深圳市微桥科技有限公司

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