TIDA-00743

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

Design files

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

Automotive

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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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

Design guide — TIDA-00743

TIDUCY0.PDF (15002 K)

Reference design overview and verified performance test data

Schematic — TIDA-00743

TIDRRU1.PDF (514 K)

Detailed schematic diagram for design layout and components

Schematic — TIDA-00743

TIDRRU2.PDF (427 K)

Detailed schematic diagram for design layout and components

Bill of materials (BOM) — TIDA-00743

TIDRRU3.PDF (29 K)

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

Bill of materials (BOM) — TIDA-00743

TIDRRU4.PDF (26 K)

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

Assembly drawing — TIDA-00743

TIDRRU5.PDF (256 K)

Detailed overview of design layout for component placement

Assembly drawing — TIDA-00743

TIDRRU6.PDF (148 K)

Detailed overview of design layout for component placement

CAD/CAE symbol — TIDA-00743

TIDRRU9.ZIP (1211 K)

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

CAD/CAE symbol — TIDA-00743

TIDRRV0.ZIP (2892 K)

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

Gerber file — TIDA-00743

TIDCDN3.ZIP (2842 K)

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

Gerber file — TIDA-00743

TIDCDN4.ZIP (1811 K)

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

PCB layout — TIDA-00743

TIDRRU7.PDF (1580 K)

PCB layer plot file used for generating PCB design layout

PCB layout — TIDA-00743

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-Q1 — Automotive 110dB 4-Channel Software-Controlled Audio ADC With Universal Front End

Data sheet: PDF | HTML

Clock generators

CDCS504-Q1 — Clock buffer/clock multiplier

Data sheet: PDF | HTML

Linear & low-dropout (LDO) regulators

TPS7B67-Q1 — Automotive 450-mA, off-battery (40-V), high-PSRR, low-IQ, low-dropout voltage regulator with PG

Data sheet: PDF | HTML

MSP430 microcontrollers

MSP430G2332-EP — Enhanced product Mixed Signal Microcontroller

Data sheet: PDF

Speaker amps

TAS6424-Q1 — Automotive, 75-W, 2-MHz, 4-ch, 4.5- to 26.4-V digital input Class-D audio amplifier

Data sheet: PDF | HTML

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Software

Support software

TIDCDN5 — TIDA-00743_Software

TIDCDN5 — TIDA-00743_Software

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Latest version

Version: 01.00.00.00

Release date: 16 Jul 2017

View all versions

TIDA-00743_Software (zip) — 134 K

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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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