Automotive 8 Channel Class D Amplifier with 2.1 MHz Switching Power Supply Reference Design TIDA-00733 (ACTIVE)

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Key Document

Description

TIDA-00733 is a reference design for an eight-channel, Class-D amplifier that is capable of driving 2-Ω loads and an off-battery step-down power supply with 5-V and  3.3-V outputs. The amplifier design provides audio inputs for each audio channel. A  high-performance audio analog-to-digital converter (ADC) creates the digital data stream from the audio inputs and creates the digital timing for the system.

Features
  • Operating voltage range: 4.5V to 18V
  • Withstands transients to 40V
  • 2.1 MHz switching frequency for both power supply and Class D amplifiers
  • 45 watts per channel into 2 ohms at 10% total harmonic distortion plus noise
  • Passes CISPR-25 Class 5 radiated emissions

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Design Files

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TI Devices (9)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM53635-Q1  2.5/3.5A, 36 V Synchronous, 2.1MHz, Automotive Step Down DC-DC Converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
LM74610-Q1  Zero iq reverse polarity protection smart diode controller  Power switches  Sample & Buy View Design Kits & Evaluation Modules
LP5907-Q1  Automotive 250-mA ultra-low-noise low-IQ low-dropout (LDO) linear regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
LP5912-Q1  Automotive 500-mA low-noise low-IQ low-dropout (LDO) linear regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
MSP430G2332-EP  Enhanced Product Mixed Signal Microcontroller  Microcontrollers (MCU)  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
SN74LVC125A-Q1  Automotive Catalog Quadruple Bus Buffer Gate With 3-State Outputs  Buffer/driver  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
TLV2462A-Q1  Dual 6.4MHz automotive low power, improved offset, RRIO op amp  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM53635-Q1 Download Download
LM74610-Q1 Download Download
LP5907-Q1 Download Download
LP5912-Q1 Download Download
MSP430G2332-EP Download Download
PCM1865-Q1 Download -
SN74LVC125A-Q1 Download -
Download Download
TAS6424-Q1 Download
TLV2462A-Q1 Download Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 7883 24 Oct 2017
Design files (6)
Title Type Size (KB) Date
ZIP 5557 14 Dec 2017
ZIP 2228 14 Dec 2017
PDF 3089 14 Dec 2017
PDF 486 14 Dec 2017
PDF 42 14 Dec 2017
PDF 850 14 Dec 2017
Related Tools & Software

Reference Designs  ( 1 )

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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