描述 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).

特性 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: 86dB (PSNR), 96dB (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 2×10W(Full,8?) @ 1kHz and 10 THD+N 2×12.5W(Full,6?) @ 1kHz and 10 THD+N 2×16W(Full,4?) @ 1kHz and 10 THD+N

● Headphone power 34mW into 32?@1kHz and 1 THD+N 65mW into 16?@1kHz and 1 THD+N 110mW into 8?@1kHz and 1 THD+N 200mW into 4?@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