SLOA337 October   2024 TAS6584-Q1 , TAS6684-Q1

 

  1.   1
  2.   Abstract
  3. 1Introduction
  4. 2LC Filter Configuration
  5. 3Audio Performance
    1. 3.1 Inductor Performance Guide
    2. 3.2 Capacitor Selection
  6. 4Summary
  7. 5References
  8.   A Gain Compensation Biquads
  9.   Trademarks

Abstract

TI’s digital input automotive Class-D audio amplifier, TAS6x84-Q1, supports 384kHz, 480kHz, and up to 2MHz switching frequencies. An LC filter on the output of the amplifier is required to remove the fundamental switching frequency noise. Proper component selection of the LC filter is critical to meet the desired audio performance, efficiency, EMC requirements, and cost for the end application. This application report serves as a guide to aid in the selection of an LC filter for TAS6x84-Q1 to meet target-design goals of the end system.