SLAAEC6A October   2023  – January 2024

 

  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 System Overview
    2. 2.2 Hardware Overview
      1. 2.2.1 AC-MB Settings
        1. 2.2.1.1 Audio Serial Interface Settings
          1. 2.2.1.1.1 USB Mode
          2. 2.2.1.1.2 Optical or Auxiliary Analog Audio Input Mode
          3. 2.2.1.1.3 External Audio Interface Mode
        2. 2.2.1.2 AC-MB Power Supply
      2. 2.2.2 TAx5x1xQ1EVM-K Hardware Settings
        1. 2.2.2.1 TAx5x1x-Q1 EVM Input Hardware Settings
          1. 2.2.2.1.1 Line Inputs
          2. 2.2.2.1.2 On-Board Microphone Input
        2. 2.2.2.2 TAx5x1x-Q1 EVM Output Hardware Settings
          1. 2.2.2.2.1 TAx5x1x-Q1 Analog Audio Output
      3. 2.2.3 Diagnostics Hardware Setup
        1. 2.2.3.1 Short to MICBIAS Setup
        2. 2.2.3.2 Short to VBAT Setup
        3. 2.2.3.3 Shorted Input Pins Setup
        4. 2.2.3.4 Short to GND Setup
      4. 2.2.4 GPIO1 Hardware Configurations
      5. 2.2.5 GPO1A Hardware Configurations
      6. 2.2.6 GPI1A Hardware Configurations
      7. 2.2.7 GPI2A Hardware Configurations
      8. 2.2.8 I2C Address Hardware Configurations
      9. 2.2.9 Audio Serial Interface Hardware Configurations
  9. 3Software
    1. 3.1 Software Description
    2. 3.2 PurePath Console 3 Installation
      1. 3.2.1 USB Audio Setup
    3. 3.3 TAx5x1x-Q1 EVM GUI
      1. 3.3.1 Software Overview
      2. 3.3.2 Configuration View
        1. 3.3.2.1 Device Config Tab
        2. 3.3.2.2 Record Config Tab
        3. 3.3.2.3 Playback Config Tab
        4. 3.3.2.4 Audio Serial Bus Tab
          1. 3.3.2.4.1 Configuring Primary Audio Serial Bus
          2. 3.3.2.4.2 Configuring Secondary Audio Serial Bus
          3. 3.3.2.4.3 Example Configuring I2S Interface
        5. 3.3.2.5 GPIO/Interrupts Tab
        6. 3.3.2.6 Advanced Tabs
          1. 3.3.2.6.1 Diagnostic Tab
          2. 3.3.2.6.2 Programmable Biquads Tab
          3. 3.3.2.6.3 Mixer Tab
          4. 3.3.2.6.4 Limiter Tab
      3. 3.3.3 End System Integration View
      4. 3.3.4 Register Map View
      5. 3.3.5 Preset Configuration
      6. 3.3.6 I2C Monitor View
    4. 3.4 Configuration Examples
  10. 4Hardware Design Files
    1. 4.1 TAC5412-Q1 EVM Schematic
    2. 4.2 TAC5411-Q1 EVM Schematic
    3. 4.3 TAC541x-Q1 EVM Board Layout
    4. 4.4 Bill of Materials (BOM)
      1. 4.4.1 TAC5412-Q1 EVM Bill of Materials
      2. 4.4.2 TAC5411-Q1 EVM Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks
    2. 5.2 Cable References
  12. 6Revision History

2.2.1.1 Audio Serial Interface Settings

The AC-MB provides the digital audio signals to the evaluation module (EVM) from the universal serial bus (USB), optical jack, stereo audio jack, and external audio serial interface (ASI) header. Figure 3-3 shows a block diagram of the ASI routing on the AC-MB.

GUID-20230609-SS0I-L94W-JZBB-QHQ6TJC3CNXL-low.pngFigure 2-3 AC-MB Audio Interface Block Diagram

The SW2 switch on the AC-MB selects the audio serial bus that interfaces with the PCM6xx0EVM. Next to the SW2 switch, the AC-MB has a quick reference table to identify the audio serial interface source options and switch settings. The AC-MB acts as the controller for the audio serial interface. The AC-MB has three different modes of operation: USB, optical or analog, or external ASI.

The serial interface clocks and data are provided from the USB interface. The USB audio class driver on the operating system determines the sampling rate and format. The default settings for the USB audio interface are 32-bit frame size, 48-kHz sampling rate, BCLK and FSYNC ratio of 256, and the format is time-division multiplexing (TDM).