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STAC9766 Datasheet(PDF) 87 Page - Integrated Device Technology

Part # STAC9766
Description  TWO-CHANNEL, 20-BIT, AC??7 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
PDF  97 Pages
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

STAC9766 Datasheet(HTML) 87 Page - Integrated Device Technology

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STAC9766/9767
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
PC AUDIO
IDT™
87
STAC9766/9767
V 7.4 12/06
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
13.PIN DESCRIPTION
Figure 24. Pin Description Drawing
Pin 48: To Enable SPDIF, use a 1K
Ω -10KΩ external pulldown. To Disable SPDIF, use a
1K
Ω -10KΩ external pullup. Do NOT leave Pin 48 floating.
The CD_GND signal is an AC signal return for the two CD input channels. It is normally biased at
about 2.5V. The name of the pin in the AC97 specification is CD_GND, and this has confused many
designers. It should not have any DC path to GND. Connecting the CD_GND signal directly to
ground will change the internal bias of the entire CODEC, and cause significant distortion. If there is
no analog CD input, then this pin can be No-Connect.
24 LINE_IN_R
23 LINE_IN_L
22 MIC2
21 MIC1
20 CD_R
19 CD_GND
18 CD_L
17 VIDEO_R
16 VIDEO_L
15 AUX_R
14 AUX_L
13 PHONE
MONO_OUT 37
AVdd2 38
HP_OUT_L 39
HP_COMM 40
HP_OUT_R 41
AVss2 42
GPIO0 43
GPIO1 44
CID0 45
CID1 46
EAPD 47
SPDIF 48
48-Pin TQFP



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