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Texas Instruments TAD5242 Stereo Audio DAC

Texas Instruments TAD5242 Stereo Audio Digital-to-Analog Converter (DAC) is a 2VRMS 120dB stereo audio DAC that can be configured for either line output or headphone load and supports both single-ended and differential output options. The device integrates a phase-locked loop (PLL) and supports sample rates up to 192kHz. TAD5242 can drive up to 62.5mW into a 16Ω headphone load. The Texas Instruments TAD5242 supports time-division multiplexing (TDM), left-justified (LJ), or I2S audio formats in controller and target modes and is pin or hardware-controlled. This integrated high-performance DAC features pin control and a single supply operation, making the TAD5142 an excellent choice for space-constrained audio applications.

Features

  • Stereo audio DAC performance
    • 120dB DAC to differential line-out dynamic range
    • 110dB DAC to pseudo-differential headphone-out dynamic range
    • -100dB DAC to differential line-out 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
  • Audio serial interface
    • Format: TDM, LJ or I2S
    • Bus controller and target modes
    • Daisy chain in TDM mode
    • Word length is selectable from 24 or 32-bit
  • Pin or hardware control
  • Pin-selectable digital interpolation filter options
    • Linear-phase
    • Low-latency
  • Auto clock detection
  • Interrupt output on clock error
  • Single supply operation AVDD of 1.8V or 3.3V
  • I/O supply operation of 1.8V or 3.3V
  • -40°C ≤ TA ≤ +125°C temperature grade 1

Applications

  • AV receiver
  • IP network camera
  • Soundbar
  • Video conference system

Simplifed Block Diagram

Block Diagram - Texas Instruments TAD5242 Stereo Audio DAC
Published: 2024-12-03 | Updated: 2024-12-12