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发布者:来自网络 发布时间:2014-5-21 阅读:2239次    关键字: 音频功放
AD52661-15W Stereo Class-D Audio Amplifier


AD52661-15W Stereo Class-D Audio Amplifier With Power Limit and Dynamic Range Control 

Description
    The AD52661 is a high efficiency stereo class-D audio amplifier with adjustable power limit function and dynamic range control function. The loudspeaker driver operates from 8~16.5V supply voltage and analog circuit operates at 3.3V supply
voltage. It can deliver 15W/CH output power into 8W loudspeaker within 10% THD+N and without external heat sink when playing music.
    AD52661 provides adjustable power limit function allows user to set a voltage rail by two resister divider to limit the amount of current through the speaker. AD52661 also features non-clip function and DRC (Dynamic Range Control) function that were developed for low distortion with audio quality.
    AD52661 has output DC detection prevents speaker damage from long-time current stress, short circuit protection function and over temperature protection.

Features
 Single supply voltage
8 ~ 16.5V for loudspeaker driver
Built-in LDO output 3.3V for others
 Loudspeaker power from 15V supply
Stereo mode: 15W/CH into 8W @10% THD+N
Mono mode: 30W/CH into 4W @10% THD+N
 Loudspeaker power from 12V supply
Stereo mode: 10W/CH into 8W @10% THD+N
Mono mode: 19W/CH into 4W @10% THD+N
 91% efficient Class-D operation eliminates need for heat sink
 Differential inputs
 Four selectable, fixed gain settings
 Internal oscillator
 Clock external synchronization function
 Master/Slave synchronization function using clock outputs
 Under-Voltage detection
 Pop noise and click noise reduction
 Adjustable power limit function for speaker protection
 Non-clip and DRC function
 Filter-Free operation
 Output DC detection for speaker protection
 Short-Circuit protection with auto recovery option
 Over temperature protection with auto recovery

Applications
 TV audio
 Boom-Box
 Powered speaker
 Consumer Audio Equipment

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