SLAU964 August   2025

 

  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 TAS2020EVM Setup for Hardware Mode
    2. 2.2 TAS2020EVM Setup for Software Mode
  9. 3Hardware
    1. 3.1 I2C Target Address Selection
    2. 3.2 PVDD Power Supply Options
    3. 3.3 VDD Power Supply Options
    4. 3.4 IOVDD Power Supply Options
    5. 3.5 Speaker Outputs
    6. 3.6 AC-MB Settings
      1. 3.6.1 Audio Serial Interface Settings
      2. 3.6.2 USB Audio AC-MB Settings
      3. 3.6.3 External Audio AC-MB Settings
    7. 3.7 AC-MB Power Supply
    8. 3.8 2-Channel Configuration
    9. 3.9 4-Wire Measurement of Load
  10. 4Troubleshooting
  11. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layouts
    3. 5.3 Bill of Materials
  12. 6Additional Information
    1. 6.1 Trademarks
  13. 7Revision History

2.1 TAS2020EVM Setup for Hardware Mode

Follow the information presented in this section to properly set the EVM for Hardware Pin-Controlled Mode. Place the jumpers as instructed in Table 2-2.

Table 2-1 Hardware Pin-Control Mode Jumper Settings

Location

JumperSettingDescription

Front

SEL1 (J9/J86)

12dBV-RampEn

Short 2nd to top-right corner to select 12dBV gain and volume ramp enabled.

SEL2 (J10/J87/J1)

TDM0 / I2SL

Short top left corner for TDM0 channel selection.

SEL3 (S2)

10

Select BCLK Rising Edge.

SEL4 (SW1)

0001

Select the Y-Bridge threshold as 80mW.

EEPROM address (J53)

Short

TI Test jumper.

EEPROM (J54)

Open

TI Test jumper.

Back

VIN to PVDD (J22)

Short

VIN (J21) = PVDD for TAS2020.

VDD (J7)

Short

Connect LDO to TAS2020 VDD.

IOVDD (J3)

Short

Connect AC-MB IOVDD to TAS2020 IOVDD.

SCL (J18)

Open

Disconnect SCL from AC-MB.

SDA (J19)

Open

Disconnect SDA from AC-MB.

TAS2020EVM Hardware Pin-Control Mode Jumper Settings (Front Side)Figure 2-1 Hardware Pin-Control Mode Jumper Settings (Front Side)
TAS2020EVM Hardware Mode Jumper Settings (Back Side)Figure 2-2 Hardware Mode Jumper Settings (Back Side)

Once all the jumpers on the EVM are properly configured, follow the steps below:

  • Connect AC-MB to EVM by placing the EVM on top of the edge of the AC-MB.
  • Set the IOVDD jumper on AC-MB to either 3.3V or 1.8V.
  • Connect 5V power adapter to barrel jack J21 on TAS2020EVM
  • Connect USB cable from PC to AC-MB.

At this moment, the device is powered up and running, ready to play audio. The evaluation kit works as any other sound card, select the EVM as system playback device and use any software like web browser, media player, and so forth.