SM5168 Просмотр технического описания (PDF) - Nippon Precision Circuits
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SM5168 Datasheet PDF : 9 Pages
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SM5168 series
DO Output Timing
The phase comparator error signal charge pump signal is output on DO with polarity for connection to an
external passive filter. The signals compared are FV and FR, which are the internal comparator frequency
divider output signal and reference frequency divider output signal, respectively. The timing is shown in the
following figure.
FR
FV
DO
LD
INPUT/OUTPUT EQUIVALENT CIRCUITS
DO
FIN
Lagging
correction signal
Leading
correction signal
DO
FIN
TR
TEST
TYP100kΩ
To
internal counter
From
internal circuit
TR
To internal circuit
TEST
To
internal circuit
LD
From internal circuit
XIN
LD
XIN
TYP100kΩ
To
internal counter
From
internal circuit
SEIKO NPC CORPORATION —8
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