AD82550A

ESMT Features z 16/18/20/24-bit input with I S data format z PSNR & DR (A-weighting) Loudspeaker: 98dB (PSNR), 106dB (DR) Headphone: 87dB (PSNR), 96dB (DR) z Multiple sampling frequencies (Fs) 8kHz, 12kHz, 16kHz, 22.05kHz, 24kHz 32kHz, 44.1kHz, 48kHz, 64kHz, 88.2kHz and 96kHz www.DataSheet4U.com z System clock = 256Fs z 8Fs switching for loudspeakers and headphones z Single or dual supply Single supply: 3.0~3.3V for the whole chip Dual supply: 3.0~5V for loudspeaker drivers 3.0~3.3V for others z Loudspeaker power 3.5W into 4Ω load @ 0dB 1kHz sinewave input 2.0W into 8Ω load @ 0dB 1kHz sinewave input z Loudspeaker power efficiency (η) 86% for 4Ω @ 0dB 1kHz sinewave input 91% for 8Ω @ 0dB 1kHz sinewave input z Headphone power 35mW into 32Ω @1kHz and 1% THD+N 65mW into 16Ω @1kHz and 1% THD+N 113mW into 8Ω @1kHz and 1% THD+N z Volume control for loudspeakers 53steps:+6~-34dB(1dB/step)-36~-58dB(2dB/step) z Mute function z Power down function z Anti-pop design z Over-temperature protection z Under-voltage shutdown z Short-circuit detection 2 AD82550A Stereo Digital Audio Amplifier with Headphone Driver z CD and DVD z TV audio z Internet audio z USB speaker z MP3 z Headphone Amplifier z PDA z Portable / Handheld z Mobile phone z Car audio Description This is a stereo digital audio amplifier with high power efficiency, which leads to longer battery life, less heat sink requirement, smaller board size and lower system cost. AD82550A can detect headphone connection and choose to dri...