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

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

 

Description

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.

Features

  • 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

Parametrics

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Part number Order Audio input type Architecture Speaker channels (Max) Power stage supply (Min) (V) Power stage supply (Max) (V) Output power (W) Load (Min) (ohms) SNR (dB) THD + N @ 1 kHz (%) Iq (Typ) (mA) Control interface Closed/open loop Analog supply (Min) (V) Analog supply (Max) (V) Sampling rate (Max) (kHz) PSRR (dB) Operating temperature range (C) Rating
TAS5722L Order now Digital Input     Class-D     Mono     4.5     16.5     15     3.2     106     0.04     15     Software     Closed     4.5     17     96     69     -25 to 85     Catalog