HD155111F Datasheet, PDF (42/44 Pages) Hitachi Semiconductor – RF Single-chip Linear IC for PCN Cellular Systems

HD155111F
The Acquisition response of OPLL using 22 kΩ icurad is shown below. The control voltage of the VCO
was observed by the digital storage oscilloscope.
.8us
us/div
us
us/div
a. from PS mode to 1747MHz lock
b. from PS mode to 1785MHz lock
Figure 42 Acquisition Time (Lock Up Time)