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

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

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Parametrics Compare all products in Digital I2S Input Class-D

 
Speaker Channels (Max)
Power to Bridge Tied Load (Max) (W)
Supported Bridge Tied Load (Min) (Ohms)
Closed/Open Loop
Control Interface
Analog Supply (V) (Min)
Analog Supply (V) (Max)
Power Stage Supply (Max) (V)
Audio Input Type
Sampling Rate (Max) (kHz)
Operating Temperature Range (C)
Package Group
Rating
Package Size: mm2:W x L (PKG)
TAS5722L
1   
20   
4   
Closed   
Software   
4.5   
17   
16.5   
Digital   
96   
-25 to 85   
VQFN   
Catalog   
32VQFN: 16 mm2: 4 x 4(VQFN)