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

2.2.2 PCMx140Q1EVM-PDK Hardware Settings

The PCMx140-Q1 evaluation module has several input configuration options and offers extensive flexibility to allow the user to evaluate the device across multiple operation modes. The different operation modes are highlighted in this section. The INxP and INxM pins of the PCMx140-Q1 can optionally connect to an onboard microphone for quick evaluation, and can be optionally configured to bypass the input decoupling capacitors for evaluating the functionality of the digital microphones or GPIOs. Figure 3-8 shows the architecture of the inputs to the evaluation module.

GUID-B1A418E5-0B87-4248-B1C1-AF828472FAFD-low.gif Figure 2-8 PCMx140Q1EVM Input Architecture

When using I2C control, headers J18 and J19 pull down the device pins ADDR0 and ADDR1. This allows the EVM to respond to the 4 different I2C addresses available in the device. Table 3-1 shows the 7bit I2C addresses that correspond to each combination of J18 and J19.

Table 2-1 I2C Address Selection

J18

J19

Address

0

0

0x4C

0

1

0x4D

1

0

0x4E

1

1

0x4F