IDTSTAC9766XXTAEC1X IDT, Integrated Device Technology Inc, IDTSTAC9766XXTAEC1X Datasheet - Page 15

• 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
2.2.5.
2.2.6.
(50pF external load)
Signal Rise and Fall Times
(BIT_CLK: 75pF external load; from 10% to 90% of Vdd)
(SDATA_IN: 60pF external load; from 10% to 90% of Vdd)
Setup to falling edge of BIT_CLK
Hold from falling edge of BIT_CLK
Output Valid Data from rising edge of BIT_CLK
Note:
Data Setup and Hold
SDATA_OUT
SDATA_IN
S D A T A _ I N
BIT_CLK
B I T _ C L K
SYNC
Setup and hold time parameters for SDATA_IN are with respect to the AC'97 controller.
Clock Source
tco
Digital Video
Figure 6. Signal Rise and Fall Times Timing
BIT_CLK
T r i s e d i n
XTAL
T r i s e c l k
VGA
USB
Figure 5. Data Setup and Hold Timing
V
ih
Parameter
Table 2. Common Clocks and Sources
T
V
hold
V
oh
ol
15
V
il
T
setup
Symbol
Tsetup
Thold
tco
STAC9766/9767
14.31818MHz
Clock Frequency
T f a l l d i n
T f a l l c l k
24.576MHz
12.288MHz
27MHz
48MHz
Min
10
10
-
Typ
-
-
-
Max
15
-
-
PC AUDIO
V 7.4 12/06
Units
ns
ns
ns