SLAU904A October   2023  – December 2023

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Setup
    2. 2.2 AC-MB Settings
      1. 2.2.1 Audio Serial Interface Settings
        1. 2.2.1.1 USB Mode
        2. 2.2.1.2 Optical or Auxiliary Analog Audio Input Mode
        3. 2.2.1.3 External Audio Interface Mode
      2. 2.2.2 AC-MB Power Supply
    3. 2.3 TAx5x42EVM-K Hardware Settings
      1. 2.3.1 TAx5x42 EVM Input Hardware Settings
        1. 2.3.1.1 Line Inputs
        2. 2.3.1.2 On-board Microphone Input
      2. 2.3.2 TAx5x42 EVM Output Hardware Settings
        1. 2.3.2.1 TAx5x42 Analog Audio Output
      3. 2.3.3 Multi-Function Hardware Configurations
        1. 2.3.3.1 MD0 Hardware Configurations
        2. 2.3.3.2 MD1 and MD2 Hardware Configurations
        3. 2.3.3.3 MD3 Hardware Configurations
        4. 2.3.3.4 MD4 and MD5 Hardware Configurations
        5. 2.3.3.5 MD6 (DIN/DOUT) Hardware Configuration
  9. 3Software
    1. 3.1 System Overview
    2. 3.2 Configuration Example
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials (BOM)
      1. 4.3.1 TAC5242 EVM Bill of Materials
      2. 4.3.2 TAC5142 EVM Bill of Materials
      3. 4.3.3 TAA5242 EVM Bill of Materials
      4. 4.3.4 TAD5242 EVM Bill of Materials
      5. 4.3.5 TAD5142 EVM Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6References
  13. 7Revision History

2.2.1.2 Optical or Auxiliary Analog Audio Input Mode

Serial interface signals are provided from the PCM9211 digital transceiver, which is capable of sending digital data to the EVM from an analog input or optical input. Meanwhile, the data from the EVM can be streamed through the optical output.

Figure 2-4 shows the AC-MB audio setting for the optical and analog mode of operation.

GUID-20230507-SS0I-KVMC-XSNQ-M8LPFQMCPCC2-low.pngFigure 2-4 AC-MB Optical or Auxiliary Analog Audio Input Setting

The optical output of the AC-MB streams the data captured on the EVM with the format determined by the input source used. When there is an optical input connected, the LOCK LED must be ON, and the PCM9211 streams the audio serial interface clocks with the format determined by the optical input frame. The digital data from the optical input is streamed to the evaluation module. If the optical input is not connected, the PCM9211 captures the input signal provided through the analog input, and streams the signal to the evaluation module. This feature can be useful when a digital input digital-to-analog converter (DAC) is connected to the AC-MB, providing an analog input for quick evaluation. In auxiliary analog audio mode, the audio serial interface format is fixed to a 24-bit, 48-kHz, I2S mode.