AD62555

ESMT/EMP Features z True plug-and-play application, no driver is required for basic USB speaker application z Supports Windows Me/2000/XP/Vista/7 and Mac OS z Integration circuit quality meet Windows 7 and Vista Hardware Logo requirement z Compliant with USB Specification v1.1, and USB 2.0 full speed z Can work directly with a USB3.0 port z Embedded high efficiency, high performance Class-D stereo amplifier z Support both bus-powered and self-powered operation z +6dB Gain enhancement (Theater function) z Support volume/mute control with external button z LED indicator function z Built-in 5V to 3.3V regulator for internal device operation Preliminary AD62555 Class-D Audio Power Amplifier with USB Interface z Loudspeaker PSNR & DR (A-weighting) 91dB (PSNR), 92dB (DR) with Bead filter z Anti-pop design z Over-temperature protection z Under-voltage shutdown z Short-circuit detection z Embedded Power-On-Reset circuit z 12 MHz crystal input z 3.3V operation with 5V tolerate I/O z 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. Functional Block Diagram Regulator 5V-> 3.3V Power-OnReset PLL1 LA/LB Audio Processing Class-D Amp. XI XO USBDP USBDM XO PLL0 ROM RA/RB USB PHY System Controller Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc. MU...