Phase locked loop, phase locked loop arrangement, transmitter and receiver and method for providing an oscillator signal

Abstract

A phase locked loop, for a particularly in a beamforming system comprises a loop filter () to provide a control signal (FC) to a controllable oscillator (); a frequency divider () configured to provide a first feedback signal (FB) and a second feedback signal (FBD) in response to an oscillator signal (FO), wherein the second feedback signal (FBD) is delayed with respect to the first feedback signal (FB). An interpolator is configured to receive the first and the second feedback signal (FB) and to provide an interpolated signal thereof between the first and second feedback signal and in response to a phase control word. A comparator path is configured to receive the interpolated signal and to provide a respective signal to the loop filter () in response to a phase deviation between a common reference signal (FR) and the interpolated signal.