TAS5722L - 20-W Mono Digital Input Class-D Audio Amplifier with 1.8-V Digital I/O

The TAS5722L device is a high-efficiency mono Class-D audio power amplifier which includes integrated digital output clipper, several gain options, and a wide power supply operating range. It operates with a nominal supply voltage from 4.5 V to 17 VDC.

TAS5722L is optimized for high transient power capability to utilize the dynamic power headroom of small loudspeakers. It is capable of delivering more than 15 W of continuous power into a 4-Ω speaker.

The digital time division multiplexed (TDM) interface enables up to 8 devices to share the same bus.

The TAS5722L device is available in a 4 mm × 4 mm, 32-pin QFN package.

• Mono Class-D Amplifier
  • 15 W @ 0.02% THD Continuous into 4 Ω, 17 V
• >90% Efficient Class-D Operation Eliminates Need for Heat Sinks
• Audio performance(PVDD = 16.5 V, RSPK = 4Ω)
  • Idle Channel Noise = 45 µVRMS (A-Wtd)
  • THD+N = 0.04% (at 1 W, 1 kHz)
  • SNR=106 dB A-Wtd (Ref.to THD+N = 1%)
• I²S input : 32 kHz to 96 kHz
• TDM Audio Input
  • Up to 8 Channels (32-bit, 96 kHz)
• I²C Control with 8 Selectable I²C Address
• Power Supplies
  • Power Amplifier: 4.5 V to 17 V
  • Digital I/O: 1.8 V
• Robustness features
  • Clock Error Detector, DC Offset and Short-Circuit Protection
  • Over Voltage, Under Voltage and Over Temperature Protection