AD82581B – 12W Stereo/Mono Digital Audio Amplifier

AD82581B Datasheet PDF learn more.

Part number : AD82581B

Functions : This is a kind of semiconductor, 12W Stereo/Mono Digital Audio Amplifier.

Pin arrangement :

Package information :

Manufacturer : Elite Semiconductor

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AD82581B Datasheet PDF

The texts in the PDF file :



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


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 connection error. ORDERING INFORMATION Product Number AD82581B-LEG Package 7×7 48L E-LQFP Comments Pb-free MARKING INFORMATION Line 1:LOGO Line 2:Product No Line 3:Tracking Code Line 4:Date Code Elite Semiconductor Memory Technology Inc. Publication Date: Dec. 2008 Revision: 0.2 1/23 ESMT Pin Assignment Preliminary N.C. VDDRA RA GNDR RB VDDRB VDDLB LB GNDL LA VDDLA N.C. 48 45 46 47 44 43 42 41 39 40 37 38 36 35 34 33 32 31 30 29 28 27 26 25 13 16 15 14 18 17 19 20 21 [ … ]

AD82581B PDF File

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