Abstract: The present invention is directed to a method and arrangement for phase-locking to an incoming signal using a fast-acting start-up mode followed by a second steady-state mode of operation. The method includes providing a reference signal by dividing the incoming signal by m during a phase-lock initiation stage and by dividing by n thereafter, providing an output signal having a frequency that is synchronized to the incoming signal when the arrangement is phase-locked to the incoming signal, and providing a feedback signal by dividing the output signal by x during a phase-lock initiation stage and by dividing by y thereafter. A phase difference between the feedback and reference signals is detected and the frequency-controllable oscillator is controlled, so that the frequency of the output signal is synchronized to the incoming signal.