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WM9712CLGEFL/V Datasheet(PDF) 60 Page - Wolfson Microelectronics plc

Part # WM9712CLGEFL/V
Description  AC??7 Audio and Touchpanel CODEC
PDF  78 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM9712CLGEFL/V Datasheet(HTML) 60 Page - Wolfson Microelectronics plc

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WM9712L
Production Data
w
PD, Rev 4.6, November 2011
60
SIGNAL RISE AND FALL TIMES
BITCLK
SYNC
SDATAIN
SDATAOUT
t
rise
CLK
t
fall
CLK
t
rise
SYNC
t
fall
SYNC
t
rise
DIN
t
fall
DIN
t
rise
DOUT
t
fall
DOUT
Figure 19 Signal Rise and Fall Times (50pF External Load)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
Incoming signals (from the AC’97 controller to the WM9712L)
SDATAOUT rise time
triseDOUT
6
ns
SDATAOUT fall time
tfallDOUT
6
ns
SYNC rise time
triseSYNC
6
ns
SYNC fall time
tfallSYNC
6
ns
Outgoing signals (from the WM9712L to the AC’97 controller)
BITCLK rise time
triseCLK
2
6
ns
BITCLK fall time
tfallCLK
2
6
ns
SDATAIN rise time
triseDIN
2
6
ns
SDATAIN fall time
tfallDIN
2
6
ns
AC-LINK POWERDOWN
SYNC
BITCLK
SDATAOUT
WRITE
TO 0X20
DATA PR4
DON'T
CARE
SDATAIN
SLOT 1 SLOT 2
t
S2_PDOWN
Figure 20 AC-Link Powerdown Timing
AC-Link powerdown occurs when PR4 (register 26h, bit 12) is set (see “Power Management” section).
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
End of Slot 2 to BITCLK and SDATAIN
low
tS2_PDOWN
1.0
s



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