phaten-audio/en/docs/dev_doc/AImic/a316-codec-v20-english.md

# A316-Codec-V1 USB Microphone Module Specification
--8<-- "common/phaten_xmos_support_img.md"

<div class="result" markdown>
![A316-Codec-V1 USB Multi-Channel Audio Decoder Module](../../assets/images/hifi_audio/a316_codec_v1.png "A316-Codec-V1 USB Voice Recording and Playback Module"){align=right width=250 style="transform: rotate(90deg); margin-top: 200px;"}
<!-- <img src="/assets/images/hifi_audio/a316_codec_v1.png" alt="A316-Codec-V1 USB Multi-Channel Audio Decoder Module" style="transform: rotate(90deg); width: 250px; float: right; margin-top: 200px;" /> -->
## 1. Product Introduction
### 1.1 Product Description

- The A316-Codec-V1 is a module designed specifically for USB microphone applications, integrating the XMOS XU316 processor and the high-performance 88L21 audio codec, providing excellent audio processing capabilities.
- The module features a high-precision DC-DC power circuit that outputs 3.3V, 1.8V, and 0.9V to power the XU316, requiring only a 5V external power input, which greatly simplifies the design complexity of the application board.
- The module supports external single-ended and differential microphone inputs, and provides stereo audio output, suitable for various audio recording and playback application scenarios.
- The module is equipped with 16Mbit Flash memory for storing audio firmware and system configurations, with support for firmware upgrade functionality.
- It provides a USB 2.0 interface, supporting both full-speed and high-speed modes, implementing USB Audio device functionality, compatible with various operating systems.
</div>

### 1.2 Product Features

- **USB Interface Features**
    - USB 2.0 (Full-speed and High-speed modes)
    - USB Audio Class 1.0/2.0 support
    - USB Firmware Upgrade (DFU) functionality
    - USB MIDI Device Class 1.0 support
    - Asynchronous transfer mode, reducing clock jitter
    
- **Audio Input/Output Capabilities**
    - Integrated NAU88L21 high-performance audio codec
    - Support for single-ended and differential microphone inputs
    - High-quality stereo audio output
    - Built-in microphone preamplifier
    - Support for multiple audio interface specifications
    - 48KHz/24bit high-quality audio sampling
    
- **AI Noise Reduction**
    - Elimination of various steady-state and non-steady-state noise
    - Removal of microphone button sounds, keyboard sounds, footsteps, and other background noise
    - High-fidelity voice output
    
- **System Compatibility**
    - Support for multiple operating systems including Windows, Linux, Android, macOS, and iOS
    - Plug-and-play, no additional drivers required (UAC 2.0 compatible systems)
    - Suitable for conference systems, gaming headsets, professional recording equipment, and other applications

### 1.3 Product Block Diagram

<figure markdown="span">
  ![A316-Codec-V1 Block Diagram](../../assets/images/hifi_audio/a316_codec_v1_digram.png "A316-Codec-V1 Block Diagram"){width="600"}
  <figcaption></figcaption>
</figure>


### 1.4 Specifications
  
| Specification Item     | Description                      |
|:-----------------------|:---------------------------------|
| Product Name           | A316-Codec-V1                   |
| Product Description    | USB Microphone and Audio I/O Module |
| Core Processor         | XMOS XU316-1024-QF60BC24        |
| Audio Codec            | NAU88L21 High-Performance Codec  |
| Package Type           | Compatible with SMT and Pin Header |
| Environmental Standard | RoHS Compliant                   |

### 1.5 Absolute Electrical Parameters
| Parameter                                  | Min   | Max   | Unit |
|:-------------------------------------------|:-----:|:-----:|:----:|
| Storage Temperature                        | -40   | 125   | °C   |
| Supply Voltage                             | -0.5  | 5.5   | V    |
| ESD Voltage (Human Body Model) TAMB-25°C   | -2    | 2     | KV   |
| ESD Voltage (Machine Model) TAMB-25°C      | -500  | 500   | V    |


### 1.6 Normal Operating Conditions
| Function             | Min   | Typical | Max   | Unit |
|:---------------------|:-----:|:-------:|:-----:|:----:|
| Operating Temperature| 0     | -       | 70    | °C   |
| Operating Voltage (Module Input) | 4.75 | 5.0   | 5.25  | V    |

### 1.7 Operating Current
| Operating Status | Average | Peak | Unit |
|:-----------------|:-------:|:----:|:----:|
| Active@5.0V      | 100     | 150  | mA   |


## 2. Pin Definition

### 2.1 Pin Layout
<figure markdown="span">
  ![A316-Codec-V1 Pin Diagram](../../assets/images/hifi_audio/a316_codec_v1_pin.png "A316-Codec-V1 Pin Diagram"){width=600}
  <figcaption></figcaption>
</figure>

### 2.2 Pin Description
| Pin No. | Name      | Type  | Function                         |
|:-------:|:----------|:------|:---------------------------------|
| 1       | VBUS      | P     | 5V Power Input                   |
| 2       | GND       | P     | Module Ground                    |
| 3       | 1V8_O     | O     | 1.8V Power Output (Debug Only)   |
| 4       | TDI       | I     | XTAG Debug PIN                   |
| 5       | TDO       | O     | XTAG Debug PIN                   |
| 6       | RST       | I     | System Reset, Active Low (Internal Pull-up) |
| 7       | TMS       | I/O   | XTAG Debug PIN                   |
| 8       | TCK       | I     | XTAG Debug PIN                   |
| 9       | X1D22     | I/O   | Multi-function GPIO              |
| 10      | 3V3_O     | O     | 3.3V Power Output (Debug Only)   |
| 11      | DM        | I/O   | USB Data Negative                |
| 12      | DP        | I/O   | USB Data Positive                |
| 13      | VBUS      | P     | 5V Power Input                   |
| 14      | GND       | P     | Module Ground                    |
| 15      | GND       | P     | Module Ground                    |
| 16      | VBUS      | P     | 5V Power Input                   |
| 17      | HP_R      | O     | Headphone Right Channel Output   |
| 18      | HP_L      | O     | Headphone Left Channel Output    |
| 19      | X0D33     | I/O   | Multi-function GPIO              |
| 20      | X0D32     | I/O   | Multi-function GPIO              |
| 21      | X0D31     | I/O   | Multi-function GPIO              |
| 22      | X0D30     | I/O   | Multi-function GPIO              |
| 23      | X0D43     | I/O   | Multi-function GPIO              |
| 24      | X0D41     | I/O   | Multi-function GPIO              |
| 25      | X0D42     | I/O   | Multi-function GPIO              |
| 26      | MIC_BIAS  | O     | Microphone Bias Voltage Output   |
| 27      | MIC_P     | I     | Microphone Positive Input        |
| 28      | MIC_N     | I     | Microphone Negative Input        |

*Note: I/O type definitions: I=Input, O=Output, P=Power, I/O=Input/Output*

## 3. Module Dimensions and PCB Package Layout
### 3.1 Module Dimensions
PCB Dimensions: 18.0±0.2(L)X35.16±0.2(W)X1.0±0.1(H) mm

### 3.2 Module Package Layout
<figure markdown="span">
  ![A316-Codec-V1 Package Layout](../../assets/images/hifi_audio/a316_codec_v1_size.png "A316-Codec-V1 Package Layout"){width=600}
  <figcaption></figcaption>
</figure>

## 4. Typical Application Schematic

<figure markdown="span">
  ![A316-Codec-V1 Application Schematic](../../assets/images/hifi_audio/a316_codec_v1_application_sch.png "A316-Codec-V1 Application Schematic"){width=600}
  <figcaption></figcaption>
</figure>

This schematic shows the typical connection method of the A316-Codec-V1 module in USB microphone applications. The module connects to a host device (such as a computer or mobile phone) via USB interface, enabling bidirectional digital audio transmission. Externally, only a 5V power input is needed, with the module's internal DC-DC power management circuit automatically converting to the working voltages required by the XU316 and 88L21. The microphone input port supports connection to single-ended or differential microphones, and the stereo output can connect to headphones. The integrated high-performance codec ensures audio quality while simplifying external circuit design.

## 5. Product Packaging Information
Tray + Outer Box Packaging

## 6. Recommended Reflow Soldering Temperature Profile
<figure markdown="span">
  ![Recommended Reflow Soldering Temperature Profile](../../assets/images/hifi_audio/module_smt_temp.png "Recommended Reflow Soldering Temperature Profile"){width=600}
  <figcaption></figcaption>
</figure>

## Consultation and Feedback

<details>
<summary>Click to expand consultation feedback form</summary>

--8<-- "common/customer_form.md"

</details>