STAC9721 Datasheet, PDF (35/48 Pages) List of Unclassifed Manufacturers – Stereo AC 97 Codec With Multi-Codec Option

SigmaTel, Inc.
Data Sheet
9.4 Data Setup and Hold (50pF external load)
STAC9721
Figure 16. Data Setup and Hold
BIT_CLK
SDATA_IN
SDATA_OUT
SYNC
Tsetup
Thold
Tsetup
Thold
Table 26. Data Setup and Hold
Parameter
Setup to falling edge of BIT_CLK
Hold from falling edge of BIT_CLK
Symbol
Tsetup
Thold
Min Typ Max
10
-
-
10
-
-
Note 1: Setup and hold time parameters for SDATA_IN are with respect to the AC'97 controller.
Units
ns
ns
9.5 Signal Rise and Fall Times - (50pF external load; from 10% to 90% of Vdd)
Figure 17. Signal Rise and Fall Times
BIT_CLK
Triseclk
Tfallclk
SDATA_IN
Trisedin
Tfalldin
Table 27. Signal Rise and Fall Times
Parameter
Symbol Min Typ Max
BIT_CLK rise time Triseclk
2
-
6
BIT_CLK fall time Tfallclk
2
-
6
SDATA_IN rise time Trisedin
2
-
6
SDATA_IN fall time Tfalldin
2
-
6
Units
ns
ns
ns
ns
35
04/07/00
04/07/00