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发布者:微桥 发布时间:2009/12/31 阅读:11063次   
AD52095-2x40W Stereo Class-D Audio Amplifier


AD52095-2x40W Stereo / 1x80W Mono Class-D Audio Amplifier With Power Limit DataSheet
 
 
Description
The AD52095 is a high efficiency stereo class-D
audio amplifier with adjustable power limit function.
The loudspeaker driver operates from 4.5V~26V
supply voltage and analog circuit operates at 5V
supply voltage. It can deliver 40W/CH output power
into 4W or 8W loudspeaker within 1% THD+N at 24V
supply voltage.
AD52095 provides parallel BTL (Mono)
application, and it can deliver 80W into 2W
loudspeaker at 24V supply voltage. The adjustable
power limit function allows user to set a voltage rail
lower than half of 5V to limit the amount of current
through the speaker.
Output DC detection prevents speaker damage
from long-time current stress. AD52095 output short
circuit and over temperature protection include
auto-recovery feature.
 
Features
_ Single supply voltage
4.5V ~ 26V for loudspeaker driver
Built-in LDO output 5V for others
_ Supports Multiple Output Configurations
BTL Mode: 30W/CH into 8W at 24 V
BTL Mode: 40W/CH into 4W at 19 V
PBTL Mode: 60W/CH into 4W at 24 V
PBTL Mode: 80W/CH into 2W at 20 V
_ Loudspeaker performance
BTL Mode: 30W/CH into 8W <1% THD+N@24V
BTL Mode: 40W/CH into 4W <1% THD+N@19V
_ >90% 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
_ Over temperature protection with auto recovery
_ E-TSSOP 28L Epad-Up thermally enhanced
package
 
Applications
_ TV audio
_ Boom-Box
_ Powered speaker
_ Monitors
_ Consumer Audio Equipment
 
 
 
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