TIDA-00743 Reference Design

Texas Instruments

Automotive 2-MHz Class-D: 4-Channel: 21-W Audio Amplifier in Class AB Form-Factor Reference Design

Description

The TIDA-00743 reference design is a small module designed for evaluation of a digital-input class-D audio amplifier in a system which has been designed for a typical class AB audio power amplifier module. This design demonstrates the reduction in power dissipation that a class D amplifier provides. This design demonstrates how 2.1 MHz operation of a TAS6424-Q1 enables a compact power amplifier solution.

Features
  • Audio output power: 21W per channel at 1% THD+N
  • Meets automotive CISPR25 Class-5 EMI requirements
  • Wide power supply voltage range of 4.5V to 18V
  • 40V load dump protection
  • Small size: 42.3mm x 53.5mm
Applications
  • Automotive Head Unit
  • Automotive External Amplifier
  • Aftermarket Automotive Premium Audio
Product Categories
  • Audio

Parts

Part Number Name Companion Part
CDCS504TPWRQ1 CDCS504TPWRQ1 Buy Datasheet
MSP430G2332-EP MSP430G2332-EP Buy Datasheet
PCM1865QDBTRQ1 PCM1865QDBTRQ1 Buy Datasheet
TAS6424LQDKQRQ1 TAS6424LQDKQRQ1 Buy Datasheet
TPS7B6750QPWPRQ1 TPS7B6750QPWPRQ1 Buy Datasheet

Bill Of Materials

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Schematic

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Test Data

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