Texas Instruments TAD5112 Low-Power Stereo Audio DAC

Texas Instruments TAD5112 Low-Power Stereo Audio Digital-to-Analog Converter (DAC) has a 2VRMS differential output, 110dB dynamic range stereo channels or 1VRMS single-ended output, 107dB dynamic range quad channels. The TAD5112 supports both differential and single-ended inputs and outputs. The DAC outputs can be configured for either line output or headphone loads. The DAC can drive up to 62.5mW into a 16Ω headphone load. The TAD5112 integrates programmable channel gain, digital volume control, a low-jitter phase-locked loop (PLL), a programmable high-pass filter (HPF), programmable EQ and bi-quad filters, low-latency, and ultra-low latency filter modes. It allows for sample rates up to 768kHz for both the DAC and PDM microphone signal chains. The TAD5112 supports an analog input-to-output bypass option and records up to four-channel digital microphones with the PDM interface. Data from analog-in and digital-in can be mixed inside the device as well. The Texas Instruments TAD5112 supports I2S, time-division multiplexing (TDM), or left-justified (LJ) audio formats and can be controlled with I2C or SPI. These integrated high-performance features and a single supply operation make TAD5112 an excellent choice for space-constrained audio applications.

Features

  • Analog input to the output bypass path
  • 4-channel PDM digital microphone record path
  • Input and output mix/mux options
  • Voice activity detection
  • Ultrasonic activity detection
  • Ultrasonic signal or tone generator
  • Battery and thermal foldback protection
  • Signal distortion limiter
  • Low and ultra-low latency filter options
  • Programmable HPF and bi-quad filters
  • I2C and SPI control interface
  • Audio serial interface
    • Format of TDM, I2S or Left-justified (LJ)
    • Word length of 16, 20, 24 or 32-bits
    • Bus controller and target modes
    • Daisy chain in TDM mode
  • Programmable PLL for flexible clocking
  • Auto clock and sample rate detection
  • Low power modes of 10.5mW for 2-ch playback (1.8V supply)
  • Single supply operation AVDD of 1.8V or 3.3V
  • I/O supply operation of 1.2V, 1.8V or 3.3V
  • -40°C ≤ TA ≤ +125°C temperature grade 1
  • Stereo differential or quad single-ended low-power audio DAC
    • Performance
      • DAC to differential line-out dynamic range of 110dB
      • DAC to differential headphone-out dynamic range of 109dB
      • THD+N of –101dB
    • Line-out/headphone output voltage
      • Differential, 2VRMS full-scale
      • Pseudo-differential, 1VRMS full-scale
      • Single-ended, 1VRMS full-scale
    • DAC sample rates (fs) = 4kHz to 768kHz

Applications

  • Soundbar
  • Portable audio and video
  • Smart speakers
  • AV receivers
  • Professional audio mixer/control surface

Simplified Block Diagram

Block Diagram - Texas Instruments TAD5112 Low-Power Stereo Audio DAC
發佈日期: 2025-03-18 | 更新日期: 2025-03-26