AD82581B

ESMT Features Preliminary AD82581B 12W Stereo/Mono Digital Audio Amplifier z 16/18/20/24-bit input with I2S, Left-alignment and Right-alignment data format z PSNR & DR(A-weighting) Loudspeaker: 98dB (PSNR), 106dB (DR) @24V z Multiple sampling frequencies (Fs) 32kHz / 44.1kHz / 48kHz and 64kHz / 88.2kHz / 96kHz and 128kHz/176.4kHz/192kHz z System clock = 64x, 128x, 256x, 384x, 512x, 768x, 1024x Fs 256x~1024x Fs for 32kHz / 44.1kHz / 48kHz 128x~512x Fs for 64kHz / 88.2kHz / 96kHz 64x~256x Fs for 128kHz/176.4kHz/192kHz z Supply voltage 3.3V for digital circuit 12V~24V for loudspeaker driver z Loudspeaker output power for 24V 2×10W into 8Ω@0.19% THD+N for stereo 1×20W into 4Ω@0.18% THD+N for mono z Loudspeaker output power for 24V with proper cooling method 2×26W into 8Ω@1% THD+N for stereo 1×53W into 4Ω@1% THD+N for mono z Anti-pop design z Over-temperature protection z Internal PLL z Under-voltage shutdown z Over-current protection z I2C control interface Applications z CD and DVD z TV audio z Car audio z Boom-box z MP3 docking systems z Powered speaker z Wireless audio z USB speaker Description This is a stereo (8Ω)/mono (4Ω) fully digital audio amplifier with output power which can drive up to 2x12W for stereo or 1x24W for mono at 24V supply voltage, no external heat-sink or fan is requirement. Using I2C digital control interface, AD82581B provides input format selection, mute and volume control function. Protection circuits are provided to protect AD82581B damage while ...