IDTSTAC9751XXTAEC1XR IDT, Integrated Device Technology Inc, IDTSTAC9751XXTAEC1XR Datasheet - Page 62

• Manufacturer Part Number: IDTSTAC9751XXTAEC1XR
• Description: IC CODEC AC'97 2CH VALUE 48-LQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Audio Codec '97r

Specifications of IDTSTAC9751XXTAEC1XR

• Resolution (bits): 18 b, 20 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• S/n Ratio, Adcs / Dacs (db) Typ: 85 / 89
• 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-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: STAC9751XXTAEC1XR

IDT™
VALUE-LINE TWO-CHANNEL AC’97 CODECS
STAC9750/9751
VALUE-LINE TWO-CHANNEL AC’97 CODECS
10.1. Digital I/O
These signals connect the STAC9750/9751 to its AC'97 controller counterpart, an external crystal,
multi-CODEC selection and external audio amplifier.
SDATA_OUT
SDATA__IN
Pin Name
XTL_OUT
BIT_CLK
RESET#
XTL_IN
GPIO0
GPIO1
SPDIF
SYNC
EAPD
CID0
CID1
NC
NC
NC
Pin # Type
31
33
34
43
44
45
46
47
48
10
11
2
3
5
6
8
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
I
I
I
I
I
I
24.576 MHz Crystal or External Clock Source
24.576 MHz Crystal or ground if external clock source connected to XTAL_IN
Serial, time division multiplexed, AC'97 input stream
12.288 MHz serial data clock
Serial, time division multiplexed, AC'97 output stream
48 KHz fixed rate sample sync
AC'97 Master H/W Reset
No Connect
No Connect
No Connect
General Purpose I/O
General Purpose I/O
Multi-CODEC ID select - bit 0
Multi-CODEC ID select - bit 1
External Amplifier Power Down
SPDIF digital output
Pin 48: - To Enable SPDIF, use an 1 KΩ-10 KΩ external pulldown.
To Disable SPDIF, use an 1 KΩ-10 KΩ external pullup.
Do NOT leave Pin 48 floating.
Table 43. Digital Connection Signals
62
Description
STAC9750/9751
PC AUDIO
V 5.8 103106