SLVUDQ1 May   2026

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1  AC-MB Settings
      1. 2.1.1 Audio Serial Interface Settings
      2. 2.1.2 USB Control
      3. 2.1.3 External Control
    2. 2.2  AC-MB Power Supply
    3. 2.3  Default Jumper Settings on TAS2573EVM
    4. 2.4  I2C Target Address Selection
    5. 2.5  IOVDD and VDD Power Supply Options on EVM
    6. 2.6  VBAT Power Supply for TAS2573 on EVM
      1. 2.6.1 VBAT 2S EVM Hardware Configuration
      2. 2.6.2 VBAT 3S (External PVDD) EVM Hardware Configuration
    7. 2.7  Speaker Outputs
    8. 2.8  1-Channel Configuration
    9. 2.9  4-Channel Configuration
    10. 2.10 4-Wire Measurement of Load
    11. 2.11 Jumper Settings Quick Reference
  8. 3Hardware Design Files
    1. 3.1 Schematics
    2. 3.2 PCB Layouts
    3. 3.3 Bill of Materials (BOM)
  9. 4Additional Information
    1. 4.1 Known Issues
    2. 4.2 Troubleshooting
    3.     Trademarks

2.5 IOVDD and VDD Power Supply Options on EVM

TAS2573EVM daughter card provides flexible options for IOVDD and VDD power supplies. There are options to select between internal or external voltage sources for each of these supplies individually.

IOVDD is the input/output power supply for TAS2573 device, which can be either 1.2V or 1.8V.

VDD is the analog power supply for TAS2573 device, which must be fixed 1.8V.

By default, 1.8V coming from the AC-MB motherboard (IOVDD_MB) has been selected for IOVDD. VDD is powered from an on-board 1.8V LDO (1.8V_LDO).

If an external supply is to be used, simply remove J26-IOVDD or J33-VDD, and connect the voltage source to J24-IOVDD or J27-VDD.

TAS2573EVM IOVDD and VDD Power Selection JumpersFigure 2-8 IOVDD and VDD Power Selection Jumpers