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发布者:微桥 发布时间:2011-12-28 阅读:9479次    关键字: 音频功放
AD83586-Digital Audio Amplifier


AD83586-2x25W Stereo / 1x 50W Mono / 2x15W+1x30W 2.1CH Digital Audio Amplifier with 20 Bands EQ DataSheet

AD83586_layout guide

AD83586_EV_STE_PCB

AD83586_2_1_SCH

AD83586-2.1 Demo board use manual

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
25W x 2CH into 4Ω @0.09% THD+N
􀁺 Loudspeaker output power for mono at 24V
50W x 1CH into 4Ω @0.08% THD+N
􀁺 Loudspeaker output power for 2.1CH at 24V
15W x 2CH into 8Ω @0.17% THD+N
30W x 1CH into 4Ω @0.095% THD+N
􀁺 Sound processing including:
20 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

Description
    AD83586 is a digital audio amplifier capable of driving a pair of 8Ω, 15W plus a single 4Ω, 30W, or a pair of 4Ω, 25W or a single 4Ω, 50W speaker operating at 24V supply with proper cooling method.
    AD83586 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 AD83586 from damage due to accidental erroneous operating condition. AD83586 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. AD83586 is pop free during instantaneous power switch because of its built-in, robust anti-pop circuit.
    The output stage is flexibly configurable for 2.1 channel, stereo or mono applications. Furthermore, it is possible to use three pieces of AD83586 to realize
5.1 channels for home theater applications.

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