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Texas Instruments TAC5301-Q1 Automotive Mono Audio Codec

Texas Instruments TAC5301-Q1 Automotive Mono Audio Codec is a low-power codec with 2VRMS differential input and 100dB dynamic range ADC. This audio codec features a 110dB dynamic range, mono channel or 1VRMS single-ended output, and 107dB dynamic range stereo channels. The TAC5301-Q1 devices are AEC-Q100 qualified for automotive applications. This mono audio codec is ideal for telematics control units, automotive head units, automotive clusters, and rear seat entertainment.

The TAC5301-Q1 mono audio codec supports both differential and single-ended inputs and outputs. This codec offers voice activity detection, ultrasonic activity detection, auto clock and sample rate detection, and low and ultra-low latency filter options. The device can directly use an external High-Voltage supply (HVDD) to generate a high-voltage and programmable microphone bias. The TAC5301-Q1 audio codec supports Time Division Multiplexing (TDM), I2S, or Left-Justified (LJ) audio formats, and can be controlled with I2C.

Features

  • AEC-Q100 qualified for automotive applications
  • -40°C ≤TA ≤125°C temperature grade 1
  • Mono audio ADC channel:
    • Performance:
      • 100dB line/microphone differential input dynamic range
      • -87dB differential input THD+N
    • Input voltage:
      • Differential, 2VRMS full-scale input
      • Single-ended, 1VRMS full-scale input
    • 8kHz to 192kHz ADC sample rates (fs)
    • Programmable microphone bias with 3V to 10V external high voltage HVDD supply
  • Mono differential or stereo single-ended audio DAC
    • Performance:
      • 110dB DAC to differential line-out dynamic range
      • 109dB DAC to differential headphone-out dynamic range
      • -101dB THD+N
    • Line-out/Headphone output voltage:
      • Differential, 2VRMS full-scale
      • Pseudo-differential, 1VRMS full-scale
      • Single-ended, 1VRMS full-scale
    • 8kHz to 192kHz DAC sample rates (fs)
  • Voice activity detection
  • Ultrasonic activity detection
  • Battery and thermal foldback protection
  • Signal distortion limiter
  • Low and ultra-low latency filter options
  • Programmable HPF and biquad filters
  • I2C control interface
  • Audio serial interface:
    • TDM, I2S, or Left-justified (LJ) format
    • 16-, 20-, 24-, or 32-bit word length
    • Bus controller and target modes
  • Programmable PLL for flexible clocking
  • Auto clock and sample rate detection
  • Low power modes
  • 3.3V single supply operation AVDD
  • 1.2V, 1.8V, or 3.3V I/O supply operation

Applications

  • Telematics control unit
  • Automotive head units
  • Automotive clusters
  • Rear seat entertainments

Simplified Block Diagram

Block Diagram - Texas Instruments TAC5301-Q1 Automotive Mono Audio Codec
Published: 2025-07-01 | Updated: 2025-07-28