Advanced Information
WM9707
DATA SETUP AND HOLD (50pF EXTERNAL LOAD)
tSETUP
BIT_CLK
tHOLD
SYNC
SDATA_OUT
Figure 5 Data Setup and Hold (50pF External Load)
Note: Setup and hold time parameters for SDATA_IN are with respect to AC’97 Controller.
PARAMETER
SYMBOL
tSETUP
MIN
15.0
5.0
TYP
MAX
UNIT
ns
Setup to falling edge of BIT_CLK
Hold from falling edge of BIT_CLK
tHOLD
ns
SIGNAL RISE AND FALL TIMES
triseCLK
tfallCLK
BIT_CLK
riseSYNC
t
tfallSYNC
SYNC
triseDIN
tfallDIN
SDATA_IN
riseDOUT
t
tfallDOUT
SDATA_OUT
Figure 6 Signal Rise and Fall Times (50pF external load)
PARAMETER
SYMBOL
triseCLK
tfallCLK
MIN
2
TYP
MAX
UNIT
ns
BIT_CLK rise time
BIT_CLK fall time
SYNC rise time
6
6
6
6
6
6
6
6
2
ns
triseSYNC
tfallSYNC
triseDIN
2
ns
SYNC fall time
2
ns
SDATA_IN rise time
SDATA_IN fall time
SDATA_OUT rise time
SDATA_OUT fall time
2
ns
triseDIN
2
ns
triseDOUT
tfallDOUT
2
ns
2
ns
WOLFSON MICROELECTRONICS LTD
AI Rev 2.2 January 2001
9
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
