SBAU443 November   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 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
          2. 2.2.1.1.2 18
          3. 2.2.1.1.3 Optical or Auxiliary Analog Audio Input
          4. 2.2.1.1.4 External
        2. 2.2.1.2 AC-MB Power Supply
      2. 2.2.2 PCMx140Q1EVM-PDK Hardware Settings
        1. 2.2.2.1 Line Inputs
        2. 2.2.2.2 Onboard Microphone Input
  9. 3Software
    1. 3.1 Software Overview
      1. 3.1.1 PurePath Console 3 Installation
      2. 3.1.2 PCMx140Q1EVM GUI Installation
        1. 3.1.2.1 Software Setup
    2. 3.2 Quick Start
      1. 3.2.1 Configuring the Audio Serial Bus for the I2S Output
      2. 3.2.2 32
      3. 3.2.3 Saving a Configuration
    3. 3.3 Matlab Audio Capture Example
  10. 4Hardware Design Files
    1. 4.1 PCMx140Q1EVM-PDK Schematic and Bill of Materials
      1. 4.1.1 PCMx140Q1EVM-PDK Schematic
      2. 4.1.2 PCB Layouts
      3. 4.1.3 PCMx140Q1EVM-PDK Bill of Materials
    2. 4.2 AC-MB Schematic and Bill of Materials
      1. 4.2.1 AC-MB Schematic
      2. 4.2.2 PCB Layouts
      3. 4.2.3 AC-MB Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Related Documentation

2.2.1.1 Audio Serial Interface Settings

The AC-MB provides the digital audio digital signals to the evaluation module from the universal serial bus (USB), optical, stereo jack, and external audio serial interface (ASI) header. Figure 3-2 shows a block diagram of the ASI routing on the AC-MB.

GUID-3F64591B-0D59-4F09-B1B1-8F287387D0A8-low.gifFigure 2-2 AC-MB Audio Serial Interface Routing

Switch SW2 on the AC-MB selects the audio serial bus that interfaces with the TLV320ADC5140EVB. Next to switch SW2, 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, with three different modes of operation (see Figure 3-3): USB, optical or analog, or external ASI.