stac9723t ETC-unknow, stac9723t Datasheet - Page 8

• Manufacturer Part Number: stac9723t
• Description: Stereo Ac 97 Codec With Multi-codec Option
• Manufacturer: ETC-unknow

SigmaTel, Inc.
1.2 Analog I/O
These signals connect the STAC9721/23 to analog sources and sinks, including microphones and
speakers.
* Note: any unused input pins should be tied together and connected to ground with a capacitor (0.1 uF
suggested), except the MIC1 and MIC2 inputs which require their own 0.1 uF capacitors to ground if not
used.
04/07/00
LNLVL_OUT_
LNLVL_OUT_
LINE-OUT-R
LINE-OUT-L
Signal Name
MONO-OUT
LINE-IN-L
LINE-IN-R
VIDEO-R
PC-BEEP
VIDEO-L
CD-GND
PHONE
AUX-R
AUX-L
MIC1
MIC2
CD-L
CD-R
R
L
Type
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
From telephony subsystem speakerphone (or DLP - Down
To telephony subsystem speakerphone (or DLP – Down
Table 4
Data Sheet
. Analog Signal List
True Line Level Out Right Channel
True Line Level Out Left Channel
PC Speaker beep pass-through
8
Video Audio Right Channel
Desktop Microphone Input
Video Audio Left Channel
Second Microphone Input
CD Audio Right Channel
CD Audio analog ground
CD Audio Left Channel
Line Out Right Channel
Line Out Left Channel
Line In Right Channel
Line In Left Channel
Aux Right Channel
Aux Left Channel
Description
Line Phone)
Line Phone)
STAC9721
04/07/00