Product Summary
The Winbond W83971D is a high performance codec compliant with Audio Codec¢97 Rev1.03 requirements, in addition to 3D stereo enhancement. The definition of AC Link serial interface allows the W83971D to be used with DC97 controller as well as various digital controller which have AC Link interface. Packaged in a small 48-pin LQFP , the W83971D can be placed on the motherboard, daughter board, add-on cards, PCMCIA cards, or outside the main chassis such as in speakers.
Parametrics
W83971D absolute maximum ratings: (1)Input Voltage Range: -0.3 ~ VDD + 0.3 V; (2)Input Voltage (low): 0.3 x VDD V; (3)Input Voltage (high): 0.4 x VDD V; (4)Output Voltage (low): 0.2 x VDD V; (5)Output Voltage (high): 0.5 x VDD V; (6)Input Leakage Current(AC-Link): -10~10μA.
Features
W83971D features: (1)16-bit stereo full-duplex codec with fixed 48KHz sampling rate; (2)S/N ratio: 85dB (analog to analog), 75dB(analog to digital), 85dB(digital to analog); (3)Four analog line-level stereo inputs for connection from LINE IN, CD, VIDEO, and AUX; (4)Two analog line-level mono inputs for speakerphone and PC BEEP; (5)Mono mic input switchable from two external sources; (6)High quality pseudo-differential CD input; (7)Stereo line-level output; (8)Mono output for speakerphone; (9)3D stereo enhancement; (10)Multiple Codec Support; (11)Power management support; (12)Single 5V supply or analog 5V, digital 3.3V; (13)Packaged in 48-pin LQFP.
Diagrams

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![]() W83977AF |
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![]() W83977F |
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![]() W83977TF-P |
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![]() W83977G-A |
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![]() IC I/O CONTROLLER 128-PQFP |
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(China (Mainland))









