IDTSTAC9766XXTAEC1X IDT, Integrated Device Technology Inc, IDTSTAC9766XXTAEC1X Datasheet - Page 82

• Manufacturer Part Number: IDTSTAC9766XXTAEC1X
• Description: IC CODEC AC'97 2CH 2.3 48-TQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Audio Codec '97r

Specifications of IDTSTAC9766XXTAEC1X

• Data Interface: Serial
• Resolution (bits): 20 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• S/n Ratio, Adcs / Dacs (db) Typ: 85 / 95
• 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-TQFP, 48-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: STAC9766XXTAEC1X

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
Figure 23 illustrates a state when all the mixers work with the static volume settings that are con-
tained in their associated registers. This configuration can be used when playing a CD (or external
LINE_IN source) through STAC9766/9767 to the speakers, with most of the system in low power
mode. The procedure for this follows the previous example except that the analog mixer is never
shut down.
Normal
PR0=0 & ADC=1
Figure 23. Powerdown/Powerup Flow With Analog Still Alive
PR0=1
ADCs off PR0
PR1=0 & DAC=1
PR1=1
DACs off PR1
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PR4=1
Digital I/F off
Warm Reset
PR4
STAC9766/9767
Shut off
AC-Link
PC AUDIO
V 7.4 12/06