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

1.3 Specification

The TAS2120 is a digital input Class-D audio amplifier optimized for delivering best battery life for music playback and voice calls.

The integrated boost operation is flexible so that TAS2120 can be implemented in 1S and 2S battery applications. TAS2120EVM showcases the 1S battery broadly used in mobile and industrial applications. The two EVMs can be interconnected, as shown in Section 3.10.

TAS2120EVM Application Diagram for 1S Battery SystemFigure 1-1 Application Diagram for 1S Battery System

For 2S battery applications, the boost inductor can be supplied by a higher supply from 4.7V to 10V. VBAT pin must still be supplied by a voltage from 2.5V to 5.5V.

TAS2120EVM Application Diagram for 2S Battery SystemFigure 1-2 Application Diagram for 2S Battery System

In a 3S battery application, the integrated boost can be bypassed, and an external power rail can supply PVDD directly. The boost inductor is not required in this case and SW pins are left open. VBAT pin must still be supplied by a voltage from 2.5V to 5.5V.

TAS2120EVM Application Diagram for 3S Battery System Figure 1-3 Application Diagram for 3S Battery System