TIDA-00743

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

TIDA-00743

Design files

Overview

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

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUCY0.PDF (15002 K)

Reference design overview and verified performance test data

TIDRRU1.PDF (514 K)

Detailed schematic diagram for design layout and components

TIDRRU2.PDF (427 K)

Detailed schematic diagram for design layout and components

TIDRRU3.PDF (29 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRRU4.PDF (26 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRRU5.PDF (256 K)

Detailed overview of design layout for component placement

TIDRRU6.PDF (148 K)

Detailed overview of design layout for component placement

TIDRRU9.ZIP (1211 K)

Files used for 3D models or 2D drawings of IC components

TIDRRV0.ZIP (2892 K)

Files used for 3D models or 2D drawings of IC components

TIDCDN3.ZIP (2842 K)

Design file that contains information on physical board layer of design PCB

TIDCDN4.ZIP (1811 K)

Design file that contains information on physical board layer of design PCB

TIDRRU7.PDF (1580 K)

PCB layer plot file used for generating PCB design layout

TIDRRU8.PDF (930 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Audio ADCs

PCM1865-Q1Automotive 110dB 4-Channel Software-Controlled Audio ADC With Universal Front End

Data sheet document-pdfAcrobat PDF open-in-new HTML
Clock generators

CDCS504-Q1Clock buffer/clock multiplier

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TPS7B67-Q1Automotive 450-mA, off-battery (40-V), high-PSRR, low-IQ, low-dropout voltage regulator with PG

Data sheet document-pdfAcrobat PDF open-in-new HTML
MSP430 microcontrollers

MSP430G2332-EPEnhanced product Mixed Signal Microcontroller

Data sheet document-pdfAcrobat PDF
Speaker amps

TAS6424-Q1Automotive, 75-W, 2-MHz, 4-ch 4.5- to 26.4-V digital input Class-D audio amplifier w/ load dump

Data sheet document-pdfAcrobat PDF open-in-new HTML

Start development

Software

Support software

TIDA-00743_Software – TIDCDN5.ZIP (134 K)

Technical documentation

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Type Title Date
* Design guide 2-MHz Automotive Class-D, 4-Channel, 20-W Audio Amplifier in Class AB Ref Design May 17, 2017

Related design resources

Hardware development

EVALUATION BOARD
TAS5404Q1EVM 4-Ch Analog Input Class-D Audio Amp EVM w/I2C Diagnostics & Protection for Auto Head Unit

Reference designs

REFERENCE DESIGN
TIDA-00573 Automotive 4-Channel Class D Amplifier Reference Design for Head Unit

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