STAC9752AXTAED1X IDT, Integrated Device Technology Inc, STAC9752AXTAED1X Datasheet - Page 90

• Manufacturer Part Number: STAC9752AXTAED1X
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of STAC9752AXTAED1X

• Lead Free Status / RoHS Status: Compliant

11. STAC9752A/9753A PIN DESCRIPTION
IDT™
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
STAC9752A/9753A
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
11.1. Pin Description for the 48-pin LQFP Package
MONO_OUT 37
No Connect 40
HP_OUT_R 41
SPDIF OUT 48
HP_OUT_L 39
Pin 48: To Disable SPDIF, use an 1K - 1 0 K external pullup resistor.
Pin 19: 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 AC’97 specification is CD_GND, and this has con-
fused 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.
AVdd2 38
AVss2 42
GPIO0 43
GPIO1 44
EAPD 47
CID0 45
CID1 46
Figure 24. Pin Description Drawing
48 pin LQFP
90
STAC9752A/9753A
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 1.5 1206