The additive noise response of a charge pump phase-locked loop in the synch
ronous mode of operation has been studied. In order to determine the tracki
ng and noise performances of the loop, mean square values of tracking error
and local oscillator phase jitter have been analytically obtained. Analyti
cal results agree well with the simulation results obtained here and elsewh
ere[3]. The analysis performed can be used in choosing different system par
ameters for optimum system operation.