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AUTOMode[CKSEL =ERROR]
XTIMode[CKSEL =High]
PLL Mode[CKSEL =Low]
DIR9001Status
Note: means clock source change.
RXIN
Non-Biphase
Biphase Non-Biphase
Unlock
Unlock
CLKST
t
CLKST
ERROR
Lock Up Time
XTO
MUTE (Low)
Demodulated Data
DOUT
XTI Source
XTO
XTI Source
DOUT
Always MUTE (Low)
XTI SourceXTO
XTI Source
PLL Source XTI Source
DOUT
MUTE (Low)
Lock
Demodulated Data
Built-InPLL
Status
SCKO,BCKO,
LRCKO
SCKO,BCKO,
LRCKO
MUTE(Low)
MUTE(Low)
SCKO,BCKO,
LRCKO
XTISource
PLL Source
(Transition)
PLL Source
(LockFrequency)
PLL Source
(Transition)
PLL Source
(Free-Run)
t
CLKST
PLL Source
(Free-Run)
DIR9001
SLES198 – DECEMBER 2006
PARAMETERS MIN TYP MAX UNIT
t
CLKST
CLKST pulse duration, high 4 20 µ s
Figure 6. Lock-In and Unlock Process
12
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