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发布者:来自网络 发布时间:2014-5-22 阅读:2379次    关键字: 音频功放
AD82588-2x15W Stereo/30W Mono Audio Amplifier


AD82588-2x15W Stereo/1x 30W Mono Digital Audio Amplifier with 18 Bands EQ DataSheet

Description
    AD82588 is a digital audio amplifier capable of driving a pair of 8Ω, 15W or a single 4Ω, 30W operating at 24V supply. AD82588 can provide advanced audio processing capabilities, such as volume control, 18 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
    AD82588 from damage due to accidental erroneous operating condition. AD82588 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. AD82588 is pop free during instantaneous power switch because of its built-in, robust anti-pop circuit.
    The output stage is flexibly configurable for stereo channel or mono applications.

Features
􀁺 16/18/20/24-bits input with I2S, Left-alignment and Right-alignment data format
􀁺 PSNR & DR(A-weighting) Loudspeaker: 94dB (PSNR), 103dB (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 stereo at 24V
15W x 2CH into 4Ω @0.17% THD+N
􀁺 Loudspeaker output power for mono at 24V
30W x 1CH into 4Ω @0.095% THD+N
􀁺 Sound processing including:
18 bands parametric speaker EQ
Volume control (+24dB~-103dB, 0.125dB/step),
Dynamic range control
Power Clipping
3D surround sound
Channel mixing
Automatic Zero-detection mute and noise gate
Bass/Treble tone control
Bass management crossover filter
DC-blocking high-pass filter
􀁺 Anti-pop design
􀁺 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
􀁺 Short-circuit protection
􀁺 Over-temperature protection
􀁺 Power saving mode
􀁺 Support initial EEPROM setting

Applications
􀁺 CD and DVD
􀁺 TV audio
􀁺 Car audio
􀁺 Boom-box
􀁺 MP3 docking systems
􀁺 Powered speaker
􀁺 Wireless audio

 

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