AD52580中文资料20W Stereo Class-D Audio Amplifier with Power Limit And Dynamic Temperature Control数据手册ESMT规格书

描述 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 82 loudspeaker within 0.09% THD+N and without external heat sink when playing music.

AD52580 provides parallel BTL (Mono) application, and it can deliver 40W into 4Q loudspeaker within 0.15% THD+N. The adjustable power limit function allows user to set a voltage raillower than half of 3.3V to limit the amount of current through the speaker.

Output DC detection prevents speaker damage from long-time current stress. The dynamic temperature control is a gain control system. As chip junction temperature higher than a warning level, the gain level will decrease until junction temperature lower than the warning level.

The output short circuit and over temperature protection include auto-recovery feature.

特性 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 8Q @0.09% THD+N PBTL Mode:40W/CH into 4Q @0.15% THD+N
• Loudspeaker power from 13V supplyBTL Mode:10W/CH into 8Q @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
• Boom-Box
• Powered speaker
• Consumer Audio Equipment

应用 Application

• TV audio