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发布者:来自网络 发布时间:2014-5-23 阅读:2520次    关键字: 音频功放
AD82586C-2x20W Stereo Digital Audio Amplifier


AD82586C-2x20W Stereo Digital Audio Amplifier With 20 Bands EQ Functions DataSheet

Description
    AD82586C is a digital audio amplifier capable of driving a pair of 8Ω, 20W operating at 24V supply without external heat-sink or fan requirement with play
music.
    AD82586C can provide advanced audio processing capabilities, such as volume control, 20 bands speaker EQ, audio mixing, 3D surround and Dynamic Range
Control (DRC). These functions are fully programmable via a simple I2C control interface. Robust protection circuits are provided to protect AD82586C from damage due to accidental erroneous operating condition. AD82586C 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. AD82586C is pop free during instantaneous power switch 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: 99dB (PSNR), 104dB (DR) @24V
 Multiple sampling frequencies (Fs)
32kHz / 44.1kHz / 48kHz and
64kHz / 88.2kHz / 96kHz and
128kHz / 176.4kHz / 192kHz
 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
64x~256x Fs for 128kHz / 176.4kHz / 192kHz
 Supply voltage
3.3V for digital circuit
10V~26V for loudspeaker driver
 Loudspeaker output power for at 24V
10W x 2CH into 8Ω @0.17% THD+N for stereo
20W x 2CH into 8Ω @0.26% THD+N for stereo
 Sound processing including:
20 bands parametric speaker EQ
Volume control (+24dB~-103dB, 0.125dB/step),
Dynamic range control (DRC)
Dual band dynamic range control
Power clipping
3D surround sound
Channel mixing
Noise gate with hysteresis window
Bass/Treble tone control
DC-blocking high-pass filter
 Anti-pop design
 Short circuit and over-temperature protection
 I2C control interface with selectable device address
 Support hardware and software reset
 Internal PLL  LV Under-voltage shutdown and HV Under-voltage detection
 Power saving mode

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

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