AD62550A

ESMT AD62550A Class-D Audio Power Amplifier with USB / I2S Interface Features z Compliant with USB Specification v1.1, and USB 2.0 full speed z Embedded high efficiency, high performance class D stereo amplifier z Support I2S input and I2S output interface of master mode Sampling frequencies(Fs)：48kHz z +6dB enhancement(Theater function) z Support both bus-powered and self-powered operation z Supports Win Me//2000/XP and MacOS z True plug-and-play application, no driver is required for basic USB speaker application z Support volume/mute control with external button z Built-in 5V to 3.3V regulator for internal device operation zT otal efficiency 80% for 8Ω load @ -1dB 1kHz sine wave input z Loudspeaker PSNR & DR (A-weighting) 80dB (PSNR), 78dB (DR) with Bead filter 82dB (PSNR), 78dB (DR) with Chock filter z Anti-pop design z Over-temperature protection z Under-voltage shutdown z Short-circuit detection z 12 MHz Crystal Input z 32-pin LQFP(Pb free) Description AD62550A is a single chip of Class-D audi o amplifier with USB/I 2S interface. Whe n using th e power supplied from the USB port, AD62 550A can drive a pair of up to 1W speakers due to the built-in, high ef ficiency and high perform ance cla ss D amplifiers. The device also has an I2S input port and I2S output p ort. The I 2S input port allows othe r external audio sources to use the cla ss D amplifier to sha re the speakers. Th e I 2S output port allo ws other hi gh perfo rmance a udio device (i.e. AD8356A/AD8256A) to...