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Texas Instruments TAS5722L Mono Class-D Audio Amplifier

Texas Instruments TAS5722L Mono Class-D Audio Amplifier is a high-efficiency power amplifier that includes an integrated digital output clipper, several gain options, and a wide power supply operating range. This device operates with a nominal supply voltage from 4.5V to 17VDC. The TAS5722L is optimized for high transient power capability to utilize the dynamic power headroom of small loudspeakers. This amplifier is capable of delivering more than 15W of continuous power into a 4Ω speaker. The digital time division multiplexed (TDM) interface enables up to 8 devices to share the same bus.

Features

  • Mono class-D amplifier
    • 15W @ 0.02% THD Continuous into 4Ω, 17V
  • >90% Efficient class-D operation eliminates need for heat sinks
  • Audio performance (PVDD = 16.5V, RSPK = 4Ω)
    • Idle channel noise = 45µVRMS (A-Wtd)
    • THD+N = 0.04% (at 1W, 1kHz)
    • SNR=106dB A-Wtd (Ref. to THD+N = 1%)
  • 32kHz to 96kHz I2S input
  • TDM Audio input
    • Up to 8 channels (32-bit, 96kHz)
  • I2C Control with 8 selectable I2C addresses
  • Power supplies
    • 4.5V to 17V Power amplifier
    • 1.8V Digital I/O
  • Robustness features
    • Clock error detector, DC offset, and short-circuit protection
    • Overvoltage, under-voltage, and over-temperature protection

Applications

  • Sub woofers, boom boxes, sound bars, building automation
  • Powered speakers, personal computers
  • Surround sound systems, 1-channel audio system

Functional Block Diagram

Block Diagram - Texas Instruments TAS5722L Mono Class-D Audio Amplifier
Published: 2017-08-22 | Updated: 2022-04-29