IDTSTAC9752AXTAED1X IDT, Integrated Device Technology Inc, IDTSTAC9752AXTAED1X Datasheet - Page 91

• Manufacturer Part Number: IDTSTAC9752AXTAED1X
• Description: IC CODEC AC'97 MIC/JACK 48-QFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Audio Codec '97r

Specifications of IDTSTAC9752AXTAED1X

• Resolution (bits): 20 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• S/n Ratio, Adcs / Dacs (db) Typ: 85 / 92
• Voltage - Supply, Analog: 3.14 V ~ 3.47 V; 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 3.14 V ~ 3.47 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: STAC9752AXTAED1X

IDT™
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
STAC9752A/9753A
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
11.2. Pinout List 48-pin LQFP Package
Pin 48: To Disable SPDIF, use an 1K - 1 0 K external pullup resistor.
** 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 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.
Pin#
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
Table 33. STAC9752A/9753A 48 Pin LQFP Pin List
SDATA_OUT
XTAL_OUT
CD GND **
LINE_IN_R
SDATA_IN
LINE_IN_L
PIN Name
PC_BEEP
VIDEO_R
VIDEO_L
XTAL_IN
BIT_CLK
RESET#
PHONE
AUX_R
DVSS1
DVSS2
AUX_L
MIC_R
DVDD
DVDD
MIC_L
SYNC
CD R
CD L
91
Pin#
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
STAC9752A/9753A
EAPD / GPIO
S/PDIF-OUT
VREF_OUT
Line_Out_R
Line_Out_L
No Connect
Pin Name
VREF IN
AVDD1
AVDD2
AVSS1
AFILT1
AFILT2
AVSS3
MONO
GPIO0
GPIO1
HP_R
CAP2
HP_L
CID0
CID1
N.C.
N.C.
N.C.
PC AUDIO
V 1.5 1206