MB15E07SR Datasheet, PDF (14/25 Pages) Fujitsu Component Limited. – Single Serial Input PLL Frequency Synthesizer On-chip 2.5 GHz Prescaler

MB15E07SR
■ PHASE COMPARATOR OUTPUT WAVEFORM
fr
fp
LD
[FC = “H”]
DO
tWU
tWL
[FC = “L”]
DO
Notes : • Phase error detection range: –2 π to +2 π
• Pulses on Do signal during locked state are output to prevent dead zone.
• 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 cycles or more.
• tWU and tWL depend on OSCIN input frequency.
tWU > 2/fosc (s) (e. g. tWU > 153.8 ns, fosc = 13 MHz)
tWU < 4/fosc (s) (e. g. tWL < 307.7 ns, fosc = 13 MHz)
• LD becomes high during the power saving mode (PS = “L”).
14