SLAU936 August   2024 TAS2120

 

  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. 2Quick Start Guide
    1. 2.1 TAS2120EVM Setup for Software Mode
    2. 2.2 TAS2120EVM Setup for Hardware Mode
  9. 3Hardware
    1. 3.1  AC-MB Settings
      1. 3.1.1 Audio Serial Interface Settings
      2. 3.1.2 USB Audio AC-MB Settings
      3. 3.1.3 External Audio AC-MB Settings
    2. 3.2  AC-MB Power Supply
    3. 3.3  Default Jumper Setting on TAS2120EVM
    4. 3.4  I2C Target Address Selection
    5. 3.5  IOVDD Power Supply Options
    6. 3.6  AVDD Power Supply Options
    7. 3.7  VBAT Power Supply Options
      1. 3.7.1 VBAT 3S EVM Hardware Configuration
    8. 3.8  IOVDD_BUFF Power Supply Options
    9. 3.9  Speaker Outputs
    10. 3.10 2-Channel Configuration
    11. 3.11 4-Wire Measurement of Load
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks

3.4 I2C Target Address Selection

TAS2120 supports 4 different I2C selectable addresses. When SEL1 is set to I2C Mode by shorting the middle row to the top pin (J86), the device checks the state of SEL4 to select the device address. Use SEL4 jumper to select the required I2C address.

CAUTION: By default, the amplifier is configured to play the audio slot according to the I2C address, that is, in a TDM system, device with address 0x90 plays slot 0, address 0x92 plays slot 1, and so on.
TAS2120EVM J79 Address Selection Figure 3-7 J79 Address Selection