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发布者:来自网络 发布时间:2009/12/30 阅读:11976次   
AD52058- 2x15W Stereo Class-D Audio Amplifier


AD52058- 2x15W Stereo Class-D Audio Amplifier with Power Limit DataSheet
 
Description
The AD52058 is a high efficiency stereo class-D audio amplifier with adjustable power limit function. The loudspeaker driver operates from 4.5V~14.4V supply voltage. It can deliver 15W/CH output power into 4 loudspeaker within 10% THD+N at 12V supply voltage and without external heat sink when playing music.
The adjustable power limit function allows user to set a voltage rail lower than half of 5.5V to limit the amount of current through the speaker.
Output DC detection prevents speaker damage from long-time current stress. AD52058 provides superior EMC performance for filter-free application. The output short circuit and over temperature protection include auto-recovery feature.
 
Features
l Single supply voltage
4.5V ~ 14.4V for loudspeaker driver
Built-in LDO output 5.5V for others
l Loudspeaker power from 12V supply
BTL Mode: 8W/CH into 8 @1% THD+N
BTL Mode: 10W/CH into 6 @<1% THD+N
BTL Mode: 12W/CH into 4 @<1% THD+N
PBTL Mode: 16W/CH into 4 @1% THD+N
l Loudspeaker power from 12V supply
BTL Mode: 10W/CH into 8 @10% THD+N
BTL Mode: 13W/CH into 6 @10% THD+N
BTL Mode: 15W/CH into 4@10% THD+N
PBTL Mode: 20W/CH into 4 @10% THD+N
l 93% efficient Class-D operation eliminates need for heat sink
l Differential inputs
l Internal oscillator
l Short-Circuit protection with auto recovery option
l Under-Voltage detection
l Over-Voltage protection
l Pop noise and click noise reduction
l Adjustable power limit function for speaker protection
l Output DC detection for speaker protection
l Filter-Free operation
l Over temperature protection with auto recovery
l Superior EMC performance
 
Applications
l TV audio
l Boom-Box
l Powered speaker
l Monitors
l Consumer Audio Equipment
 
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