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


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The TAS5404Q1EVM showcases TI’s cost-optimized 4-Ch Analog Input Class-D Audio Solution for Automotive Head Unit systems. The TAS5404 solution allows automotive customers the easiest transition from Class-AB systems to a smaller, lighter and more efficient Class-D solution at a comparable total system cost.

  • TAS5404 delivers 25W per channel into 4-Ω with a 14.4-V supply and provides 2-Ω speaker driving capabilities to head units with no external amplifiers.
  • TAS5404’s  wide supply voltage capabilities, from 5.6-V to 18-V, makes it ideal for automotive head unit while delivering top-of-the-line performance during start-stop low voltage transient events.
  • TAS5404 integrates I2C diagnostics and protection to match and surpass the highest standards for automotive quality and reliability.
  • TAS5404 CISPR25-L5 compliant EMC performance simplifies system design, lowers development cost and accelerates time-to-market delivery.
  • TAS5404Q1EVM features: Four analog inputs via two 3.5-mm stereo jack connectors, four speaker outputs via an 8-position terminal block and On-board USB-I2C controller for GUI-driven control and integrated diagnostics evaluation.

  • 4-Ch 25-W/Ch 4-Ω with a 14.4-V supply
  • 2-Ω speaker driving capabilities to head units
  • I2C Diagnostics and Protection
  • CISPR25, class 5 Radiated/Conducted Emission compliant
  • Four analog inputs, four speaker outputs and on-board USB-I2C controller
Speaker amps
TAS5404-Q1 Automotive, 26-W, 4-ch, 6- to 18-V analog SE input Class-D audio amplifier w/ I2C diag & load dump


Linear & low-dropout (LDO) regulators
TL760M33-Q1 Automotive 500-mA, 26-V, high-accuracy, low-dropout voltage regulator

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Evaluation board

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

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Technical documentation

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Type Title Date
* User guide TAS5404Q1EVM User Guide Oct. 02, 2015
Certificate TAS5404Q1EVM EU Declaration of Conformity (DoC) Jan. 02, 2019

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