AD8356A-2.1-Channel Digital Audio Amplifier with Headphone DriverDataSheet 

Features
􀁺 16/18/20/24-bit input with I2S, Left-alignment and Right-alignment data format
􀁺 PSNR & DR(A-weighting) Loudspeaker: 93dB (PSNR), 98dB (DR) Headphone: 87dB (PSNR), 91dB (DR)
􀁺 Multiple sampling frequencies (Fs)32kHz / 44.1kHz / 48kHz and 64kHz / 88.2kHz / 96kHz
􀁺 System clock = 64x,128x,192x,256x,384x,512x, 576x, 768x, 1024x Fs 64x~1024x Fs for 32kHz / 44.1kHz / 48kHz 64x~512x Fs for 64kHz / 88.2kHz / 96kHz
􀁺 Supply voltage 3.0~12V for loudspeaker driver 3.0~3.3V for others
􀁺 Loudspeaker output power ( @10% THD+N)
2×8.7W(Full,8Ω)+16.7W(Full, 4Ω) for 2.1-channel
2×4.3W(Half,4Ω)+16.7W(Full, 4Ω) for 2.1-channel
2×8.7W(Full,8Ω) for stereo
2×4.3W(Half,4Ω) for stereo
2×16.7W(Full, 4Ω) for stereo
􀁺 Headphone power
34mW into 32Ω@1kHz and 1% THD+N
65mW into 16Ω@1kHz and 1% THD+N
110mW into 8Ω@1kHz and 1% THD+N
200mW into 4Ω@1kHz and 1% THD+N
􀁺 Sound processing including：
Bass (+18dB~-12dB, 3dB frequency is 250Hz),
Treble (+18dB~-12dB, 3dB frequency is 7kHz),
5 bands parametric EQ,
Volume control (+24dB~-103dB, 1dB/step) and
Dynamic range control
􀁺 Anti-pop design
􀁺 Over-temperature protection
􀁺 Under-voltage shutdown
􀁺 Short-circuit protection
􀁺 I2C control interface

Applications
􀁺 CD and DVD
􀁺 TV audio
􀁺 Car audio
􀁺 Boom-box
􀁺 MP3 docking systems
􀁺 Portable / Handheld
􀁺 Powered speaker
􀁺 Wireless audio
􀁺 USB speaker

Description
    This is a 2.1-channel fully digital audio amplifier with output power which can deliver up to 2×8.7W to 8Ω load for L,R channel and 16.7W to 4Ω load for sub-woofer channel simultaneously with 12V supply voltage. Using I2C digital control interface, AD8356A provides sound processing includes Volume, Bass, Treble, EQ, Mixing and Dynamic Range Control (DRC). Users can use one AD8356A for stereo or 2.1-channel,two for 5.1-channel and three for 7.1-channel,respectively.