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发布者:微桥 发布时间:2011-12-16 阅读:8908次    关键字: 音频功放
AD82587-2x15W Stereo/1x30W Mono数字音频功放


AD82587-2x15W Stereo/1x30W Mono Digital Audio Amplifier DataSheet

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 24V
10W x 2CH into 8Ω @0.27% THD+N for stereo
15W x 2CH into 8Ω @0.35% THD+N for stereo
20W x 1CH into 4Ω @0.25% THD+N for mono
30W x 1CH into 4Ω @0.32% THD+N for mono
􀁺 Anti-pop design
􀁺 Over-temperature protection
􀁺 Internal PLL
􀁺 Under-voltage shutdown
􀁺 Over-current protection
􀁺 I2C control interface
􀁺 Zero detection
􀁺 Power limit function
􀁺 Quaternary and ternary switch

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

Description
    AD82587 is a digital audio amplifier capable of driving a pair of 8Ω,15W or a single 4Ω,30W speaker, both which operate with play music at a 24V supply without external heat-sink or fan requirement. Using I2C digital control interface, the user can control AD82587’s input format selection, mute and volume control functions. AD82587 has many built-in protection circuits to safeguard AD82587 from
connection errors.

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