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發布者:來自網絡 發布時間:2014/5/22 閱讀:8379次    關鍵字: 音頻功放
AD52580-20W Stereo Class-D Audio Amplifier


AD52580-20W Stereo Class-D Audio Amplifier with Power Limit And Dynamic Temperature Control DataSheet

AD52580 PCB Layout Guide

I. General Description:
The AD52580 is a high efficiency stereo class-D audio amplifier with adjustable power limit function and dynamic
temperature control. The loudspeaker driver operates from 8~26V supply voltage and analog circuit operates at 3.3V
supply voltage. It can deliver 20W/CH output power into 8W loudspeaker within 0.09% THD+N and without external heat
sink when playing music.

II. Features:
 Single supply voltage
8 ~ 26V for loudspeaker driver
Built-in LDO output 3.3V for others
 Loudspeaker power from 24V supply
BTL Mode: 20W/CH into 8W @0.09% THD+N
PBTL Mode: 40W/CH into 4W @0.15% THD+N
 Loudspeaker power from 13V supply
BTL Mode: 10W/CH into 8W @10% THD+N
 87% efficient Class-D operation eliminates need for heat sink
 Differential inputs
 Four selectable, fixed gain settings
 Internal oscillator
 Short-Circuit protection with auto recovery option
 Under-Voltage detection
 Over-Voltage protection
 Pop noise and click noise reduction
 Adjustable power limit function for speaker protection
 Output DC detection for speaker protection
 Filter-Free operation
 Over temperature protection with auto recovery
 Dynamic temperature control prevents chip from over heating

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

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