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---
title: HF83311_VB1/HF83311Q_VB1 768KHz/DSD512 USB Multi-interface HiFi Audio Decoder
description: HF83311_VB1/HF83311Q_VB1 High-Performance Audio Decoder Technical Documentation
author: Technical Documentation Department
date: 2025-05-07
print_page: true
tags:
- Audio Decoder
- XMOS
- USB HiFi
- MQA
---
# HF83311_VB1/HF83311Q_VB1 768KHz/DSD512 USB Multi-interface HiFi Audio Decoder
--8<-- "common/phaten_xmos_support_img.md"
## 1. Introduction
### 1.1 Product Description
HF83311_VB1/HF83311Q_VB1 is a USB multi-interface HiFi audio decoder supporting up to PCM 768KHz/DSD512, specifically designed for HiFi decoder audio applications.
HF83311_VB1/HF83311Q_VB1 supports multiple standard audio formats, including USB Audio Class 1.0/2.0, S/PDIF, and I²S interfaces. The flexible audio interfaces allow HF83311_VB1/HF83311Q_VB1 to connect to various audio data converters, digital audio receivers and transmitters, and digital signal processors.
Compatible with AES3, S/PDIF, IEC 60958, and EIAJ CP-1201 digital audio interfaces.
HF83311_VB1/HF83311Q_VB1 provides multiple input and output modes, including USB input/I²S output and USB input/S/PDIF output, meeting the requirements of different application scenarios.
!!! warning "Important Note"
**The HF83311Q_VB1 model supports MQA audio decoding, while the HF83311_VB1 model does not support this feature.**
### 1.2 Product Features
**Audio Performance Features**
- Supports input and output sampling rates up to 768kHz
- Supports DSD64/128/256/512 formats
- **HF83311Q_VB1 supports MQA decoding**
- Built-in SSRC module, supporting conversion between different interfaces and different sampling rates
- SSRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 140dB
- Supports 16-32bit audio data formats
**Interface Support Features**
- **Multiple Digital Interface Support**
- Supports USB audio input
- Supports I²S master mode audio output
- Supports S/PDIF audio output
- Supports UART configuration interface
**USB Function Features**
- **USB Interface Features**
- Supports UAC 1.0
- Supports UAC 2.0
- Supports firmware upgrade via USB
- Supports HID, allowing MCU firmware upgrade via HID
**System Compatibility**
- UAC 2.0 protocol, supports ASIO
- Supports multiple operating systems, such as Windows, Linux, Android, macOS, and iOS
### 1.3 Application Scenarios
- USB HiFi Decoder
- USB HiFi Audio Interface
- USB HiFi Digital Player
### 1.4 Product Function Block Diagram
<figure markdown="span">
![HF83311 Block Diagram](/assets/images/hifi_audio/HF83311_diagram.png "HF83311 Block Diagram"){width="600"}
<figcaption>Figure 1: HF83311_VB1/HF83311Q_VB1 Product Function Block Diagram</figcaption>
</figure>
### 1.5 Ordering Information
| PRODUCT | ORDERING NUMBER | PACKAGE BODY | SIZE (NOM) | Hardware Model | Comments |
|:--------|:----------------|:-------------|:-----------|:------------|:------------|
| HF83311_VB1 | HF83311-VB1 | SMT STAMP-30 | 19x26mm | A316-1926-V1 | |
| HF83311Q_VB1 | HF83311Q-VB1 | SMT STAMP-30 | 19x26mm | A316-1926-V1 | **Supports MQA Decoding**|
## 2. Modes and Specifications
### 2.1 Supported Input-Output Modes
| Mode Number | Input-Output Mode | Description |
|:--------:|:------------------------|:------------------------|
| 1 | USB(UAC2.0) in-I²S(Master) out | USB input, I²S output, UAC2.0 |
| 2 | USB(UAC1.0) in-I²S(Master) out | USB input, I²S output, UAC1.0 |
| 3 | USB IN(UAC2.0)-SPDIF OUT | USB input, S/PDIF output, UAC2.0 |
### 2.2 Detailed Parameters for Each Operating Mode
#### 2.2.1 USB(UAC2.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768KHz |
| **DSD Native** | DSD64, DSD128, DSD256, DSD512 |
| **DOP** | DOP64, DOP128, DOP256 |
| **MQA** | HF83311Q_VB1 model only |
#### 2.2.2 USB(UAC1.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
#### 2.2.3 USB(UAC2.0) in → S/PDIF out Mode
**Input/Output Sampling Rate Support:**
| Interface | Audio Format | Supported Sampling Rates |
|:-----|:---------|:-------------|
| **USB Input** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz |
| **S/PDIF Output** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
**SSRC (Synchronous Sample Rate Conversion) Function:**
* Input sampling rate ≤ 192kHz: Output at original sampling rate
* Input sampling rate > 192kHz: Output at 192kHz after SSRC conversion
**SSRC Performance Specifications:**
* THD+N (@1kHz, 0dBFs): ≤-130dB
* SNR: ≥140dB
#### 2.2.4 USB(UAC1.0) in → S/PDIF out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
## 3. Pin Configuration and Functions
### 3.1 HF83311_VB1/HF83311Q_VB1 Pin Layout
<figure markdown="span">
![HF83311-VB1 Pin Diagram](/assets/images/hifi_audio/a316_1926v1_module_pin_define.png "HF83311-VB1 Pin Diagram"){width=400}
<figcaption>Figure 2: HF83311-VB1 Pin Arrangement Diagram</figcaption>
</figure>
### 3.2 HF83311_VB1/HF83311Q_VB1 Pin Description
| Pin Number | Name | Type | Function |
|:--------:|:----------|:------|:-----------------------------|
| 1 | GND | P | Module Ground |
| 2 | 3V3 | P | Module 3.3V Power Supply |
| 3 | X1D11 | I/O | XU316 Internal Clock Output |
| 4 | X1D10 | I/O | NC |
| 5 | X1D09 | I/O | NC |
| 6 | X1D01 | I/O | NC |
| 7 | X1D00 | I/O | NC |
| 8 | X0D11 | I/O | UART_RX, connects to MCU_TX |
| 9 | X0D00 | I/O | UART_TX, connects to MCU_RX |
| 10 | X0D31 | I/O | NC |
| 11 | X0D30 | I/O | NC |
| 12 | X1D34 | I/O | S/PDIF Output |
| 13 | X0D43 | I/O | NC |
| 14 | X0D41 | I/O | NC |
| 15 | X0D42 | I/O | NC |
| 16 | MCLK | I/O | Active Crystal 49.152/45.1584MHz Clock Output |
| 17 | X0D40 | I/O | NC |
| 18 | X0D38 | I/O | I²S_OUT_DATA0(Master) |
| 19 | X0D37 | I/O | NC |
| 20 | X0D36 | I/O | I²S_OUT_LRCLK(Master) |
| 21 | X0D35 | I/O | I²S_OUT_SCLK(Master) |
| 22 | X0D29 | I/O | NC |
| 23 | X1D22 | I/O | NC |
| 24 | X1D19 | I/O | NC |
| 25 | X1D16 | I/O | NC |
| 26 | USB_DP | I/O | USB Data Positive |
| 27 | USB_DM | I/O | USB Data Negative |
| 28 | X1D18 | I/O | NC |
| 29 | X1D17 | I/O | NC |
| 30 | X1D13 | I/O | NC |
!!! info "Pin Type Description"
- I/O Type Definitions in Table: I=Input, O=Output, P=Power, I/O=Input/Output
## 4. Revision History
| Version | Date | Description | Revised by |
|:------|:-------------|:---------------------------------------|:-------------|
| V1.0 | 2025-05-07 | Initial Version Release | |
| | | | |
| | | | |

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---
title: HF83311_VC1/HF83311Q_VC1 768KHz/DSD512 USB Multi-Channel and Multi-Interface HiFi Audio Decoder
description: HF83311_VC1/HF83311Q_VC1 High-Performance Audio Decoder Technical Documentation
author: Technical Documentation Department
date: 2025-05-07
print_page: true
---
# HF83311_VC1/HF83311Q_VC1 768KHz/DSD512 USB Multi-Channel and Multi-Interface HiFi Audio Decoder
--8<-- "common/phaten_xmos_support_img.md"
## 1. Introduction
### 1.1 Product Description
HF83311_VC1/HF83311Q_VC1 is a USB multi-channel and multi-interface HiFi audio decoder supporting up to PCM 768KHz/DSD512, specifically designed for HiFi decoder audio applications.
HF83311_VC1/HF83311Q_VC1 supports multiple standard audio formats, including USB Audio Class 1.0/2.0, S/PDIF, and I²S interfaces. The flexible audio interfaces allow HF83311_VC1/HF83311Q_VC1 to connect to various audio data converters, digital audio receivers and transmitters, and digital signal processors.
Compatible with AES3, S/PDIF, IEC 60958, and EIAJ CP-1201 digital audio interfaces.
HF83311_VC1/HF83311Q_VC1 provides multiple input and output modes, including USB input/I²S output and USB input/S/PDIF output, meeting the requirements of different application scenarios.
!!! warning "Important Note"
**The HF83311Q_VC1 model supports MQA audio decoding, while the HF83311_VC1 model does not support this feature.**
### 1.2 Product Features
**Audio Performance Features**
- Supports input and output sampling rates up to 768kHz
- Supports DSD64/128/256/512 formats
- **HF83311Q_VC1 supports MQA decoding**
- Built-in SSRC module, supporting conversion between different interfaces and different sampling rates
- SSRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 140dB
- Supports 16-32bit audio data formats
- Supports S/PDIF output
**Interface Support Features**
- **Multiple Digital Interface Support**
- Supports USB audio input
- Supports I²S master mode audio output
- Supports S/PDIF audio output
- Supports UART configuration interface
**USB Function Features**
- **USB Interface Features**
- Supports UAC 1.0
- Supports UAC 2.0
- Supports firmware upgrade via USB
- Supports HID, allowing MCU firmware upgrade via HID
**System Compatibility**
- UAC 2.0 protocol, supports ASIO
- Supports multiple operating systems, such as Windows, Linux, Android, macOS, and iOS
### 1.3 Application Scenarios
- USB HiFi Decoder
- USB HiFi Audio Interface
- USB HiFi Digital Player
### 1.4 Product Function Block Diagram
<figure markdown="span">
![HF83311 Block Diagram](/assets/images/hifi_audio/HF83311_diagram.png "HF83311 Block Diagram"){width="600"}
<figcaption>Figure 1: HF83311_VC1/HF83311Q_VC1 Function Block Diagram</figcaption>
</figure>
### 1.5 Ordering Information
| PRODUCT | ORDERING NUMBER | PACKAGE BODY | SIZE (NOM) | Hardware Model | Comments |
|:--------|:----------------|:-------------|:-----------|:------------|:------------|
| HF83311_VC1 | HF83311-VC1 | SMT LGA-52 | 13x13mm | A316-Mini-V1 | |
| HF83311Q_VC1 | HF83311Q-VC1 | SMT LGA-52 | 13x13mm | A316-Mini-V1 |**Supports MQA Decoding**|
## 2. Modes and Specifications
### 2.1 Supported Input-Output Modes
| Mode Number | Input-Output Mode | Description |
|:--------:|:------------------------|:------------------------|
| 1 | USB(UAC2.0) in-I²S(MASTER) out | USB input, I²S output, UAC2.0 |
| 2 | USB(UAC1.0) in-I²S(MASTER) out | USB input, I²S output, UAC1.0 |
| 3 | USB IN(UAC2.0)-SPDIF OUT | USB input, S/PDIF output, UAC2.0 |
### 2.2 Detailed Parameters for Each Operating Mode
#### 2.2.1 USB(UAC2.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768KHz |
| **DSD Native** | DSD64, DSD128, DSD256, DSD512 |
| **DOP** | DOP64, DOP128, DOP256 |
| **MQA** | HF83311Q_VC1 model only |
#### 2.2.2 USB(UAC1.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
#### 2.2.3 USB(UAC2.0) in → S/PDIF out Mode
**Input/Output Sampling Rate Support:**
| Interface | Audio Format | Supported Sampling Rates |
|:-----|:---------|:-------------|
| **USB Input** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz |
| **S/PDIF Output** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
**SSRC (Synchronous Sample Rate Conversion) Function:**
* Input sampling rate ≤ 192kHz: Output at original sampling rate
* Input sampling rate > 192kHz: Output at 192kHz after SSRC conversion
**SSRC Performance Specifications:**
* THD+N (@1kHz, 0dBFs): ≤-130dB
* SNR: ≥140dB
#### 2.2.4 USB(UAC1.0) in → S/PDIF out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
## 3. Pin Configuration and Functions
### 3.1 HF83311_VC1/HF83311Q_VC1 Pin Layout
<figure markdown="span">
![HF83311-VC1 Pin Diagram](/assets/images/hifi_audio/a316_pin.png "HF83311-VC1 Pin Diagram"){width=400}
<figcaption>Figure 2: HF83311_VC1/HF83311Q_VC1 Pin Arrangement Diagram</figcaption>
</figure>
### 3.2 HF83311_VC1/HF83311Q_VC1 Pin Description
| Pin Number | Name | Type | Function |
|:--------:|:----------|:------|:-----------------------------|
| 1 | 3.3V | P | Module 3.3V Power Supply |
| 2 | X1D13 | I/O | NC |
| 3 | X1D16 | I/O | NC |
| 4 | GND | P | Module Ground |
| 5 | X1D17 | I/O | NC |
| 6 | X1D18 | I/O | NC |
| 7 | X1D19 | I/O | NC |
| 8 | X1D22 | I/O | NC |
| 9 | X0D29 | I/O | NC |
| 10 | X0D35 | I/O | I²S_OUT_SCLK(MASTER) |
| 11 | X0D36 | I/O | I²S_OUT_LRCLK(MASTER) |
| 12 | X0D37 | I/O | NC |
| 13 | X0D38 | I/O | I²S_OUT_DATA0(MASTER) |
| 14 | X0D40 | I/O | NC |
| 15 | X0D39 | I/O | I²S_OUT_MCLK(MASTER) |
| 16 | X0D42 | I/O | NC |
| 17 | X0D41 | I/O | NC |
| 18 | X0D43 | I/O | NC |
| 19 | X1D34 | I/O | S/PDIF Output |
| 20 | GND | P | Module Ground |
| 21 | X0D30 | I/O | NC |
| 22 | X0D31 | I/O | NC |
| 23 | X0D32 | I/O | NC |
| 24 | X0D32 | I/O | NC |
| 25 | GND | P | Module Ground |
| 26 | GND | P | Module Ground |
| 27 | GND | P | Module Ground |
| 28 | X0D00 | I/O | UART_TX, connects to MCU_RX |
| 29 | X0D11 | I/O | UART_RX, connects to MCU_TX |
| 30 | X1D00 | I/O | NC |
| 31 | X1D01 | I/O | NC |
| 32 | GND | P | Module Ground |
| 33 | X1D09 | I/O | NC |
| 34 | X1D10 | I/O | NC |
| 35 | X1D11 | I/O | XU316 Internal Clock Output |
| 36 | GND | P | Module Ground |
| 37 | GND | P | Module Ground |
| 38 | TDI | I/O | XTAG Debug PIN |
| 39 | TDO | I/O | XTAG Debug PIN |
| 40 | TMS | I/O | XTAG Debug PIN |
| 41 | TCK | I/O | XTAG Debug PIN |
| 42 | RST_N | I/O | System Reset, Active Low |
| 43 | 1.8V | P | Module 1.8V Power Supply |
| 44 | GND | P | Module Ground |
| 45 | USB_DM | I/O | USB_DM |
| 46 | USB_DP | I/O | USB_DP |
| 47 | GND | P | Module Ground |
| 48 | 0.9V | P | Module 0.9V Power Supply |
| 49 | GND | P | Module Ground |
| 50 | GND | P | Module Ground |
| 51 | GND | P | Module Ground |
| 52 | GND | P | Module Ground |
!!! info "Pin Type Description"
I/O Type Definitions in Table: I=Input, O=Output, P=Power, I/O=Input/Output
## 4. Revision History
| Version | Date | Description | Revised by |
|:------|:-------------|:---------------------------------------|:-------------|
| V1.0 | 2025-05-07 | Initial Version Release | |
| | | | |
| | | | |

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---
title: HF86611_VB1/HF86611Q_VB1 768KHz/DSD512 USB Multi-Channel and Multi-Interface HiFi Audio Decoder
description: HF86611_VB1/HF86611Q_VB1 High-Performance Audio Decoder Technical Documentation
author: Technical Documentation Department
date: 2025-05-07
print_page: true
tags:
- Audio Decoder
- XMOS
- USB HiFi
- Multi-Channel
- MQA
---
# HF86611_VB1/HF86611Q_VB1 768KHz/DSD512 USB Multi-Channel and Multi-Interface HiFi Audio Decoder
--8<-- "common/phaten_xmos_support_img.md"
## 1. Introduction
### 1.1 Product Description
HF86611_VB1/HF86611Q_VB1 is a USB multi-channel and multi-interface HiFi audio decoder supporting up to PCM 768KHz/DSD512, specifically designed for HiFi decoder audio applications.
HF86611_VB1/HF86611Q_VB1 supports multiple standard audio formats, including USB Audio Class 1.0/2.0, S/PDIF, and I²S interfaces. The flexible audio interfaces allow HF86611_VB1/HF86611Q_VB1 to connect to various audio data converters, digital audio receivers and transmitters, and digital signal processors.
Compatible with AES3, S/PDIF, IEC 60958, and EIAJ CP-1201 digital audio interfaces.
HF86611_VB1/HF86611Q_VB1 provides multiple input and output modes, including USB input/I²S output, S/PDIF input/I²S output, meeting the requirements of different application scenarios.
!!! warning "Important Note"
**The HF86611Q_VB1 model supports MQA audio decoding, while the HF86611_VB1 model does not support this feature.**
### 1.2 Product Features
**Audio Performance Features**
- Supports input and output sampling rates up to 768kHz
- Supports DSD64/128/256/512 formats
- **HF86611Q_VB1 supports MQA decoding**
- Built-in SSRC and ASRC modules, supporting conversion between different interfaces and different sampling rates
- SSRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 140dB
- ASRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 135dB
- Supports 16-32bit audio data formats
**Interface Support Features**
- **Multiple Digital Interface Support**
- Supports USB audio input
- Supports I²S master mode audio output
- Supports S/PDIF audio input
- Supports UART configuration interface
- Supports four S/PDIF input channels
**USB Function Features**
- **USB Interface Features**
- Supports UAC 1.0
- Supports UAC 2.0
- Supports firmware upgrade via USB
- Supports HID, allowing MCU firmware upgrade via HID
**System Compatibility**
- UAC 2.0 protocol, supports ASIO
- Supports multiple operating systems, such as Windows, Linux, Android, macOS, and iOS
### 1.3 Application Scenarios
- USB HiFi Decoder
- USB HiFi Audio Interface
- USB HiFi Digital Player
### 1.4 Product Function Block Diagram
<figure markdown="span">
![HF86611 Block Diagram](/assets/images/hifi_audio/HF86611_diagram.png "HF86611 Block Diagram"){width="600"}
<figcaption>Figure 1: HF86611_VB1/HF86611Q_VB1 Product Function Block Diagram</figcaption>
</figure>
### 1.5 Ordering Information
| PRODUCT | ORDERING NUMBER | PACKAGE BODY | SIZE (NOM) | Hardware Model | Comments |
|:--------|:----------------|:-------------|:-----------|:------------|:------------|
| HF86611_VB1 | HF86611-VB1 | SMT STAMP-30 | 19x26mm | A316-1926-V1 | |
| HF86611Q_VB1 | HF86611Q-VB1 | SMT STAMP-30 | 19x26mm | A316-1926-V1 | **Supports MQA Decoding**|
## 2. Modes and Specifications
### 2.1 Supported Input-Output Modes
| Mode Number | Input-Output Mode | Description |
|:--------:|:------------------------|:------------------------|
| 1 | USB(UAC2.0) in-I²S(Master) out | USB input, I²S output, UAC2.0 |
| 2 | USB(UAC1.0) in-I²S(Master) out | USB input, I²S output, UAC1.0 |
| 3 | S/PDIF1 IN-I²S(Master) OUT | S/PDIF channel 1 input, I²S output |
| 4 | S/PDIF2 IN-I²S(Master) OUT | S/PDIF channel 2 input, I²S output |
| 5 | S/PDIF3 IN-I²S(Master) OUT | S/PDIF channel 3 input, I²S output |
| 6 | S/PDIF4 IN-I²S(Master) OUT | S/PDIF channel 4 input, I²S output |
### 2.2 Detailed Parameters for Each Operating Mode
#### 2.2.1 USB(UAC2.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768KHz |
| **DSD Native** | DSD64, DSD128, DSD256, DSD512 |
| **DOP** | DOP64, DOP128, DOP256 |
| **MQA** | HF86611Q_VB1 model only |
#### 2.2.2 USB(UAC1.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
#### 2.2.3 S/PDIF in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
## 3. Pin Configuration and Functions
### 3.1 HF86611_VB1/HF86611Q_VB1 Pin Layout
<figure markdown="span">
![HF86611-VB1 Pin Diagram](/assets/images/hifi_audio/a316_1926v1_module_pin_define.png "HF86611-VB1 Pin Diagram"){width=400}
<figcaption>Figure 2: HF86611-VB1 Pin Arrangement Diagram</figcaption>
</figure>
### 3.2 HF86611_VB1/HF86611Q_VB1 Pin Description
| Pin Number | Name | Type | Function |
|:--------:|:----------|:------|:-----------------------------|
| 1 | GND | P | Module Ground |
| 2 | 3V3 | P | Module 3.3V Power Supply |
| 3 | X1D11 | I/O | XU316 Internal Clock Output |
| 4 | X1D10 | I/O | S/PDIF Channel 4 Input |
| 5 | X1D09 | I/O | NC |
| 6 | X1D01 | I/O | NC |
| 7 | X1D00 | I/O | NC |
| 8 | X0D11 | I/O | UART_RX, connects to MCU_TX |
| 9 | X0D00 | I/O | UART_TX, connects to MCU_RX |
| 10 | X0D31 | I/O | NC |
| 11 | X0D30 | I/O | NC |
| 12 | X1D34 | I/O | S/PDIF Channel 3 Input |
| 13 | X0D43 | I/O | NC |
| 14 | X0D41 | I/O | NC |
| 15 | X0D42 | I/O | NC |
| 16 | MCLK | I/O | Active Crystal 49.152/45.1584MHz Clock Output |
| 17 | X0D40 | I/O | NC |
| 18 | X0D38 | I/O | I²S_OUT_DATA0(Master) |
| 19 | X0D37 | I/O | NC |
| 20 | X0D36 | I/O | I²S_OUT_LRCLK(Master) |
| 21 | X0D35 | I/O | I²S_OUT_SCLK(Master) |
| 22 | X0D29 | I/O | NC |
| 23 | X1D22 | I/O | S/PDIF Channel 2 Input |
| 24 | X1D19 | I/O | NC |
| 25 | X1D16 | I/O | NC |
| 26 | USB_DP | I/O | USB Data Positive |
| 27 | USB_DM | I/O | USB Data Negative |
| 28 | X1D18 | I/O | NC |
| 29 | X1D17 | I/O | NC |
| 30 | X1D13 | I/O | S/PDIF Channel 1 Input |
!!! info "Pin Type Description"
- I/O Type Definitions in Table: I=Input, O=Output, P=Power, I/O=Input/Output
## 4. Revision History
| Version | Date | Description | Revised by |
|:------|:-------------|:---------------------------------------|:-------------|
| V1.0 | 2025-05-07 | Initial Version Release | |
| | | | |
| | | | |

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---
title: HF86611_VC1/HF86611Q_VC1 768KHz/DSD512 USB Multi-Channel and Multi-Interface HiFi Audio Decoder
description: HF86611_VC1/HF86611Q_VC1 High-Performance Audio Decoder Technical Documentation
author: Technical Documentation Department
date: 2025-05-07
print_page: true
---
# HF86611_VC1/HF86611Q_VC1 768KHz/DSD512 USB Multi-Channel and Multi-Interface HiFi Audio Decoder
--8<-- "common/phaten_xmos_support_img.md"
## 1. Introduction
### 1.1 Product Description
HF86611_VC1/HF86611Q_VC1 is a USB multi-channel and multi-interface HiFi audio decoder supporting up to PCM 768KHz/DSD512, specifically designed for HiFi decoder audio applications.
HF86611_VC1/HF86611Q_VC1 supports multiple standard audio formats, including USB Audio Class 1.0/2.0, S/PDIF, and I²S interfaces. The flexible audio interfaces allow HF86611_VC1/HF86611Q_VC1 to connect to various audio data converters, digital audio receivers and transmitters, and digital signal processors.
Compatible with AES3, S/PDIF, IEC 60958, and EIAJ CP-1201 digital audio interfaces.
HF86611_VC1/HF86611Q_VC1 provides multiple input and output modes, including USB input/I²S output, S/PDIF input/I²S output, meeting the requirements of different application scenarios.
!!! warning "Important Note"
**The HF86611Q_VC1 model supports MQA audio decoding, while the HF86611_VC1 model does not support this feature.**
### 1.2 Product Features
**Audio Performance Features**
- Supports input and output sampling rates up to 768kHz
- Supports DSD64/128/256/512 formats
- **HF86611Q_VC1 supports MQA decoding**
- Built-in SSRC and ASRC modules, supporting conversion between different interfaces and different sampling rates
- SSRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 140dB
- ASRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 135dB
- Supports 16-32bit audio data formats
- Supports four S/PDIF input channels
**Interface Support Features**
- **Multiple Digital Interface Support**
- Supports USB audio input
- Supports I²S master mode audio output
- Supports S/PDIF audio input
- Supports UART configuration interface
**USB Function Features**
- **USB Interface Features**
- Supports UAC 1.0
- Supports UAC 2.0
- Supports firmware upgrade via USB
- Supports HID, allowing MCU firmware upgrade via HID
**System Compatibility**
- UAC 2.0 protocol, supports ASIO
- Supports multiple operating systems, such as Windows, Linux, Android, macOS, and iOS
### 1.3 Application Scenarios
- USB HiFi Decoder
- USB HiFi Audio Interface
- USB HiFi Digital Player
### 1.4 Product Function Block Diagram
<figure markdown="span">
![HF86611 Block Diagram](/assets/images/hifi_audio/HF86611_diagram.png "HF86611 Block Diagram"){width="600"}
<figcaption>Figure 1: HF86611_VC1/HF86611Q_VC1 Function Block Diagram</figcaption>
</figure>
### 1.5 Ordering Information
| PRODUCT | ORDERING NUMBER | PACKAGE BODY | SIZE (NOM) | Hardware Model | Comments |
|:--------|:----------------|:-------------|:-----------|:------------|:------------|
| HF86611_VC1 | HF86611-VC1 | SMT LGA-52 | 13x13mm | A316-Mini-V1 | |
| HF86611Q_VC1 | HF86611Q-VC1 | SMT LGA-52 | 13x13mm | A316-Mini-V1 |**Supports MQA Decoding**|
## 2. Modes and Specifications
### 2.1 Supported Input-Output Modes
| Mode Number | Input-Output Mode | Description |
|:--------:|:------------------------|:------------------------|
| 1 | USB(UAC2.0) in-I²S(MASTER) out | USB input, I²S output, UAC2.0 |
| 2 | USB(UAC1.0) in-I²S(MASTER) out | USB input, I²S output, UAC1.0 |
| 3 | S/PDIF1 IN-I²S(MASTER) OUT | S/PDIF channel 1 input, I²S output |
| 4 | S/PDIF2 IN-I²S(MASTER) OUT | S/PDIF channel 2 input, I²S output |
| 5 | S/PDIF3 IN-I²S(MASTER) OUT | S/PDIF channel 3 input, I²S output |
| 6 | S/PDIF4 IN-I²S(MASTER) OUT | S/PDIF channel 4 input, I²S output |
### 2.2 Detailed Parameters for Each Operating Mode
#### 2.2.1 USB(UAC2.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768KHz |
| **DSD Native** | DSD64, DSD128, DSD256, DSD512 |
| **DOP** | DOP64, DOP128, DOP256 |
| **MQA** | HF86611Q_VC1 model only |
#### 2.2.2 USB(UAC1.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
#### 2.2.3 S/PDIF in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
## 3. Pin Configuration and Functions
### 3.1 HF86611_VC1/HF86611Q_VC1 Pin Layout
<figure markdown="span">
![HF86611-VC1 Pin Diagram](/assets/images/hifi_audio/a316_pin.png "HF86611-VC1 Pin Diagram"){width=400}
<figcaption>Figure 2: HF86611_VC1/HF86611Q_VC1 Pin Arrangement Diagram</figcaption>
</figure>
### 3.2 HF86611_VC1/HF86611Q_VC1 Pin Description
| Pin Number | Name | Type | Function |
|:--------:|:----------|:------|:-----------------------------|
| 1 | 3.3V | P | Module 3.3V Power Supply |
| 2 | X1D13 | I/O | S/PDIF Channel 1 Input |
| 3 | X1D16 | I/O | NC |
| 4 | GND | P | Module Ground |
| 5 | X1D17 | I/O | NC |
| 6 | X1D18 | I/O | NC |
| 7 | X1D19 | I/O | NC |
| 8 | X1D22 | I/O | S/PDIF Channel 2 Input |
| 9 | X0D29 | I/O | NC |
| 10 | X0D35 | I/O | I²S_OUT_SCLK(MASTER) |
| 11 | X0D36 | I/O | I²S_OUT_LRCLK(MASTER) |
| 12 | X0D37 | I/O | NC |
| 13 | X0D38 | I/O | I²S_OUT_DATA0(MASTER) |
| 14 | X0D40 | I/O | NC |
| 15 | X0D39 | I/O | I²S_OUT_MCLK(MASTER) |
| 16 | X0D42 | I/O | NC |
| 17 | X0D41 | I/O | NC |
| 18 | X0D43 | I/O | NC |
| 19 | X1D34 | I/O | S/PDIF Channel 3 Input |
| 20 | GND | P | Module Ground |
| 21 | X0D30 | I/O | NC |
| 22 | X0D31 | I/O | NC |
| 23 | X0D32 | I/O | NC |
| 24 | X0D32 | I/O | NC |
| 25 | GND | P | Module Ground |
| 26 | GND | P | Module Ground |
| 27 | GND | P | Module Ground |
| 28 | X0D00 | I/O | UART_TX, connects to MCU_RX |
| 29 | X0D11 | I/O | UART_RX, connects to MCU_TX |
| 30 | X1D00 | I/O | NC |
| 31 | X1D01 | I/O | NC |
| 32 | GND | P | Module Ground |
| 33 | X1D09 | I/O | NC |
| 34 | X1D10 | I/O | S/PDIF Channel 4 Input |
| 35 | X1D11 | I/O | XU316 Internal Clock Output |
| 36 | GND | P | Module Ground |
| 37 | GND | P | Module Ground |
| 38 | TDI | I/O | XTAG Debug PIN |
| 39 | TDO | I/O | XTAG Debug PIN |
| 40 | TMS | I/O | XTAG Debug PIN |
| 41 | TCK | I/O | XTAG Debug PIN |
| 42 | RST_N | I/O | System Reset, Active Low |
| 43 | 1.8V | P | Module 1.8V Power Supply |
| 44 | GND | P | Module Ground |
| 45 | USB_DM | I/O | USB_DM |
| 46 | USB_DP | I/O | USB_DP |
| 47 | GND | P | Module Ground |
| 48 | 0.9V | P | Module 0.9V Power Supply |
| 49 | GND | P | Module Ground |
| 50 | GND | P | Module Ground |
| 51 | GND | P | Module Ground |
| 52 | GND | P | Module Ground |
!!! info "Pin Type Description"
I/O Type Definitions in Table: I=Input, O=Output, P=Power, I/O=Input/Output
## 4. Revision History
| Version | Date | Description | Revised by |
|:------|:-------------|:---------------------------------------|:-------------|
| V1.0 | 2025-05-07 | Initial Version Release | |
| | | | |
| | | | |

231
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---
title: HF87611_VB1/HF87611Q_VB1 768KHz/DSD512 USB Multi-Channel and Multi-Interface HiFi Audio Decoder
description: HF87611_VB1/HF87611Q_VB1 High-Performance Audio Decoder Technical Documentation
author: Technical Documentation Department
date: 2025-05-07
print_page: true
tags:
- Audio Decoder
- XMOS
- USB HiFi
- Multi-Channel
- MQA
---
# HF87611_VB1/HF87611Q_VB1 768KHz/DSD512 USB Multi-Channel and Multi-Interface HiFi Audio Decoder
--8<-- "common/phaten_xmos_support_img.md"
## 1. Introduction
### 1.1 Product Description
HF87611_VB1/HF87611Q_VB1 is a USB multi-channel and multi-interface HiFi audio decoder supporting up to PCM 768KHz/DSD512, specifically designed for HiFi decoder audio applications.
HF87611_VB1/HF87611Q_VB1 supports multiple standard audio formats, including USB Audio Class 1.0/2.0, S/PDIF, and I²S interfaces. The flexible audio interfaces allow HF87611_VB1/HF87611Q_VB1 to connect to various audio data converters, digital audio receivers and transmitters, and digital signal processors.
Compatible with AES3, S/PDIF, IEC 60958, and EIAJ CP-1201 digital audio interfaces.
HF87611_VB1/HF87611Q_VB1 provides multiple input and output modes, including USB input/I²S output, S/PDIF input/I²S output, I²S(slave) input/I²S(master) output and USB input/S/PDIF output, meeting the requirements of different application scenarios.
!!! warning "Important Note"
**The HF87611Q_VB1 model supports MQA audio decoding, while the HF87611_VB1 model does not support this feature.**
### 1.2 Product Features
**Audio Performance Features**
- Supports input and output sampling rates up to 768kHz
- Supports DSD64/128/256/512 formats
- **HF87611Q_VB1 supports MQA decoding**
- Built-in SSRC and ASRC modules, supporting conversion between different interfaces and different sampling rates
- SSRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 140dB
- ASRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 135dB
- Supports 16-32bit audio data formats
**Interface Support Features**
- **Multiple Digital Interface Support**
- Supports USB audio input
- Supports I²S slave mode audio input
- Supports I²S master mode audio output
- Supports S/PDIF audio input/output
- Supports UART configuration interface
- Supports three S/PDIF input/output channels
**USB Function Features**
- **USB Interface Features**
- Supports UAC 1.0
- Supports UAC 2.0
- Supports firmware upgrade via USB
- Supports HID, allowing MCU firmware upgrade via HID
**System Compatibility**
- UAC 2.0 protocol, supports ASIO
- Supports multiple operating systems, such as Windows, Linux, Android, macOS, and iOS
### 1.3 Application Scenarios
- USB HiFi Decoder
- USB HiFi Audio Interface
- USB HiFi Digital Player
### 1.4 Product Function Block Diagram
<figure markdown="span">
![HF87611 Block Diagram](/assets/images/hifi_audio/HF87611_diagram.png "HF87611 Block Diagram"){width="600"}
<figcaption>Figure 1: HF87611_VB1/HF87611Q_VB1 Product Function Block Diagram</figcaption>
</figure>
### 1.5 Ordering Information
| PRODUCT | ORDERING NUMBER | PACKAGE BODY | SIZE (NOM) | Hardware Model | Comments |
|:--------|:----------------|:-------------|:-----------|:------------|:------------|
| HF87611_VB1 | HF87611-VB1 | SMT STAMP-30 | 19x26mm | A316-1926-V1 | |
| HF87611Q_VB1 | HF87611Q-VB1 | SMT STAMP-30 | 19x26mm | A316-1926-V1 | **Supports MQA Decoding**|
## 2. Modes and Specifications
### 2.1 Supported Input-Output Modes
| Mode Number | Input-Output Mode | Description |Mode Switching Command Value (Reference Product Configuration Protocol 0x03 and 0x23 Command)|
|:--------:|:------------------------|:------------------------|:------------------------|
| 1 | USB(UAC2.0) in-I²S(Master) out | USB input, I²S output, UAC2.0 |0x00, 0x80, 0xa9, 0x00, 0x01|
| 2 | USB(UAC1.0) in-I²S(Master) out | USB input, I²S output, UAC1.0 |0x00, 0x80, 0x01, 0x00, 0x02|
| 3 | S/PDIF1 IN-I²S(Master) OUT | S/PDIF channel 1 input, I²S output |0x10, 0x80, 0x65, 0x10, 0x03|
| 4 | S/PDIF2 IN-I²S(Master) OUT | S/PDIF channel 2 input, I²S output |0x00, 0x80, 0x65, 0x10, 0x04|
| 5 | USB IN(UAC2.0)-SPDIF OUT | USB input, S/PDIF output, UAC2.0 |0x00, 0x80, 0xc5, 0x08, 0x05|
| 6 | I²S(slave) in-I²S(Master) OUT | I²S slave mode input, I²S output |0x00, 0x82, 0xd5, 0x81, 0x06|
### 2.2 Detailed Parameters for Each Operating Mode
#### 2.2.1 USB(UAC2.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768KHz |
| **DSD Native** | DSD64, DSD128, DSD256, DSD512 |
| **DOP** | DOP64, DOP128, DOP256 |
| **MQA** | HF87611Q_VB1 model only |
#### 2.2.2 USB(UAC1.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
#### 2.2.3 S/PDIF in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
#### 2.2.4 USB(UAC2.0) in → S/PDIF out Mode
**Input/Output Sampling Rate Support:**
| Interface | Audio Format | Supported Sampling Rates |
|:-----|:---------|:-------------|
| **USB Input** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz |
| **S/PDIF Output** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
**SSRC (Synchronous Sample Rate Conversion) Function:**
* Input sampling rate ≤ 192kHz: Output at original sampling rate
* Input sampling rate > 192kHz: Output at 192kHz after SSRC conversion
**SSRC Performance Specifications:**
* THD+N (@1kHz, 0dBFs): ≤-130dB
* SNR: ≥140dB
#### 2.2.5 USB(UAC1.0) in → S/PDIF out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
#### 2.2.6 I²S(slave) in → I²S(Master) out Mode
**Input/Output Sampling Rate Support:**
| Interface | Audio Format | Supported Sampling Rates |
|:-----|:---------|:-------------|
| **I²S Input (Slave Mode)** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
| **I²S Output (Master Mode)** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
**ASRC (Asynchronous Sample Rate Conversion) Function:**
* Internal ASRC conversion support, input device can omit providing master clock (MClock)
**ASRC Performance Specifications:**
* THD+N (@1kHz, 0dBFs): ≤-130dB
* SNR: ≥135dB
## 3. Pin Configuration and Functions
### 3.1 HF87611_VB1/HF87611Q_VB1 Pin Layout
<figure markdown="span">
![HF87611-VB1 Pin Diagram](/assets/images/hifi_audio/a316_1926v1_module_pin_define.png "HF87611-VB1 Pin Diagram"){width=400}
<figcaption>Figure 2: HF87611-VB1 Pin Arrangement Diagram</figcaption>
</figure>
### 3.2 HF87611_VB1/HF87611Q_VB1 Pin Description
| Pin Number | Name | Type | Function |
|:--------:|:----------|:------|:-----------------------------|
| 1 | GND | P | Module Ground |
| 2 | 3V3 | P | Module 3.3V Power Supply |
| 3 | X1D11 | I/O | XU316 Internal Clock Output |
| 4 | X1D10 | I/O | I²S_IN_BCLK(SLAVE) |
| 5 | X1D09 | I/O | NC |
| 6 | X1D01 | I/O | I²S_IN_DATA0(SLAVE) |
| 7 | X1D00 | I/O | I²S_IN_LRCLK(SLAVE) |
| 8 | X0D11 | I/O | UART_RX, connects to MCU_TX |
| 9 | X0D00 | I/O | UART_TX, connects to MCU_RX |
| 10 | X0D31 | I/O | NC |
| 11 | X0D30 | I/O | NC |
| 12 | X1D34 | I/O | S/PDIF Output/S/PDIF Channel 3 Input |
| 13 | X0D43 | I/O | NC |
| 14 | X0D41 | I/O | NC |
| 15 | X0D42 | I/O | NC |
| 16 | MCLK | I/O | Active Crystal 49.152/45.1584MHz Clock Output |
| 17 | X0D40 | I/O | NC |
| 18 | X0D38 | I/O | I²S_OUT_DATA0(Master) |
| 19 | X0D37 | I/O | NC |
| 20 | X0D36 | I/O | I²S_OUT_LRCLK(Master) |
| 21 | X0D35 | I/O | I²S_OUT_SCLK(Master) |
| 22 | X0D29 | I/O | NC |
| 23 | X1D22 | I/O | S/PDIF Channel 2 Input |
| 24 | X1D19 | I/O | NC |
| 25 | X1D16 | I/O | NC |
| 26 | USB_DP | I/O | USB Data Positive |
| 27 | USB_DM | I/O | USB Data Negative |
| 28 | X1D18 | I/O | NC |
| 29 | X1D17 | I/O | NC |
| 30 | X1D13 | I/O | S/PDIF Channel 1 Input |
!!! info "Pin Type Description"
- I/O Type Definitions in Table: I=Input, O=Output, P=Power, I/O=Input/Output
## 4. Revision History
| Version | Date | Description | Revised by |
|:------|:-------------|:---------------------------------------|:-------------|
| V1.0 | 2025-05-07 | Initial Version Release | |
| | | | |
| | | | |

245
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---
title: HF87611_VC1/HF87611Q_VC1 768KHz/DSD512 USB Multi-Channel and Multi-Interface HiFi Audio Decoder
description: HF87611_VC1/HF87611Q_VC1 High-Performance Audio Decoder Technical Documentation
author: Technical Documentation Department
date: 2025-05-07
print_page: true
---
# HF87611_VC1/HF87611Q_VC1 768KHz/DSD512 USB Multi-Channel and Multi-Interface HiFi Audio Decoder
--8<-- "common/phaten_xmos_support_img.md"
## 1. Introduction
### 1.1 Product Description
HF87611_VC1/HF87611Q_VC1 is a USB multi-channel and multi-interface HiFi audio decoder supporting up to PCM 768KHz/DSD512, specifically designed for HiFi decoder audio applications.
HF87611_VC1/HF87611Q_VC1 supports multiple standard audio formats, including USB Audio Class 1.0/2.0, S/PDIF, and I²S interfaces. The flexible audio interfaces allow HF87611_VC1/HF87611Q_VC1 to connect to various audio data converters, digital audio receivers and transmitters, and digital signal processors.
Compatible with AES3, S/PDIF, IEC 60958, and EIAJ CP-1201 digital audio interfaces.
HF87611_VC1/HF87611Q_VC1 provides multiple input and output modes, including USB input/I²S output, S/PDIF input/I²S output, I²S(slave) input/I²S(MASTER) output and USB input/S/PDIF output, meeting the requirements of different application scenarios.
!!! warning "Important Note"
**The HF87611Q_VC1 model supports MQA audio decoding, while the HF87611_VC1 model does not support this feature.**
### 1.2 Product Features
**Audio Performance Features**
- Supports input and output sampling rates up to 768kHz
- Supports DSD64/128/256/512 formats
- **HF87611Q_VC1 supports MQA decoding**
- Built-in SSRC and ASRC modules, supporting conversion between different interfaces and different sampling rates
- SSRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 140dB
- ASRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 135dB
- Supports 16-32bit audio data formats
- Supports three S/PDIF input/output channels
**Interface Support Features**
- **Multiple Digital Interface Support**
- Supports USB audio input
- Supports I²S slave mode audio input
- Supports I²S master mode audio output
- Supports S/PDIF audio input/output
- Supports UART configuration interface
**USB Function Features**
- **USB Interface Features**
- Supports UAC 1.0
- Supports UAC 2.0
- Supports firmware upgrade via USB
- Supports HID, allowing MCU firmware upgrade via HID
**System Compatibility**
- UAC 2.0 protocol, supports ASIO
- Supports multiple operating systems, such as Windows, Linux, Android, macOS, and iOS
### 1.3 Application Scenarios
- USB HiFi Decoder
- USB HiFi Audio Interface
- USB HiFi Digital Player
### 1.4 Product Function Block Diagram
<figure markdown="span">
![HF87611 Block Diagram](/assets/images/hifi_audio/HF87611_diagram.png "HF87611 Block Diagram"){width="600"}
<figcaption>Figure 1: HF87611_VC1/HF87611Q_VC1 Function Block Diagram</figcaption>
</figure>
### 1.5 Ordering Information
| PRODUCT | ORDERING NUMBER | PACKAGE BODY | SIZE (NOM) | Hardware Model | Comments |
|:--------|:----------------|:-------------|:-----------|:------------|:------------|
| HF87611_VC1 | HF87611-VC1 | SMT LGA-52 | 13x13mm | A316-Mini-V1 | |
| HF87611Q_VC1 | HF87611Q-VC1 | SMT LGA-52 | 13x13mm | A316-Mini-V1 |**Supports MQA Decoding**|
## 2. Modes and Specifications
### 2.1 Supported Input-Output Modes
| Mode Number | Input-Output Mode | Description |Mode Switching Command Value (Reference Product Configuration Protocol 0x03 and 0x23 Command)|
|:--------:|:------------------------|:------------------------|:------------------------|
| 1 | USB(UAC2.0) in-I²S(Master) out | USB input, I²S output, UAC2.0 |0x00, 0x80, 0xa9, 0x00, 0x01|
| 2 | USB(UAC1.0) in-I²S(Master) out | USB input, I²S output, UAC1.0 |0x00, 0x80, 0x01, 0x00, 0x02|
| 3 | S/PDIF1 IN-I²S(Master) OUT | S/PDIF channel 1 input, I²S output |0x10, 0x80, 0x65, 0x10, 0x03|
| 4 | S/PDIF2 IN-I²S(Master) OUT | S/PDIF channel 2 input, I²S output |0x00, 0x80, 0x65, 0x10, 0x04|
| 5 || USB IN(UAC2.0)-SPDIF OUT | USB input, S/PDIF output, UAC2.0 |0x00, 0x80, 0xc5, 0x08, 0x05|
| 6 | I²S(slave) in-I²S(Master) OUT | I²S slave mode input, I²S output |0x00, 0x82, 0xd5, 0x81, 0x06|
### 2.2 Detailed Parameters for Each Operating Mode
#### 2.2.1 USB(UAC2.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768KHz |
| **DSD Native** | DSD64, DSD128, DSD256, DSD512 |
| **DOP** | DOP64, DOP128, DOP256 |
| **MQA** | HF87611Q_VC1 model only |
#### 2.2.2 USB(UAC1.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
#### 2.2.3 S/PDIF in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
#### 2.2.4 USB(UAC2.0) in → S/PDIF out Mode
**Input/Output Sampling Rate Support:**
| Interface | Audio Format | Supported Sampling Rates |
|:-----|:---------|:-------------|
| **USB Input** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz |
| **S/PDIF Output** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
**SSRC (Synchronous Sample Rate Conversion) Function:**
* Input sampling rate ≤ 192kHz: Output at original sampling rate
* Input sampling rate > 192kHz: Output at 192kHz after SSRC conversion
**SSRC Performance Specifications:**
* THD+N (@1kHz, 0dBFs): ≤-130dB
* SNR: ≥140dB
#### 2.2.5 USB(UAC1.0) in → S/PDIF out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
#### 2.2.6 I²S(slave) in → I²S(MASTER) out Mode
**Input/Output Sampling Rate Support:**
| Interface | Audio Format | Supported Sampling Rates |
|:-----|:---------|:-------------|
| **I²S Input (Slave Mode)** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
| **I²S Output (Master Mode)** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
**ASRC (Asynchronous Sample Rate Conversion) Function:**
* Internal ASRC conversion support, input device can omit providing master clock (MClock)
**ASRC Performance Specifications:**
* THD+N (@1kHz, 0dBFs): ≤-130dB
* SNR: ≥135dB
## 3. Pin Configuration and Functions
### 3.1 HF87611_VC1/HF87611Q_VC1 Pin Layout
<figure markdown="span">
![HF87611-VC1 Pin Diagram](/assets/images/hifi_audio/a316_pin.png "HF87611-VC1 Pin Diagram"){width=400}
<figcaption>Figure 2: HF87611_VC1/HF87611Q_VC1 Pin Arrangement Diagram</figcaption>
</figure>
### 3.2 HF87611_VC1/HF87611Q_VC1 Pin Description
| Pin Number | Name | Type | Function |
|:--------:|:----------|:------|:-----------------------------|
| 1 | 3.3V | P | Module 3.3V Power Supply |
| 2 | X1D13 | I/O | S/PDIF Channel 1 Input |
| 3 | X1D16 | I/O | NC |
| 4 | GND | P | Module Ground |
| 5 | X1D17 | I/O | NC |
| 6 | X1D18 | I/O | NC |
| 7 | X1D19 | I/O | NC |
| 8 | X1D22 | I/O | S/PDIF Channel 2 Input |
| 9 | X0D29 | I/O | NC |
| 10 | X0D35 | I/O | I²S_OUT_SCLK(MASTER) |
| 11 | X0D36 | I/O | I²S_OUT_LRCLK(MASTER) |
| 12 | X0D37 | I/O | NC |
| 13 | X0D38 | I/O | I²S_OUT_DATA0(MASTER) |
| 14 | X0D40 | I/O | NC |
| 15 | X0D39 | I/O | I²S_OUT_MCLK(MASTER) |
| 16 | X0D42 | I/O | NC |
| 17 | X0D41 | I/O | NC |
| 18 | X0D43 | I/O | NC |
| 19 | X1D34 | I/O | S/PDIF Output/S/PDIF Channel 3 Input |
| 20 | GND | P | Module Ground |
| 21 | X0D30 | I/O | NC |
| 22 | X0D31 | I/O | NC |
| 23 | X0D32 | I/O | NC |
| 24 | X0D32 | I/O | NC |
| 25 | GND | P | Module Ground |
| 26 | GND | P | Module Ground |
| 27 | GND | P | Module Ground |
| 28 | X0D00 | I/O | UART_TX, connects to MCU_RX |
| 29 | X0D11 | I/O | UART_RX, connects to MCU_TX |
| 30 | X1D00 | I/O | I²S_IN_LRCLK(SLAVE) |
| 31 | X1D01 | I/O | I²S_IN_DATA0(SLAVE) |
| 32 | GND | P | Module Ground |
| 33 | X1D09 | I/O | NC |
| 34 | X1D10 | I/O | I²S_IN_BCLK(SLAVE) |
| 35 | X1D11 | I/O | XU316 Internal Clock Output |
| 36 | GND | P | Module Ground |
| 37 | GND | P | Module Ground |
| 38 | TDI | I/O | XTAG Debug PIN |
| 39 | TDO | I/O | XTAG Debug PIN |
| 40 | TMS | I/O | XTAG Debug PIN |
| 41 | TCK | I/O | XTAG Debug PIN |
| 42 | RST_N | I/O | System Reset, Active Low |
| 43 | 1.8V | P | Module 1.8V Power Supply |
| 44 | GND | P | Module Ground |
| 45 | USB_DM | I/O | USB_DM |
| 46 | USB_DP | I/O | USB_DP |
| 47 | GND | P | Module Ground |
| 48 | 0.9V | P | Module 0.9V Power Supply |
| 49 | GND | P | Module Ground |
| 50 | GND | P | Module Ground |
| 51 | GND | P | Module Ground |
| 52 | GND | P | Module Ground |
!!! info "Pin Type Description"
I/O Type Definitions in Table: I=Input, O=Output, P=Power, I/O=Input/Output
## 4. Revision History
| Version | Date | Description | Revised by |
|:------|:-------------|:---------------------------------------|:-------------|
| V1.0 | 2025-05-07 | Initial Version Release | |
| | | | |
| | | | |

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---
title: PH73211L_VC1/PH73211LQ_VC1 384KHz/DSD256 USB Low-Power HiFi Audio Decoder
description: PH73211L_VC1/PH73211LQ_VC1 Low-Power Audio Decoder Technical Documentation
author: Technical Documentation Department
date: 2025-05-07
print_page: true
tags:
- Audio Decoder
- XMOS
- USB HiFi
- MQA
---
# PH73211L_VC1/PH73211LQ_VC1 384KHz/DSD256 USB Low-Power HiFi Audio Decoder
--8<-- "common/phaten_xmos_support_img.md"
## 1. Introduction
### 1.1 Product Description
PH73211L_VC1/PH73211LQ_VC1 is a USB low-power HiFi audio decoder supporting up to PCM 384KHz/DSD256, specifically designed for portable HiFi decoder audio applications.
PH73211L_VC1/PH73211LQ_VC1 supports multiple standard audio formats, including USB Audio Class 1.0/2.0 and I²S interface. The flexible audio interface allows PH73211L_VC1/PH73211LQ_VC1 to connect to various audio data converters, digital audio receivers and transmitters, as well as digital signal processors.
PH73211L_VC1/PH73211LQ_VC1 provides USB input/I²S output mode, meeting the requirements of high-quality audio application scenarios.
!!! warning "Important Note"
**The PH73211LQ_VC1 model supports MQA audio decoding, while the PH73211L_VC1 model does not support this feature.**
### 1.2 Product Features
**Audio Performance Features**
- Supports input and output sampling rates up to 384kHz
- Supports DSD64/128/256 formats
- **PH73211LQ_VC1 supports MQA decoding**
- Built-in SSRC and ASRC modules, supporting conversion between different interfaces and sampling rates
- SSRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 140dB
- ASRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 135dB
- Supports 16-32bit audio data formats
**Interface Support Features**
- **Multiple Digital Interface Support**
- Supports USB audio input
- Supports I²S master mode audio output
- Supports UART configuration interface
**USB Features**
- **USB Interface Features**
- Supports UAC 1.0
- Supports UAC 2.0
- Supports firmware upgrade via USB
- Supports HID, allowing MCU firmware upgrade via HID
**System Compatibility**
- UAC 2.0 protocol, supports ASIO
- Supports multiple operating systems, such as Windows, Linux, Android, macOS, and iOS
### 1.3 Application Scenarios
- USB Low-Power HiFi Decoder (USB Portable HiFi Decoder)
### 1.4 Product Function Block Diagram
<figure markdown="span">
![PH73211L Block Diagram](/assets/images/hifi_audio/ph73211l_diagram.png "PH73211L Block Diagram"){width="600"}
<figcaption>Figure 1: PH73211L_VC1/PH73211LQ_VC1 Product Function Block Diagram</figcaption>
</figure>
### 1.5 Ordering Information
| PRODUCT | ORDERING NUMBER | PACKAGE BODY | SIZE (NOM) | Hardware Model | Comments |
|:--------|:----------------|:-------------|:-----------|:------------|:------------|
| PH73211L_VC1 | PH73211L-VC1 | SMT STAMP-30 | 13x13mm | A316-Mini-V1 | |
| PH73211LQ_VC1 | PH73211LQ-VC1 | SMT STAMP-30 | 13x13mm | A316-Mini-V1 | **Supports MQA decoding**|
## 2. Modes and Specifications
### 2.1 Supported Input/Output Modes
| Mode Number | Input/Output Mode | Description |
|:--------:|:------------------------|:------------------------|
| 1 | USB(UAC2.0) in-I²S(Master) out | USB input, I²S output, UAC2.0, maximum support for 384KHz/DSD256 |
| 2 | USB(UAC1.0) in-I²S(Master) out | USB input, I²S output, UAC1.0, fixed at 48KHz |
### 2.2 Detailed Parameters for Each Operating Mode
#### 2.2.1 USB(UAC2.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz |
| **DSD Native** | DSD64, DSD128, DSD256 |
| **DOP** | DOP64, DOP128, DOP256 |
| **MQA** | Only supported by PH73211LQ_VC1 |
#### 2.2.2 USB(UAC1.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
## 3. Pin Configuration and Function
### 3.1 PH73211L_VC1/PH73211LQ_VC1 Pin Layout
<figure markdown="span">
![PH73211L-VC1 Pin Diagram](/assets/images/hifi_audio/a316_pin.png "PH73211L-VC1 Pin Diagram"){width=400}
<figcaption>Figure 2: PH73211L-VC1 Pin Layout Diagram</figcaption>
</figure>
### 3.2 PH73211L_VC1/PH73211LQ_VC1 Pin Description
| Module Pin Number | Name | Type | Function |
| :------: | :------: | :------: | :------ |
| 1 | 3.3V | P | Module 3.3V power supply |
| 2 | X1D13 | I/O | Multi-function GPIO |
| 3 | X1D16 | I/O | Multi-function GPIO |
| 4 | GND | P | Module ground |
| 5 | X1D17 | I/O | Multi-function GPIO |
| 6 | X1D18 | I/O | Multi-function GPIO |
| 7 | X1D19 | I/O | Multi-function GPIO |
| 8 | X1D22 | I/O | Multi-function GPIO |
| 9 | X0D29 | I/O | Multi-function GPIO |
| 10 | X0D35 | I/O | Multi-function GPIO |
| 11 | X0D36 | I/O | Multi-function GPIO |
| 12 | X0D37 | I/O | Multi-function GPIO |
| 13 | X0D38 | I/O | Multi-function GPIO |
| 14 | X0D40 | I/O | Multi-function GPIO |
| 15 | X0D39 | I/O | Multi-function GPIO |
| 16 | X0D42 | I/O | Multi-function GPIO |
| 17 | X0D41 | I/O | Multi-function GPIO |
| 18 | X0D43 | I/O | Multi-function GPIO |
| 19 | X1D34 | I/O | Multi-function GPIO |
| 20 | GND | P | Module ground |
| 21 | X0D30 | I/O | Multi-function GPIO |
| 22 | X0D31 | I/O | Multi-function GPIO |
| 23 | X0D32 | I/O | Multi-function GPIO |
| 24 | X0D32 | I/O | Multi-function GPIO |
| 25 | GND | P | Module ground |
| 26 | GND | P | Module ground |
| 27 | GND | P | Module ground |
| 28 | X0D00 | I/O | Multi-function GPIO |
| 29 | X0D11 | I/O | Multi-function GPIO |
| 30 | X1D00 | I/O | Multi-function GPIO |
| 31 | X1D01 | I/O | Multi-function GPIO |
| 32 | GND | P | Module ground |
| 33 | X1D09 | I/O | Multi-function GPIO |
| 34 | X1D10 | I/O | Multi-function GPIO |
| 35 | X1D11 | I/O | Multi-function GPIO/XU316 internal clock output |
| 36 | GND | P | Module ground |
| 37 | GND | P | Module ground |
| 38 | TDI | I/O | Multi-function GPIO |
| 39 | TDO | I/O | Multi-function GPIO |
| 40 | TMS | I/O | Multi-function GPIO |
| 41 | TCK | I/O | Multi-function GPIO |
| 42 | RST_N | I/O | Multi-function GPIO |
| 43 | 1.8V | P | Module 1.8V power supply |
| 44 | GND | P | Module ground |
| 45 | USB_DM | I/O | USB_DM |
| 46 | USB_DP | I/O | USB_DP |
| 47 | GND | P | Module ground |
| 48 | 0.9V | P | Module 0.9V power supply |
| 49 | GND | P | Module ground |
| 50 | GND | P | Module ground |
| 51 | GND | P | Module ground |
| 52 | GND | P | Module ground |
!!! info "Pin Type Description"
- I/O type definitions in the table: I=Input, O=Output, P=Power, I/O=Input/Output
## 4. Revision History
| Version | Date | Description | Revised by |
|:------|:-------------|:---------------------------------------|:-------------|
| V1.0 | 2025-05-07 | Initial version release | |
| | | | |
| | | | |

221
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---
title: PH73311L_VC1/PH73311LQ_VC1 384KHz/DSD256 USB Low-Power HiFi Audio Decoder
description: PH73311L_VC1/PH73311LQ_VC1 Low-Power Audio Decoder Technical Documentation
author: Technical Documentation Department
date: 2025-05-07
print_page: true
tags:
- Audio Decoder
- XMOS
- USB HiFi
- MQA
---
# PH73311L_VC1/PH73311LQ_VC1 384KHz/DSD256 USB Low-Power HiFi Audio Decoder
--8<-- "common/phaten_xmos_support_img.md"
## 1. Introduction
### 1.1 Product Description
PH73311L_VC1/PH73311LQ_VC1 is a USB low-power HiFi audio decoder supporting up to PCM 384KHz/DSD256, specifically designed for portable HiFi decoder audio applications.
PH73311L_VC1/PH73311LQ_VC1 supports multiple standard audio formats, including USB Audio Class 1.0/2.0, S/PDIF, and I²S interfaces. The flexible audio interface allows PH73311L_VC1/PH73311LQ_VC1 to connect to various audio data converters, digital audio receivers and transmitters, as well as digital signal processors.
Compatible with AES3, S/PDIF, IEC 60958, and EIAJ CP-1201 digital audio interfaces.
PH73311L_VC1/PH73311LQ_VC1 provides multiple input/output modes, including USB input/I²S output and USB input/S/PDIF output, meeting the requirements of different application scenarios.
!!! warning "Important Note"
**The PH73311LQ_VC1 model supports MQA audio decoding, while the PH73311L_VC1 model does not support this feature.**
### 1.2 Product Features
**Audio Performance Features**
- Supports input and output sampling rates up to 384kHz
- Supports DSD64/128/256 formats
- **PH73311LQ_VC1 supports MQA decoding**
- Built-in SSRC and ASRC modules, supporting conversion between different interfaces and sampling rates
- SSRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 140dB
- ASRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 135dB
- Supports 16-32bit audio data formats
**Interface Support Features**
- **Multiple Digital Interface Support**
- Supports USB audio input
- Supports I²S master mode audio output
- Supports S/PDIF audio output
- Supports UART configuration interface
**USB Features**
- **USB Interface Features**
- Supports UAC 1.0
- Supports UAC 2.0
- Supports firmware upgrade via USB
- Supports HID, allowing MCU firmware upgrade via HID
**System Compatibility**
- UAC 2.0 protocol, supports ASIO
- Supports multiple operating systems, such as Windows, Linux, Android, macOS, and iOS
### 1.3 Application Scenarios
- USB Low-Power HiFi Decoder (USB Portable HiFi Decoder)
- USB Low-Power Digital Audio Interface (USB Portable HiFi Audio Interface)
- USB Low-Power HiFi Audio Solution (USB Portable HiFi Audio Solution)
### 1.4 Product Function Block Diagram
<figure markdown="span">
![PH73311L Block Diagram](/assets/images/hifi_audio/ph73311l_diagram.png "PH73311L Block Diagram"){width="600"}
<figcaption>Figure 1: PH73311L_VC1/PH73311LQ_VC1 Product Function Block Diagram</figcaption>
</figure>
### 1.5 Ordering Information
| PRODUCT | ORDERING NUMBER | PACKAGE BODY | SIZE (NOM) | Hardware Model | Comments |
|:--------|:----------------|:-------------|:-----------|:------------|:------------|
| PH73311L_VC1 | PH73311L-VC1 | SMT STAMP-30 | 13x13mm | A316-Mini-V1 | |
| PH73311LQ_VC1 | PH73311LQ-VC1 | SMT STAMP-30 | 13x13mm | A316-Mini-V1 | **Supports MQA decoding**|
## 2. Modes and Specifications
### 2.1 Supported Input/Output Modes
| Mode Number | Input/Output Mode | Description |
|:--------:|:------------------------|:------------------------|
| 1 | USB(UAC2.0) in-I²S(Master) out | USB input, I²S output, UAC2.0, maximum support for 384KHz/DSD256 |
| 2 | USB(UAC1.0) in-I²S(Master) out | USB input, I²S output, UAC1.0, fixed at 48KHz |
| 3 | USB IN(UAC2.0)-SPDIF OUT | USB input, S/PDIF output, UAC2.0, maximum input 384KHz, output 192KHz |
### 2.2 Detailed Parameters for Each Operating Mode
#### 2.2.1 USB(UAC2.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz |
| **DSD Native** | DSD64, DSD128, DSD256 |
| **DOP** | DOP64, DOP128, DOP256 |
| **MQA** | Only supported by PH73311LQ_VC1 |
#### 2.2.2 USB(UAC1.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
#### 2.2.3 USB(UAC2.0) in → S/PDIF out Mode
**Input/Output Sampling Rate Support:**
| Interface | Audio Format | Supported Sampling Rates |
|:-----|:---------|:-------------|
| **USB Input** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz |
| **S/PDIF Output** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
**SSRC (Synchronous Sample Rate Conversion) Function:**
* Input sampling rate ≤ 192kHz: Output at original sampling rate
* Input sampling rate > 192kHz: Output at 192kHz after SSRC conversion
**SSRC Performance Specifications:**
* THD+N (@1kHz, 0dBFs): ≤-130dB
* SNR: ≥140dB
#### 2.2.4 USB(UAC1.0) in → S/PDIF out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
## 3. Pin Configuration and Function
### 3.1 PH73311L_VC1/PH73311LQ_VC1 Pin Layout
<figure markdown="span">
![PH73311L-VC1 Pin Diagram](/assets/images/hifi_audio/a316_pin.png "PH73311L-VC1 Pin Diagram"){width=400}
<figcaption>Figure 2: PH73311L-VC1 Pin Layout Diagram</figcaption>
</figure>
### 3.2 PH73311L_VC1/PH73311LQ_VC1 Pin Description
| Module Pin Number | Name | Type | Function |
| :------: | :------: | :------: | :------ |
| 1 | 3.3V | P | Module 3.3V power supply |
| 2 | X1D13 | I/O | Multi-function GPIO |
| 3 | X1D16 | I/O | Multi-function GPIO |
| 4 | GND | P | Module ground |
| 5 | X1D17 | I/O | Multi-function GPIO |
| 6 | X1D18 | I/O | Multi-function GPIO |
| 7 | X1D19 | I/O | Multi-function GPIO |
| 8 | X1D22 | I/O | Multi-function GPIO |
| 9 | X0D29 | I/O | Multi-function GPIO |
| 10 | X0D35 | I/O | Multi-function GPIO |
| 11 | X0D36 | I/O | Multi-function GPIO |
| 12 | X0D37 | I/O | Multi-function GPIO |
| 13 | X0D38 | I/O | Multi-function GPIO |
| 14 | X0D40 | I/O | Multi-function GPIO |
| 15 | X0D39 | I/O | Multi-function GPIO |
| 16 | X0D42 | I/O | Multi-function GPIO |
| 17 | X0D41 | I/O | Multi-function GPIO |
| 18 | X0D43 | I/O | Multi-function GPIO |
| 19 | X1D34 | I/O | Multi-function GPIO |
| 20 | GND | P | Module ground |
| 21 | X0D30 | I/O | Multi-function GPIO |
| 22 | X0D31 | I/O | Multi-function GPIO |
| 23 | X0D32 | I/O | Multi-function GPIO |
| 24 | X0D32 | I/O | Multi-function GPIO |
| 25 | GND | P | Module ground |
| 26 | GND | P | Module ground |
| 27 | GND | P | Module ground |
| 28 | X0D00 | I/O | Multi-function GPIO |
| 29 | X0D11 | I/O | Multi-function GPIO |
| 30 | X1D00 | I/O | Multi-function GPIO |
| 31 | X1D01 | I/O | Multi-function GPIO |
| 32 | GND | P | Module ground |
| 33 | X1D09 | I/O | Multi-function GPIO |
| 34 | X1D10 | I/O | Multi-function GPIO |
| 35 | X1D11 | I/O | Multi-function GPIO/XU316 internal clock output |
| 36 | GND | P | Module ground |
| 37 | GND | P | Module ground |
| 38 | TDI | I/O | Multi-function GPIO |
| 39 | TDO | I/O | Multi-function GPIO |
| 40 | TMS | I/O | Multi-function GPIO |
| 41 | TCK | I/O | Multi-function GPIO |
| 42 | RST_N | I/O | Multi-function GPIO |
| 43 | 1.8V | P | Module 1.8V power supply |
| 44 | GND | P | Module ground |
| 45 | USB_DM | I/O | USB_DM |
| 46 | USB_DP | I/O | USB_DP |
| 47 | GND | P | Module ground |
| 48 | 0.9V | P | Module 0.9V power supply |
| 49 | GND | P | Module ground |
| 50 | GND | P | Module ground |
| 51 | GND | P | Module ground |
| 52 | GND | P | Module ground |
!!! info "Pin Type Description"
- I/O type definitions in the table: I=Input, O=Output, P=Power, I/O=Input/Output
## 4. Revision History
| Version | Date | Description | Revised by |
|:------|:-------------|:---------------------------------------|:-------------|
| V1.0 | 2025-05-07 | Initial version release | |
| | | | |
| | | | |

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---
title: PH83211L_VC1/PH83211LQ_VC1 768KHz/DSD512 USB Low-Power HiFi Audio Decoder
description: PH83211L_VC1/PH83211LQ_VC1 Low-Power Audio Decoder Technical Documentation
author: Technical Documentation Department
date: 2025-05-07
print_page: true
tags:
- Audio Decoder
- XMOS
- USB HiFi
- MQA
---
# PH83211L_VC1/PH83211LQ_VC1 768KHz/DSD512 USB Low-Power HiFi Audio Decoder
--8<-- "common/phaten_xmos_support_img.md"
## 1. Introduction
### 1.1 Product Description
PH83211L_VC1/PH83211LQ_VC1 is a USB low-power HiFi audio decoder supporting up to PCM 768KHz/DSD512, specifically designed for portable HiFi decoder audio applications.
PH83211L_VC1/PH83211LQ_VC1 supports multiple standard audio formats, including USB Audio Class 1.0/2.0 and I²S interface. The flexible audio interface allows PH83211L_VC1/PH83211LQ_VC1 to connect to various audio data converters, digital audio receivers and transmitters, as well as digital signal processors.
PH83211L_VC1/PH83211LQ_VC1 provides USB input/I²S output mode, meeting the requirements of high-quality audio application scenarios.
!!! warning "Important Note"
**The PH83211LQ_VC1 model supports MQA audio decoding, while the PH83211L_VC1 model does not support this feature.**
### 1.2 Product Features
**Audio Performance Features**
- Supports input and output sampling rates up to 768kHz
- Supports DSD64/128/256/512 formats
- **PH83211LQ_VC1 supports MQA decoding**
- Built-in SSRC module, supporting conversion between different interfaces and sampling rates
- SSRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 140dB
- Supports 16-32bit audio data formats
**Interface Support Features**
- **Multiple Digital Interface Support**
- Supports USB audio input
- Supports I²S master mode audio output
- Supports UART configuration interface
**USB Features**
- **USB Interface Features**
- Supports UAC 1.0
- Supports UAC 2.0
- Supports firmware upgrade via USB
- Supports HID, allowing MCU firmware upgrade via HID
**System Compatibility**
- UAC 2.0 protocol, supports ASIO
- Supports multiple operating systems, such as Windows, Linux, Android, macOS, and iOS
### 1.3 Application Scenarios
- USB Low-Power HiFi Decoder (USB Portable HiFi Decoder)
### 1.4 Product Function Block Diagram
<figure markdown="span">
![PH83211L Block Diagram](/assets/images/hifi_audio/ph83211l_diagram.png "PH83211L Block Diagram"){width="600"}
<figcaption>Figure 1: PH83211L_VC1/PH83211LQ_VC1 Product Function Block Diagram</figcaption>
</figure>
### 1.5 Ordering Information
| PRODUCT | ORDERING NUMBER | PACKAGE BODY | SIZE (NOM) | Hardware Model | Comments |
|:--------|:----------------|:-------------|:-----------|:------------|:------------|
| PH83211L_VC1 | PH83211L-VC1 | SMT STAMP-30 | 13x13mm | A316-Mini-V1 | |
| PH83211LQ_VC1 | PH83211LQ-VC1 | SMT STAMP-30 | 13x13mm | A316-Mini-V1 | **Supports MQA decoding**|
## 2. Modes and Specifications
### 2.1 Supported Input/Output Modes
| Mode Number | Input/Output Mode | Description |
|:--------:|:------------------------|:------------------------|
| 1 | USB(UAC2.0) in-I²S(Master) out | USB input, I²S output, UAC2.0 |
| 2 | USB(UAC1.0) in-I²S(Master) out | USB input, I²S output, UAC1.0 |
### 2.2 Detailed Parameters for Each Operating Mode
#### 2.2.1 USB(UAC2.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768KHz |
| **DSD Native** | DSD64, DSD128, DSD256, DSD512 |
| **DOP** | DOP64, DOP128, DOP256 |
| **MQA** | Only supported by PH83211LQ_VC1 |
#### 2.2.2 USB(UAC1.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
## 3. Pin Configuration and Function
### 3.1 PH83211L_VC1/PH83211LQ_VC1 Pin Layout
<figure markdown="span">
![PH83211L-VC1 Pin Diagram](/assets/images/hifi_audio/a316_pin.png "PH83211L-VC1 Pin Diagram"){width=400}
<figcaption>Figure 2: PH83211L-VC1 Pin Layout Diagram</figcaption>
</figure>
### 3.2 PH83211L_VC1/PH83211LQ_VC1 Pin Description
| Module Pin Number | Name | Type | Function |
| :------: | :------: | :------: | :------ |
| 1 | 3.3V | P | Module 3.3V power supply |
| 2 | X1D13 | I/O | Multi-function GPIO |
| 3 | X1D16 | I/O | Multi-function GPIO |
| 4 | GND | P | Module ground |
| 5 | X1D17 | I/O | Multi-function GPIO |
| 6 | X1D18 | I/O | Multi-function GPIO |
| 7 | X1D19 | I/O | Multi-function GPIO |
| 8 | X1D22 | I/O | Multi-function GPIO |
| 9 | X0D29 | I/O | Multi-function GPIO |
| 10 | X0D35 | I/O | Multi-function GPIO |
| 11 | X0D36 | I/O | Multi-function GPIO |
| 12 | X0D37 | I/O | Multi-function GPIO |
| 13 | X0D38 | I/O | Multi-function GPIO |
| 14 | X0D40 | I/O | Multi-function GPIO |
| 15 | X0D39 | I/O | Multi-function GPIO |
| 16 | X0D42 | I/O | Multi-function GPIO |
| 17 | X0D41 | I/O | Multi-function GPIO |
| 18 | X0D43 | I/O | Multi-function GPIO |
| 19 | X1D34 | I/O | Multi-function GPIO |
| 20 | GND | P | Module ground |
| 21 | X0D30 | I/O | Multi-function GPIO |
| 22 | X0D31 | I/O | Multi-function GPIO |
| 23 | X0D32 | I/O | Multi-function GPIO |
| 24 | X0D32 | I/O | Multi-function GPIO |
| 25 | GND | P | Module ground |
| 26 | GND | P | Module ground |
| 27 | GND | P | Module ground |
| 28 | X0D00 | I/O | Multi-function GPIO |
| 29 | X0D11 | I/O | Multi-function GPIO |
| 30 | X1D00 | I/O | Multi-function GPIO |
| 31 | X1D01 | I/O | Multi-function GPIO |
| 32 | GND | P | Module ground |
| 33 | X1D09 | I/O | Multi-function GPIO |
| 34 | X1D10 | I/O | Multi-function GPIO |
| 35 | X1D11 | I/O | Multi-function GPIO/XU316 internal clock output |
| 36 | GND | P | Module ground |
| 37 | GND | P | Module ground |
| 38 | TDI | I/O | Multi-function GPIO |
| 39 | TDO | I/O | Multi-function GPIO |
| 40 | TMS | I/O | Multi-function GPIO |
| 41 | TCK | I/O | Multi-function GPIO |
| 42 | RST_N | I/O | Multi-function GPIO |
| 43 | 1.8V | P | Module 1.8V power supply |
| 44 | GND | P | Module ground |
| 45 | USB_DM | I/O | USB_DM |
| 46 | USB_DP | I/O | USB_DP |
| 47 | GND | P | Module ground |
| 48 | 0.9V | P | Module 0.9V power supply |
| 49 | GND | P | Module ground |
| 50 | GND | P | Module ground |
| 51 | GND | P | Module ground |
| 52 | GND | P | Module ground |
!!! info "Pin Type Description"
- I/O type definitions in the table: I=Input, O=Output, P=Power, I/O=Input/Output
## 4. Revision History
| Version | Date | Description | Revised by |
|:------|:-------------|:---------------------------------------|:-------------|
| V1.0 | 2025-05-07 | Initial version release | |
| | | | |
| | | | |

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---
title: PH83311L_VC1/PH83311LQ_VC1 768KHz/DSD512 USB Low-Power HiFi Audio Decoder
description: PH83311L_VC1/PH83311LQ_VC1 Low-Power Audio Decoder Technical Documentation
author: Technical Documentation Department
date: 2025-05-07
print_page: true
tags:
- Audio Decoder
- XMOS
- USB HiFi
- MQA
---
# PH83311L_VC1/PH83311LQ_VC1 768KHz/DSD512 USB Low-Power HiFi Audio Decoder
--8<-- "common/phaten_xmos_support_img.md"
## 1. Introduction
### 1.1 Product Description
PH83311L_VC1/PH83311LQ_VC1 is a USB low-power HiFi audio decoder supporting up to PCM 768KHz/DSD512, specifically designed for portable HiFi decoder audio applications.
PH83311L_VC1/PH83311LQ_VC1 supports multiple standard audio formats, including USB Audio Class 1.0/2.0, S/PDIF, and I²S interfaces. The flexible audio interface allows PH83311L_VC1/PH83311LQ_VC1 to connect to various audio data converters, digital audio receivers and transmitters, as well as digital signal processors.
Compatible with AES3, S/PDIF, IEC 60958, and EIAJ CP-1201 digital audio interfaces.
PH83311L_VC1/PH83311LQ_VC1 provides multiple input/output modes, including USB input/I²S output and USB input/S/PDIF output, meeting the requirements of different application scenarios.
!!! warning "Important Note"
**The PH83311LQ_VC1 model supports MQA audio decoding, while the PH83311L_VC1 model does not support this feature.**
### 1.2 Product Features
**Audio Performance Features**
- Supports input and output sampling rates up to 768kHz
- Supports DSD64/128/256/512 formats
- **PH83311LQ_VC1 supports MQA decoding**
- Built-in SSRC module, supporting conversion between different interfaces and sampling rates
- SSRC specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 140dB
- Supports 16-32bit audio data formats
**Interface Support Features**
- **Multiple Digital Interface Support**
- Supports USB audio input
- Supports I²S master mode audio output
- Supports S/PDIF audio output
- Supports UART configuration interface
**USB Features**
- **USB Interface Features**
- Supports UAC 1.0
- Supports UAC 2.0
- Supports firmware upgrade via USB
- Supports HID, allowing MCU firmware upgrade via HID
**System Compatibility**
- UAC 2.0 protocol, supports ASIO
- Supports multiple operating systems, such as Windows, Linux, Android, macOS, and iOS
### 1.3 Application Scenarios
- USB Low-Power HiFi Decoder (USB Portable HiFi Decoder)
### 1.4 Product Function Block Diagram
<figure markdown="span">
![PH83311L Block Diagram](/assets/images/hifi_audio/ph83311l_diagram.png "PH83311L Block Diagram"){width="600"}
<figcaption>Figure 1: PH83311L_VC1/PH83311LQ_VC1 Product Function Block Diagram</figcaption>
</figure>
### 1.5 Ordering Information
| PRODUCT | ORDERING NUMBER | PACKAGE BODY | SIZE (NOM) | Hardware Model | Comments |
|:--------|:----------------|:-------------|:-----------|:------------|:------------|
| PH83311L_VC1 | PH83311L-VC1 | SMT STAMP-30 | 13x13mm | A316-Mini-V1 | |
| PH83311LQ_VC1 | PH83311LQ-VC1 | SMT STAMP-30 | 13x13mm | A316-Mini-V1 | **Supports MQA decoding**|
## 2. Modes and Specifications
### 2.1 Supported Input/Output Modes
| Mode Number | Input/Output Mode | Description |
|:--------:|:------------------------|:------------------------|
| 1 | USB(UAC2.0) in-I²S(Master) out | USB input, I²S output, UAC2.0 |
| 2 | USB(UAC1.0) in-I²S(Master) out | USB input, I²S output, UAC1.0 |
| 3 | USB IN(UAC2.0)-SPDIF OUT | USB input, S/PDIF output, UAC2.0 |
### 2.2 Detailed Parameters for Each Operating Mode
#### 2.2.1 USB(UAC2.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768KHz |
| **DSD Native** | DSD64, DSD128, DSD256, DSD512 |
| **DOP** | DOP64, DOP128, DOP256 |
| **MQA** | Only supported by PH83311LQ_VC1 |
#### 2.2.2 USB(UAC1.0) in → I²S out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
#### 2.2.3 USB(UAC2.0) in → S/PDIF out Mode
**Input/Output Sampling Rate Support:**
| Interface | Audio Format | Supported Sampling Rates |
|:-----|:---------|:-------------|
| **USB Input** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz |
| **S/PDIF Output** | PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
**SSRC (Synchronous Sample Rate Conversion) Function:**
* Input sampling rate ≤ 192kHz: Output at original sampling rate
* Input sampling rate > 192kHz: Output at 192kHz after SSRC conversion
**SSRC Performance Specifications:**
* THD+N (@1kHz, 0dBFs): ≤-130dB
* SNR: ≥140dB
#### 2.2.4 USB(UAC1.0) in → S/PDIF out Mode
**Supported Audio Formats and Sampling Rates:**
| Audio Format | Supported Sampling Rates |
|:---------|:-------------|
| **PCM** | 48kHz |
## 3. Pin Configuration and Function
### 3.1 PH83311L_VC1/PH83311LQ_VC1 Pin Layout
<figure markdown="span">
![PH83311L-VC1 Pin Diagram](/assets/images/hifi_audio/a316_pin.png "PH83311L-VC1 Pin Diagram"){width=400}
<figcaption>Figure 2: PH83311L-VC1 Pin Layout Diagram</figcaption>
</figure>
### 3.2 PH83311L_VC1/PH83311LQ_VC1 Pin Description
| Module Pin Number | Name | Type | Function |
| :------: | :------: | :------: | :------ |
| 1 | 3.3V | P | Module 3.3V power supply |
| 2 | X1D13 | I/O | Multi-function GPIO |
| 3 | X1D16 | I/O | Multi-function GPIO |
| 4 | GND | P | Module ground |
| 5 | X1D17 | I/O | Multi-function GPIO |
| 6 | X1D18 | I/O | Multi-function GPIO |
| 7 | X1D19 | I/O | Multi-function GPIO |
| 8 | X1D22 | I/O | Multi-function GPIO |
| 9 | X0D29 | I/O | Multi-function GPIO |
| 10 | X0D35 | I/O | Multi-function GPIO |
| 11 | X0D36 | I/O | Multi-function GPIO |
| 12 | X0D37 | I/O | Multi-function GPIO |
| 13 | X0D38 | I/O | Multi-function GPIO |
| 14 | X0D40 | I/O | Multi-function GPIO |
| 15 | X0D39 | I/O | Multi-function GPIO |
| 16 | X0D42 | I/O | Multi-function GPIO |
| 17 | X0D41 | I/O | Multi-function GPIO |
| 18 | X0D43 | I/O | Multi-function GPIO |
| 19 | X1D34 | I/O | Multi-function GPIO |
| 20 | GND | P | Module ground |
| 21 | X0D30 | I/O | Multi-function GPIO |
| 22 | X0D31 | I/O | Multi-function GPIO |
| 23 | X0D32 | I/O | Multi-function GPIO |
| 24 | X0D32 | I/O | Multi-function GPIO |
| 25 | GND | P | Module ground |
| 26 | GND | P | Module ground |
| 27 | GND | P | Module ground |
| 28 | X0D00 | I/O | Multi-function GPIO |
| 29 | X0D11 | I/O | Multi-function GPIO |
| 30 | X1D00 | I/O | Multi-function GPIO |
| 31 | X1D01 | I/O | Multi-function GPIO |
| 32 | GND | P | Module ground |
| 33 | X1D09 | I/O | Multi-function GPIO |
| 34 | X1D10 | I/O | Multi-function GPIO |
| 35 | X1D11 | I/O | Multi-function GPIO/XU316 internal clock output |
| 36 | GND | P | Module ground |
| 37 | GND | P | Module ground |
| 38 | TDI | I/O | Multi-function GPIO |
| 39 | TDO | I/O | Multi-function GPIO |
| 40 | TMS | I/O | Multi-function GPIO |
| 41 | TCK | I/O | Multi-function GPIO |
| 42 | RST_N | I/O | Multi-function GPIO |
| 43 | 1.8V | P | Module 1.8V power supply |
| 44 | GND | P | Module ground |
| 45 | USB_DM | I/O | USB_DM |
| 46 | USB_DP | I/O | USB_DP |
| 47 | GND | P | Module ground |
| 48 | 0.9V | P | Module 0.9V power supply |
| 49 | GND | P | Module ground |
| 50 | GND | P | Module ground |
| 51 | GND | P | Module ground |
| 52 | GND | P | Module ground |
!!! info "Pin Type Description"
- I/O type definitions in the table: I=Input, O=Output, P=Power, I/O=Input/Output
## 4. Revision History
| Version | Date | Description | Revised by |
|:------|:-------------|:---------------------------------------|:-------------|
| V1.0 | 2025-05-07 | Initial version release | |
| | | | |
| | | | |

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---
title: OT82111_VC1 USB1.0 to I²S(Slave) Audio Decoder
description: OT82111_VC1 Audio Decoder Technical Documentation
author: Technical Documentation Department
date: 2025-05-14
print_page: true
---
# OT82111_VC1 USB1.0 to I²S(Slave) Audio Decoder
--8<-- "common/phaten_xmos_support_img.md"
## 1. Introduction
### 1.1 Product Description
OT82111_VC1 is a USB1.0 to I²S(Slave) audio decoder designed for simplified HiFi audio applications. This product is developed based on the a316-mini-v1 module, providing fixed input format (PCM48KHz/16bit) and flexible output formats (PCM:44.1KHz-192KHz/32bit).
OT82111_VC1 uses USB Audio Class 1.0 interface as input and I²S(Slave) interface as output, suitable for applications requiring stable low-latency audio transmission. Through its simplified design, this product offers a cost-effective audio solution while maintaining excellent audio performance.
### 1.2 Product Features
**Audio Performance Characteristics**
- Fixed input format: PCM 48kHz/16bit
- Flexible output format: PCM 44.1kHz-192kHz/32bit
- Supports high-precision audio transmission
- Low-latency audio processing
- Supports 16-32bit audio data formats
**Interface Support Features**
- **Digital Interface Support**
- Supports USB1.0 audio input
- Supports I²S slave mode audio output
- Supports UART configuration interface
**USB Functionality**
- **USB Interface Features**
- Supports UAC 1.0
- Supports firmware upgrade via USB
- Compatible with USB Full Speed mode
**System Compatibility**
- UAC 1.0 protocol, plug-and-play
- Supports multiple operating systems such as Windows, Linux, Android, macOS, and iOS
- No special drivers required
### 1.3 Application Scenarios
- Entry-level USB audio decoder
- Portable USB audio interface
- Low-cost digital audio solution
- Smart audio peripherals
- Audio educational equipment
### 1.4 Product Function Diagram
<figure markdown="span">
![OT82111 Diagram](/assets/images/hifi_audio/ot82111_diagram.png "OT82111 Diagram"){width="600"}
<figcaption>Figure 1: OT82111_VC1 Function Diagram</figcaption>
</figure>
### 1.5 Ordering Information
| PRODUCT | ORDERING NUMBER | PACKAGE BODY | SIZE (NOM) | Hardware Model | Comments |
|:--------|:----------------|:-------------|:-----------|:------------|:------------|
| OT82111_VC1 | OT82111-VC1 | SMT LGA-52 | 13x13mm | A316-Mini-V1 | Fixed input PCM48KHz/16bit, output PCM:44.1KHz-192KHz/32bit |
## 2. Modes and Specifications
### 2.1 Supported Input/Output Modes
| Mode Number | Input/Output Mode | Description |
|:--------:|:------------------------|:------------------------|
| 1 | USB(UAC1.0) in-I²S(SLAVE) out | USB input, I²S(Slave) output, UAC1.0 |
### 2.2 Detailed Parameters for Each Operating Mode
#### 2.2.1 USB(UAC1.0) in → I²S(SLAVE) out Mode
**Input/Output Parameters:**
| Parameter | Input | Output |
|:---------|:-------------|:-------------|
| **Interface** | USB Audio Class 1.0 | I²S(Slave) |
| **Audio Format** | PCM | PCM |
| **Sampling Rate** | Fixed 48kHz | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
| **Bit Depth** | Fixed 16bit | 16bit, 24bit, 32bit |
**Clock Characteristics:**
* I²S interface operates in slave mode, requiring external MCLK, BCLK, and LRCK clock signals
* Supports 44.1kHz and 48kHz series sampling rates (i.e., 44.1kHz, 88.2kHz, 176.4kHz and 48kHz, 96kHz, 192kHz)
* Supports automatic clock detection and matching
**Audio Performance Metrics:**
* THD+N (@1kHz, 0dBFs): ≤-100dB
* SNR: ≥110dB
* Dynamic Range: ≥110dB
## 3. Pin Configuration and Functions
### 3.1 OT82111_VC1 Pin Layout
<figure markdown="span">
![OT82111-VC1 Pin Diagram](/assets/images/hifi_audio/a316_pin.png "OT82111-VC1 Pin Diagram"){width=400}
<figcaption>Figure 2: OT82111_VC1 Pin Arrangement Diagram</figcaption>
</figure>
### 3.2 OT82111_VC1 Pin Description
| Pin Number | Name | Type | Function |
|:--------:|:----------|:------|:-----------------------------|
| 1 | 3.3V | P | Module 3.3V power supply |
| 2 | X1D13 | I/O | NC |
| 3 | X1D16 | I/O | NC |
| 4 | GND | P | Module ground |
| 5 | X1D17 | I/O | NC |
| 6 | X1D18 | I/O | NC |
| 7 | X1D19 | I/O | NC |
| 8 | X1D22 | I/O | NC |
| 9 | X0D29 | I/O | NC |
| 10 | X0D35 | I | I²S_IN_SCLK(SLAVE) |
| 11 | X0D36 | I | I²S_IN_LRCLK(SLAVE) |
| 12 | X0D37 | I/O | NC |
| 13 | X0D38 | O | I²S_OUT_DATA0(SLAVE) |
| 14 | X0D40 | I/O | NC |
| 15 | X0D39 | I | I²S_IN_MCLK(SLAVE) |
| 16 | X0D42 | I/O | NC |
| 17 | X0D41 | I/O | NC |
| 18 | X0D43 | I/O | NC |
| 19 | X1D34 | I/O | NC |
| 20 | GND | P | Module ground |
| 21 | X0D30 | I/O | NC |
| 22 | X0D31 | I/O | NC |
| 23 | X0D32 | I/O | NC |
| 24 | X0D32 | I/O | NC |
| 25 | GND | P | Module ground |
| 26 | GND | P | Module ground |
| 27 | GND | P | Module ground |
| 28 | X0D00 | I/O | UART_TX, connect to MCU_RX |
| 29 | X0D11 | I/O | UART_RX, connect to MCU_TX |
| 30 | X1D00 | I/O | NC |
| 31 | X1D01 | I/O | NC |
| 32 | GND | P | Module ground |
| 33 | X1D09 | I/O | NC |
| 34 | X1D10 | I/O | NC |
| 35 | X1D11 | I/O | XU316 internal clock output |
| 36 | GND | P | Module ground |
| 37 | GND | P | Module ground |
| 38 | TDI | I/O | XTAG debug PIN |
| 39 | TDO | I/O | XTAG debug PIN |
| 40 | TMS | I/O | XTAG debug PIN |
| 41 | TCK | I/O | XTAG debug PIN |
| 42 | RST_N | I/O | System reset, active low |
| 43 | 1.8V | P | Module 1.8V power supply |
| 44 | GND | P | Module ground |
| 45 | USB_DM | I/O | USB_DM |
| 46 | USB_DP | I/O | USB_DP |
| 47 | GND | P | Module ground |
| 48 | 0.9V | P | Module 0.9V power supply |
| 49 | GND | P | Module ground |
| 50 | GND | P | Module ground |
| 51 | GND | P | Module ground |
| 52 | GND | P | Module ground |
!!! info "Pin Type Description"
I/O types defined in the table: I=Input, O=Output, P=Power, I/O=Input/Output
## 4. Revision History
| Version | Date | Description | Revised by |
|:------|:-------------|:---------------------------------------|:-------------|
| V1.0 | 2025-05-14 | Initial version release | |
| | | | |
| | | | |