MB15C100 Datasheet, PDF (9/28 Pages) Fujitsu Component Limited. – IF Band PLL Frequency Synthesizer

s PHASE DETECTOR TIME CHART
fr
MB15C100 Series
fp
tWU
tWL
LD
DO
High impedance
Note: • Phase defference detection range = –2π to + 2π
• Spikes on Do pulse during locking state are output to prevent dead zone.
• LD output becomes low when phase difference is tWU or more.
• LD output becomes high when phase difference is tWL or less and continues to be so for three cycles or
more.
• tWU and tWL depend on OSCin input frequency
tWU 8/fOSC: i.e. tWU 625 ns, fOSCin = 12.8 MHz
tWL 16/fOSC: i.e. tWL 1250 ns, fOSCin = 12.8 MHz
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