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发布者:来自网络 发布时间:2016/11/30 阅读:6951次   
AD82589-2x20W Stereo Digital Audio Amplifier


AD82589-2x20W Stereo/1x40W Mono Digital Audio Amplifier With 24 Bands EQ Functions DataSheet

AD82589_layout guideline AD82589_GUI

AD82589_software AD82589A_USB

Description
    AD82589 is an integrated audio system solution,
embedding digital audio processing power stage
amplifier.
    AD82589 has a programmable slew-rate
controlled output buffer, which drives one (mono) or
two (stereo) speakers directly. In addition, it is
insusceptible to supply voltage fluctuation due to the
close-loop design.
    AD82589 can provide advanced audio processing
capabilities, such as volume control, 24 bands EQ,
audio mixing and Dynamic Range Control (DRC).
These functions are fully programmable via a simple
I
2C interface.
Robust protection circuits are provided to protect
    AD82589 from damage due to accidental erroneous
operation. AD82589, being a digital circuit design, is
more tolerant to noise and PVT (Process, Voltage, and
Temperature) variation than the analog Class-AB or
Class-D audio amplifier counterpart implemented by
analog circuit design. Furthermore, AD82589 is pop
free during instantaneous power switching because of
its built-in, robust anti-pop circuit.

Features
16/18/20/24-bits input with I2S, Left-alignment
and Right-alignment data format
PSNR & DR (A-weighting)
Loudspeaker: 102dB (PSNR), 108dB (DR)
@24V
Multiple sampling frequencies (Fs)
32kHz / 44.1kHz / 48kHz and
64kHz / 88.2kHz / 96kHz and
128kHz / 176.4kHz / 192kHz
I2C control interface
Channel mixing
Volume control (+12dB ~ -103dB, 0.125dB/step)
Power clipping function
DRC and DTC function
24 bands parametric speaker EQ
Bass/Treble tone control
DRC and post scale boost
Check-sum coefficient protection
Noise gate function
Pop noise less muting (Quick Mute/Quick Start)
Sleep function
X3 over sampling for 32kHz FS
AM interference frequency switching
Level meter
Post-scale and DRC offset volume support
Over current protection function (OCP)
Over temperature protection function (OTP)
Under voltage lock out (UVLO)
Over voltage protection function (OVP)
DC detection function (DCDET)
Clock detection function (CKDET)
Lead-free E-LQFP-48L

Applications
TV audio
Boom-box, CD and DVD receiver, docking system
Powered speaker
Wireless audio

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