TPA6404Q1 50-W, 2-MHz Analog Input 4-Channel Automotive Class-D Audio Amplifier Evaluation Module


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The TPA6404Q1EVM evaluation module (EVM) demonstrates the TPA6404-Q1 integrated circuit from Texas Instruments. The TPA6404-Q1 device is a four-channel analog-input Class-D audio amplifier that implements a 2.1 MHz PWM switching frequency that enables a cost optimized solution in a very small PCB size, full operation down to 4.5 V for start/stop events, and exceptional sound quality with up to 40 kHz audio Bandwidth.

This TPA6404Q1EVM supports 4 BTL output channels, 4 differential inputs, as well as an on-board USB-I2C controller for GUI driven evaluation and diagnostics. TPA6404Q1EVM is a complete automotive Class-D analog input amplifier ready for evaluation and excellent listening experience. The TPA6404Q1EVM design’s CISPR25-L5 compliant EMC performance simplifies system design, lowers development cost and accelerates time-to-market delivery. The TPA6404Q1EVM provides four channels at 27 W into 4 Ω at 10% THD+N and 45 W into 2 Ω at 10% THD+N from a 14.4 V supply and 40 W into 4 Ω at 10% THD+N from an 18 V supply and 50 W into 2 Ω at 10% THD+N from an 16 V supply. The Class-D topology dramatically improves efficiency over traditional Class-AB amplifier solutions. The output switching frequency operates above the AM band which eliminates the AM-band interference and reduces output filter size and cost.

  • 4.5 V to 18 V input supply voltage support
  • Simple PPC3 GUI driven interface to support evaluation and diagnostics
  • Intelligent load diagnostics, including advanced AC diagnostic for Tweeter detection with impedance and phase response
  • 4 BTL output channels and 4 differential inputs 
  • Double-sided, plated-through, Cu 4 layer PCB layout

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TPA6404Q1 50-W, 2-MHz Analog Input 4-Channel Automotive Class-D Audio Amplifier Evaluation Module



TI's Standard Terms and Conditions for Evaluation Modules apply.

Technical Documents
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 4265 12 Dec 2017 178

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SN74AVC2T244  Dual-Bit Dual-Supply Bus Transceiver  Logic 
SN74LVC2G07  Dual Buffer/Driver with Open-Drain Output  Logic 
TPA6404-Q1  50-W, 2-MHz Analog Input 4-Channel Automotive Class-D Audio Amplifier  Mid-Power Audio Amplifiers (10-50W) 
TPS62085  3-A Step-Down Converter with DCS-Control and Hiccup Short Circuit Protection in 2x2 HotRod Package  Step-Down (Buck) 

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