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---
title: AH86G11-VC1 16-in/16-out TDM256 USB Multi-channel Digital Audio Interface Core Module
description: AH86G11-VC1 16-in/16-out TDM256 USB Multi-channel Digital Audio Interface Core Module Datasheet
author: Technical Documentation Department
date: 2026-06-16
print_page: true
---
--8<-- "common/phaten_xmos_support_img.md"
<div class="grid" markdown>
<div class="cardwide" markdown>
# AH86G11-VC1
__16-in/16-out TDM256 Slave 48kHz / 24bit·32bit USB Multi-channel Digital Audio Interface__
</div>
</div>
## 1. Introduction
### 1.1 Product Description
AH86G11 is a **USB multi-channel digital audio interface core module** based on the xcore.ai (XMOS) multi-core architecture, designed for audio front-end applications that interconnect with an external DSP in digital mixing consoles / multi-channel mixing systems. AH86G11 connects to a host (PC / Mac) via a **USB Audio Interface (UAC)**, and externally provides a **16-channel input / 16-channel output** TDM digital audio interface to interconnect with a DSP. It adopts the **TDM256 frame format (8 channels per data line)**, implementing 16-in / 16-out through 2 input data lines and 2 output data lines.
AH86G11 operates in Slave mode with a fixed sampling rate of 48kHz, and supports 24bit / 32bit audio data bit depths: USB supports 48K 24bit/32bit, while TDM supports only 32bit. The clock is **provided by the external DSP**: the DSP outputs the bit clock `BCLK` (`I2S0_SCLK`) and the frame sync `FS` (`I2S0_LRCLK`) to AH86G11, and AH86G11 operates as a clock slave.
<!-- !!! info "Clock Relationship"
At 48kHz / TDM256 configuration, each frame is 256 bit, and each data line carries 8 × 32bit channels.
- `FS` (LRCLK) = 48kHz
- `BCLK` (SCLK) = 48kHz × 256 = **12.288MHz**
- Each TDM256 data line = 8 channels; 2 input lines = 16-in, 2 output lines = 16-out
- `MCLK`: Optional; if the DSP does not provide MCLK separately, the user may connect AH86G11's MCLK to BCLK (MCLK = BCLK = 12.288MHz) -->
### 1.2 Product Features
**Audio Interface Features**
- **USB Audio Interface (UAC)**: Multi-channel USB audio interface connecting to a host (PC / Mac), 48kHz / 24bit·32bit
- **TDM256 Multi-channel Interface**: 16-in / 16-out, 2 TDM256 input data lines (16 channels) + 2 TDM256 output data lines (16 channels), 8 channels per data line
- **Sampling Rate**: Fixed 48kHz
- **Bit Depth**: USB supports 24bit / 32bit; TDM supports only 32bit
**Clock Features**
- **Slave Mode**: The clock is provided by the external DSP; the DSP outputs the bit clock `BCLK` (`I2S0_SCLK`) and the frame sync `FS` (`I2S0_LRCLK`), and AH86G11 operates as a clock slave
- Only 2 external clock lines: `BCLK` + `FS`
- `MCLK`: The DSP may not provide it separately; if not provided, the user may connect MCLK to BCLK (MCLK = BCLK)
### 1.3 Application Scenarios
- Digital Mixer — multi-channel audio front-end for mixing consoles, forms a mixing / effects processing chain with an external DSP, 16-in / 16-out channel routing
- Multichannel Audio Router — channel-level digital audio distribution, TDM multi-channel interconnection, signal aggregation for recording / PA systems
- Conference / PA System — multi-microphone channel aggregation, audio interface interfacing with the system DSP, fixed 48kHz engineering audio applications
### 1.4 Product Functional Block Diagram
<figure markdown="span">
![Digital Mixer Audio Interface Module Block Diagram](/assets/images/digital_mixer/digital_mixer_diagram.png "Digital Mixer Audio Interface Module Block Diagram"){width=700}
<figcaption>Figure 1: Digital Mixer Audio Interface Core Module Functional Block Diagram</figcaption>
</figure>
### 1.5 Ordering Information
| PRODUCT MODEL | ORDERING NUMBER | PACKAGE BODY | SIZE (NOM) | Hardware Model | Comments |
|:--------|:----------------|:-------------|:-----------|:------------|:------------|
| AH86G11-VC1 | AH86G11-VC1 | SMT LGA-52 | 13×13mm | A316-Mini-V1 | 16-in/16-out TDM256 USB multi-channel digital audio interface core module, 48kHz / 24bit·32bit |
## 2. Modes and Specifications
### 2.1 Supported Input and Output Modes
<!-- AH86G11 operates in a single bridging mode, implementing bidirectional 16-channel audio interconnection between the host **USB (UAC)** and the external DSP **TDM256 (Slave)**: -->
| Mode Number | Input/Output Mode | Description |
|:--------:|:------------------------|:------------------------|
| 1 | TDM256(Slave) in - USB out /<br/> USB in - TDM256(Slave) out | TDM256 input (DSP) / USB output (16 channels) /<br/> USB input (16 channels) / TDM256 output (DSP) |
### 2.2 Detailed Parameters for Each Operating Mode
#### 2.2.1 USB Audio Mode
**Audio Format and Sampling Rate:**
| Audio Format | Specification |
|:---------|:-------------|
| **USB Audio** | USB Audio Class (UAC), multi-channel |
| **Sampling Rate** | 48kHz (fixed) |
| **Bit Depth** | 24bit / 32bit |
#### 2.2.2 TDM256 Slave Mode
**Audio Format and Sampling Rate:**
| Audio Format | Specification |
|:---------|:-------------|
| **PCM / TDM** | TDM256, 8 channels per data line |
| **Sampling Rate** | 48kHz (fixed) |
| **Bit Depth** | 32bit |
| **Input Channels** | 16 (2 × TDM256 input lines) |
| **Output Channels** | 16 (2 × TDM256 output lines) |
## 3. Pin Configuration and Functions
### 3.1 Module Pin Layout
<figure markdown="span">
![A316-Mini-V1 Module Pin Diagram](/assets/images/hifi_audio/a316_pin.png "A316-Mini-V1 Module Pin Diagram"){width=400}
<figcaption>Figure 2: Digital Mixer Audio Interface Core Module (A316-Mini-V1, LGA-52) Pin Arrangement Diagram</figcaption>
</figure>
### 3.2 Module Pin Description
The module uses the **A316-Mini-V1 (SMT LGA-52, 13×13mm)** package. The physical mapping of the 52 external LGA pads to the XMOS pins is as follows:
| Pin Number | Name | Type | Function |
|:--------:|:----------|:------|:-----------------------------|
| 1 | 3.3V | P | Module 3.3V Power Supply |
| 2 | X1D13 | - | NC |
| 3 | X1D16 | - | NC |
| 4 | GND | P | Module Ground |
| 5 | X1D17 | - | NC |
| 6 | X1D18 | - | NC |
| 7 | X1D19 | - | NC |
| 8 | X1D22 | - | NC |
| 9 | X0D29 | - | NC |
| 10 | X0D35 | I (Slave) | `I2S0_SCLK` / **BCLK** |
| 11 | X0D36 | I (Slave) | `I2S0_LRCLK` / **FS** |
| 12 | X0D37 | O | `I2S0_OUT1` |
| 13 | X0D38 | O | `I2S0_OUT0` |
| 14 | X0D40 | - | NC |
| 15 | X0D39 | O | `MCLK` |
| 16 | X0D42 | - | NC |
| 17 | X0D41 | - | NC |
| 18 | X0D43 | - | NC |
| 19 | X1D34 | - | NC |
| 20 | GND | P | Module Ground |
| 21 | X0D30 | O | `CTL_MUTE` |
| 22 | X0D31 | - | NC |
| 23 | X0D32 | - | NC |
| 24 | X0D33 | - | NC |
| 25 | GND | P | Module Ground |
| 26 | GND | P | Module Ground |
| 27 | GND | P | Module Ground |
| 28 | X0D00 | I | `I2S0_IN0` |
| 29 | X0D11 | I | `I2S0_IN1` |
| 30 | X1D00 | - | NC |
| 31 | X1D01 | - | NC |
| 32 | GND | P | Module Ground |
| 33 | X1D09 | - | NC |
| 34 | X1D10 | - | NC |
| 35 | X1D11 | O | `MCLK`, connect to Pin 15 X0D39 |
| 36 | GND | P | Module Ground |
| 37 | GND | P | Module Ground |
| 38 | TDI | I/O | JTAG / XTAG Debug PIN |
| 39 | TDO | I/O | JTAG / XTAG Debug PIN |
| 40 | TMS | I/O | JTAG / XTAG Debug PIN |
| 41 | TCK | I/O | JTAG / XTAG Debug PIN |
| 42 | RST_N | I | 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 |
## 4. Hardware Specifications
### 4.1 Product Dimensions
--8<-- "dev_doc/datasheet/modules/a316_mini_v1_datasheet.md:size"
### 4.2 Module Package Diagram
<figure markdown="span">
![A316-Mini-V1 Package Diagram](/assets/images/hifi_audio/a316_size.png "A316-Mini-V1 Package Diagram"){width=400}
<figcaption>Figure 3: A316-Mini-V1 Package Diagram</figcaption>
</figure>
## 5. Minimum System Reference Design
<figure markdown="span">
![A316-Mini-V1 Minimum System Reference Design](/assets/download/a316_mini_v1/a316_mini_v1_mini_ref_design.png "A316-Mini-V1 Minimum System Reference Design"){width=800}
<figcaption></figcaption>
</figure>
## 6. Product Packaging Information
--8<-- "dev_doc/datasheet/modules/a316_mini_v1_datasheet.md:package"
## 7. Revision History
| Version | Date | Description | Revised By |
|:------|:-------------|:---------------------------------------|:-------------|
| V1.0 | 2026-06-16 | Initial release | Technical Dept. |
## 8. Consultation and Feedback
<details>
<summary>Click to expand consultation & feedback form</summary>
--8<-- "common/customer_form.md"
</details>