SLAAEM7 September   2024 TAS2120 , TAS2320

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Application Schematics
    1. 2.1 Recommended Component Ratings
    2. 2.2 Reference Schematic
  6. 3Design Guidelines
    1. 3.1  VDD Pin
    2. 3.2  PVDD Pin
    3. 3.3  GREG Pin
    4. 3.4  SW Pin
    5. 3.5  VBAT Pin
    6. 3.6  OUT_P and OUT_N Pins
      1. 3.6.1 Optional EMI Filter on Output
    7. 3.7  IOVDD Pin
    8. 3.8  DREG Pin
    9. 3.9  Digital I/O Pins
    10. 3.10 Ground Pins
    11. 3.11 HW Selection Pins
  7. 4EMI Specific Guidelines
  8. 5Summary
  9. 6References

1 Introduction

TAS2x20 is a digital-input Class-D amplifier family. TAS2120 takes a voltage supply from a single or multi-cell battery source, and boosts the supply to a high voltage. TAS2320 takes a voltage supply directly from a higher voltage source such as multi-cell battery or AC/DC adapter. These features enable the user to play audio and deliver high power into a speaker load.

When using this device in audio designs, the PCB design is a critical factor. To verify that the device is reliable and meets the required performance and functionality criteria, while minimizing losses to maintain system efficiency, certain design and layout practices need to be accounted for while designing the application.

This application note provides a set of recommended guidelines that need to be followed, which enable the user to operate the device at designed for performance and efficiency. The TAS2120EVM is used as a reference to highlight these guidelines.