MB15E03 Datasheet, PDF (13/22 Pages) Fujitsu Component Limited. – Single Serial Input PLL Frequency Synthesizer On-Chip 1.2 GHz Prescaler

s PHASE COMPARATOR OUTPUT WAVEFORM
MB15E03
fr
fp
tWU
tWL
LD
[ FC = ”H” ]
φP
φR
Do
[ FC = ”L” ]
φP
H
Z
L
φR
H
Do
Z
L
Notes: 1. Phase error detection range: –2π to +2π
2. Pulses on Do output signal during locked state are output to prevent dead zone.
3. LD output becomes low when phase is tWU or more. LD output becomes high when phase error is tWL
or less and continues to be so for three cysles or more.
4. tWU and tWL depend on OSCin input frequency.
tWU > 8/fosc (e. g. tWU > 625ns, foscin = 12.8 MHz)
tWL < 16/fosc (e. g. tWL < 1250ns, foscin = 12.8 MHz)
5. LD becomes high during the power saving mode (PS = ”L”.)
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