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发布者:来自网络 发布时间:2015-5-21 阅读:1961次    关键字: 音频功放
AD87587-2X20W Stereo Digital Audio Amplifier


AD87587-2X20W Stereo/1x40W Mono Digital Audio Amplifier with 2Vrms Line Driver DataSheet

Description
    The AD87587 is an integrated audio system solution,
embedding digital audio process, power stage
amplifier, and a stereo 2Vrms line driver.
Using I2C digital control interface, the user can control
AD87587’s input format selection, mute and volume
control functions. AD87587 has many built-in
protection circuits to safeguard AD87587 from
connection errors.

Features
 16/18/20/24-bit input with I2S, Left-alignment
and Right-alignment data format
 PSNR & DR(A-weighting)
Loudspeaker: 97dB (PSNR), 105dB (DR) @ 24V
 Multiple sampling frequencies (Fs)
32kHz / 44.1kHz / 48kHz and
64kHz / 88.2kHz / 96kHz and
128kHz/176.4kHz/192kHz
 System clock = 64x, 128x, 256x, 384x, 512x, 768x,
1024x Fs
256x~1024x Fs for 32kHz / 44.1kHz / 48kHz
128x~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 Stereo@ 24V
10W x 2ch into 8Ω @ 0.16% THD+N
15W x 2ch into 8Ω @ 0.18% THD+N
20W x 2ch into 8Ω @ 0.24% THD+N
 Sounds processing including:
Volume control (+24dB~-103dB, 0.125dB/step)
Dynamic range control
Power clipping
Channel mixing
User programmed noise gate
DC-blocking high-pass filter
Anti-pop design
 Short circuit and over-temperature protection
 I2C control interface with selectable device address
 Internal PLL
 LV Under-voltage shutdown and HV Under-voltagedetection
 Power saving mode
 Dynamic temperature control

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

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