features
●true plug-and-play application, no driver is required for basic usb speaker application
●supports windows me/2000/xp/vista/7 and mac os
●integration circuit quality meet windows 7 and vista hardware logo requirement
●compliant with usb specification v1.1, and usb 2.0 full speed
●can work directly with a usb3.0 port
●embedded high efficiency, high performance class-d stereo amplifier
●support both bus-powered and self-powered operation
●+6db gain enhancement (theater function)
●support volume/mute control with external button
●led indicator function
●built-in 5v to 3.3v regulator for internal device operation
●loudspeaker psnr & dr (a-weighting) 91db (psnr), 92db (dr) with bead filter
●anti-pop design
●over-temperature protection
●under-voltage shutdown 
●short-circuit detection
●embedded power-on-reset circuit
●12 mhz crystal input
●3.3v operation with 5v tolerate i/o
●24-pin e-tssop pb-free package
 
 
description
ad62555 is a monolithic class-d audio amplifier with usb interface. when powered by the usb port, ad62555 can drive a pair of up to 1w speakers due to the built-in, high efficiency and high performance class-d amplifiers.