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Texas Instruments TAC5x42 Interface CODECs

Texas Instruments TAC5x42 Interface CODECs consist of low-power, stereo audio Analog-to-Digital Converters (ADC) and audio Digital-to-Analog Converters (DAC) with extensive feature integration. These devices support Time Division Multiplexing (TDM), Left-Justified (LJ), or I2S audio formats in controller and target modes and are pin or hardware-controlled. The TAC5x42 interface CODECs support both differential and single-ended inputs and outputs, making them an excellent choice for space-constrained audio applications. These interface CODECs also integrate a DC-removal digital high-pass filter (HPF) with a configurable cut-off for the ADC signal chain. The TAC5x42 devices are ideal for video conference systems, IP network cameras, IP telephones, smart speakers, and professional audio mixers/control surfaces.

Features

  • Stereo audio ADC channels:
    • Performance:
      • TAC5142:
        • 103dB line/microphone differential input dynamic range
        • -91dB differential input THD+N
      • TAC5242:
        • 119dB line/microphone differential input dynamic range
        • -98dB differential input THD+N
    • Input voltage:
      • Differential, 2VRMS full-scale inputs
      • Single-ended, 1VRMS full-scale input
    • ADC sample rates (fs) = 8kHz to 192kHz frequency range
    • Digital HPF with configurable cut-off frequency:
      • 1Hz or 12Hz, at 48kHz sampling rate
    • Low-noise microphone bias
  • Common features:
    • Pin or hardware control
    • Audio serial interface:
      • Format: TDM, I2S, or Left-Justified (LJ)
      • Bus controller and target modes
      • Configurable TDM slots
      • Selectable 24-bit or 32-bit word length
    • Pin-selectable digital decimation/interpolation filter options:
      • Linear-phase or low-latency
    • Integrated PLL
    • Auto clock and sample rate detection
    • Interrupt output on clock error
    • 1.8V or 3.3V single supply operation AVDD
    • 1.8V or 3.3V I/O supply voltage range
    • -40°C ≤ TA ≤ 125°C temperature grade 1
  • Stereo audio DAC channels:
    • Performance:
      • TAC5142:
        • 110dB DAC to differential line-out dynamic range
        • 107dB DAC to pseudo-differential headphone-out dynamic range
      • TAC5242:
        • 120dB DAC to differential line-out dynamic range
        • 110dB DAC to pseudo-differential headphone-out dynamic range
      • -100dB THD+N
    • Output voltage:
      • Differential line-out/receiver, 2VRMS full-scale
      • Pseudo-differential headphone, 1VRMS full-scale
      • Single-ended line-out, 1VRMS full-scale
    • DAC sample rates (fs) = 8kHz to 192kHz frequency range

Applications

  • Video conference systems
  • IP network cameras
  • IP telephones
  • Smart speakers
  • Professional audio mixer/control surface

Block Diagram

Block Diagram - Texas Instruments TAC5x42 Interface CODECs

Datasheets

Associated EVMs

Texas Instruments TAx5x42EVM-K Evaluation Modules (EVMs)

Modules allow the user to test the capabilities of various TI audio CODECs, ADCs, and DACs.

Learn Moreabout Texas Instruments TAx5x42EVM-K Evaluation Modules (EVMs) View Productsrelated to Texas Instruments TAx5x42EVM-K Evaluation Modules (EVMs)
Published: 2025-01-08 | Updated: 2025-02-05