AD8256A Datasheet, PDF (1/4 Pages) Elite Semiconductor Memory Technology Inc. – 2x16W Stereo Digital Audio Amplifier with Headphone Driver

ESMT
AD8256A
2x16W Stereo Digital Audio Amplifier with Headphone Driver
Features
z 16/18/20/24-bit input with I²S, Left-alignment
and Right-alignment data format
z PSNR & DR(A-weighting)
Loudspeaker: 93dB (PSNR), 98dB (DR)
Headphone: 86dB (PSNR), 96dB (DR)
z Multiple sampling frequencies (Fs)
32kHz / 44.1kHz / 48kHz and
64kHz / 88.2kHz / 96kHz
z 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
z Supply voltage
3.0~12V for loudspeaker driver
3.0~3.3V for others
z Loudspeaker output power
2×10W(Full,8Ω) @ 1kHz and 10% THD+N
2×12.5W(Full,6Ω) @ 1kHz and 10% THD+N
2×16W(Full,4Ω) @ 1kHz and 10% THD+N
z 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
z 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
z Anti-pop design
z Over-temperature protection
z Under-voltage shutdown
z Short-circuit protection
z I²C control interface
Applications
z CD and DVD
z TV audio
z Car audio
z Boom-box
z MP3 docking systems
z Portable / Handheld
z Powered speaker
z Wireless audio
z USB speaker
Description
This is a stereo fully digital audio amplifier with
output power which can deliver up to 2×16W to 4Ω
load with 12V supply voltage. Using I²C digital
control interface, AD8256A provides sound
processing functions including Volume, Bass, Treble,
EQ, Mixing and Dynamic Range Control (DRC).
ORDERING INFORMATION
Product Number
AD8256A-KG
AD8256A-LEG
Package
7x7 48L QFN
7x7 48L E-LQFP
Comments
Pb-free
Pb-free
Elite Semiconductor Memory Technology Inc.
Publication Date: May. 2007
Revision: 1.3 1/33