STAC9766XXTAEC1X IDT, Integrated Device Technology Inc, STAC9766XXTAEC1X Datasheet - Page 87
![](/photos/31/27/312712/48pin_tqfp_sml.jpg)
STAC9766XXTAEC1X
Manufacturer Part Number
STAC9766XXTAEC1X
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.STAC9766XXTAEC1X.pdf
(97 pages)
Specifications of STAC9766XXTAEC1X
Single Supply Voltage (typ)
3.3/5V
Single Supply Voltage (min)
3.135/4.75V
Single Supply Voltage (max)
3.465/5.25V
Package Type
TQFP
Lead Free Status / RoHS Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
STAC9766XXTAEC1X
Manufacturer:
SIGMATEL
Quantity:
20 000
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13.PIN DESCRIPTION
IDT™
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
STAC9766/9767
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
Pin 48: To Enable SPDIF, use a 1K - 1 0 K
1 K
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.
MONO_OUT 37
HP_OUT_R 41
HP_OUT_L 39
HP_COMM 40
- 1 0 K external pullup. Do NOT leave Pin 48 floating.
AVdd2 38
AVss2 42
GPIO0 43
GPIO1 44
SPDIF 48
EAPD 47
CID0 45
CID1 46
Figure 24. Pin Description Drawing
48-Pin TQFP
87
external pulldown. To Disable SPDIF, use a
STAC9766/9767
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
PC AUDIO
V 7.4 12/06
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