MB15C703 Datasheet, PDF (8/16 Pages) Fujitsu Component Limited. – Built-in IF Band Voltage Controlled Oscillator Mask ROM Frequency Synthesizer

MB15C703
s PHASE COMPARATOR OUTPUT WAVEFORM
fr
fp
tWU
tWL
LD
PLLDo
"Z"
"Z" : High impedance
Notes : • Phase error detection range: −2π to +2π
• Spikes on Do pulse during locking state are output to prevent dead zone
• LD output becomes low when phase error is tWU or more.
• LD output becomes high when phase error 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[s] (Ex.) fOSC = 12.8 MHz : tWU ≥ 625.0 ns
tWL ≤ 16/fOSC[s]
tWL ≤ 1250.0 ns
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