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

(ACTIVE) TIDA-00743

Description & Features

Technical Documents

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Key Document

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

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Schematic/Block Diagram

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Design Guide

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Design Files

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Bill of Materials (BOM)

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TI Devices (5)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CDCS504-Q1  CDCS504-Q1 Clock Buffer/Clock Multiplier  Clock generators  Sample & Buy Not Available
MSP430G2332-EP  Enhanced Product Mixed Signal Microcontroller  MSP430 ultra-low-power MCUs  Sample & Buy Not Available
PCM1865-Q1  Automotive 110dB 4-Channel Software-Controlled Audio ADC With Universal Front End  Audio converters  Sample & Buy View Design Kits & Evaluation Modules
TAS6424-Q1  75-W 2.1-MHz Digital Input 4-Channel Automotive Class-D Audio Amplifier  Audio amplifiers  Sample & Buy View Design Kits & Evaluation Modules
TPS7B67-Q1  Automotive 450mA High-Voltage Ultra-Low-Iq Low-Dropout Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CDCS504-Q1 Download
MSP430G2332-EP Download Download
PCM1865-Q1 Download -
TAS6424-Q1 Download
TPS7B67-Q1 Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 15002 17 May 2017 34
Design files (12)
Title Abstract Type Size (KB) Date Views
ZIP 1811 17 Jul 2017 2
ZIP 2842 17 Jul 2017 3
ZIP 2892 17 Jul 2017 9
ZIP 1211 17 Jul 2017 10
PDF 930 17 Jul 2017 6
PDF 1580 17 Jul 2017 6
PDF 148 17 Jul 2017 4
PDF 256 17 Jul 2017 3
PDF 26 17 Jul 2017 3
PDF 29 17 Jul 2017 6
PDF 427 17 Jul 2017 8
PDF 514 17 Jul 2017 15
Related Tools & Software

Reference Designs  ( 1 )

Name Part Number Tool Type
Automotive 4-Channel Class D Amplifier Reference Design for Head Unit  TIDA-00573  TI Designs

Design Kits & Evaluation Modules  ( 2 )

Name Part Number Tool Type
4-Ch Analog Input Class-D Audio Amp EVM w/I2C Diagnostics & Protection for Auto Head Unit  TAS5404Q1EVM  Evaluation Modules & Boards 
TAS6424Q1 2.1MHz 4Ch Digital Input Class-D Audio Amplifier w/I2C Diagnostics Evaluation Module  TAS6424Q1EVM  Evaluation Modules & Boards 

Software (1)



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