STAC9766XXTAEC1X IDT, Integrated Device Technology Inc, STAC9766XXTAEC1X Datasheet - Page 88

• Manufacturer Part Number: STAC9766XXTAEC1X
• Manufacturer: IDT, Integrated Device Technology Inc

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

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
13.1. Digital I/O
13.2. Filter/References
These signals connect the STAC9766/9767 to its AC'97 controller counterpart, an external crystal,
multi-CODEC selection and external audio amplifier.
These signals are connected to resistors, capacitors, or specific voltages.
Signal Name
SDATA_OUT
No Connect
No Connect
No Connect
VREFOUT
SDATA_IN
Pin Name
XTL_OUT
BIT_CLK
RESET#
AFILT1
AFILT2
XTL_IN
VREF
GPIO0
GPIO1
SPDIF
CAP2
SYNC
EAPD
CID0
CID1
Pin Number Type
Pin #
10
11
31
33
34
43
44
45
46
47
48
2
3
5
6
8
27
28
29
30
32
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
I
I
I
I
I
I
I
I
Table 36. Filtering and Voltage References
O
O
O
O
O
24.576 MHz Crystal or External Clock Source
24.576 MHz Crystal
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
IDT Internal Test mode only.
IDT Internal Test mode only
IDT Internal Test mode only
General Purpose I/O
General Purpose I/O
Multi-CODEC ID select – bit 0
Multi-CODEC ID select – bit 1
External Amplifier Power Down/GPIO
SPDIF digital output
Pin 48: To Enable SPDIF, use a 1K - 1 0 K external pulldown. To
Disable SPDIF, use a 1K - 1 0 K external pullup. Do NOT leave Pin 48
floating.
Table 35. Digital Connection Signals
Analog ground (0.45*Vdd, at 5V; 0.41*Vdd at 3V)
Reference Voltage out 5mA drive (intended for mic bias) (~Vdd/2)
Anti-Aliasing Filter Cap - ADC left channel
Anti-Aliasing Filter Cap - ADC right channel
ADC Reference Cap
88
Description
Description
STAC9766/9767
PC AUDIO
V 7.4 12/06