WM9708 Datasheet, PDF (9/28 Pages) Wolfson Microelectronics plc – AC97 Revision 2.1 Audio Codec

Advanced Information
DATA SETUP AND HOLD (50pF EXTERNAL LOAD)
BITCLK
SYNC
SDATAOUT
t
SETUP
t_HOLD
WM9708
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
Setup to falling edge of BITCLK
Hold from falling edge of BITCLK
SYMBOL
tSETUP
tHOLD
MIN
15.0
5.0
TYP
MAX
UNIT
ns
ns
SIGNAL RISE AND FALL TIMES
trise_CLK
BITCLK
trise_SYNC
SYNC
trise_DIN
SDATAIN
trise_DOUT
SDATAOUT
tfall_CLK
tfall_SYNC
tfall_DIN
tfall_DOUT
Figure 6 Signal Rise and Fall Times (50pF external load)
PARAMETER
BITCLK rise time
BITCLK fall time
SYNC rise time
SYNC fall time
SDATAIN rise time
SDATAIN fall time
SDATAOUT rise time
SDATAOUT fall time
SYMBOL
triseCLK
tfallCLK
triseSYNC
tfallSYNC
triseDIN
triseDIN
triseDOUT
tfallDOUT
MIN
2
2
2
2
2
2
2
2
TYP
MAX
6
6
6
6
6
6
6
6
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
WOLFSON MICROELECTRONICS LTD
AI Rev 2.0 April 2001
9