A phase locked loop circuit comprising: an input terminal configured to receive an input signal; a phase detector configured to compare the phase of the input signal with the phase of a feedback signal in order to provide an up-phase signal and a down-phase-signal, wherein the difference between (i) a property of the up-phase signal; and (ii) a property of the down-phase-signal, is indicative of a phase difference between the input signal and the feedback signal; an oscillator-driver configured to: apply an up-weighting-value to the up-phase signal in order to provide a weighted-up-phase signal; apply a down-weighting-value to the down-phase signal in order to provide a weighted-down-phase signal; and combine the weighted-up-phase signal with the weighted-down-phase signal in order to provide an oscillator-driver-output-signal; a variable-frequency-oscillator configured to provide the feedback signal for the phase detector, wherein the variable-frequency-oscillator is configured to set the frequency of the feedback signal based on the oscillator-driver-output-signal; a controller configured to: set the up-weighting-value and the down-weighting-value as a first-set-of-unequal-weighting-values, such that a frequency of the variable-frequency-oscillator increases or decreases; and replace the first-set-of-unequal-weighting-values with a second-set-of-unequal-weighting-values if an operating signal of the phase locked loop circuit reaches a limit-value without satisfying a threshold value; and an output terminal configured to provide a local oscillator signal based on the feedback signal. an input terminal configured to receive an input signal; a phase detector configured to compare the phase of the input signal with the phase of a feedback signal in order to provide an up-phase signal and a down-phase-signal, wherein the difference between (i) a property of the up-phase signal; and (ii) a property of the down-phase-signal, is indicative of a phase difference between the input signal and the feedback signal; an oscillator-driver configured to: apply an up-weighting-value to the up-phase signal in order to provide a weighted-up-phase signal; apply a down-weighting-value to the down-phase signal in order to provide a weighted-down-phase signal; and combine the weighted-up-phase signal with the weighted-down-phase signal in order to provide an oscillator-driver-output-signal; apply an up-weighting-value to the up-phase signal in order to provide a weighted-up-phase signal; apply a down-weighting-value to the down-phase signal in order to provide a weighted-down-phase signal; and combine the weighted-up-phase signal with the weighted-down-phase signal in order to provide an oscillator-driver-output-signal; a variable-frequency-oscillator configured to provide the feedback signal for the phase detector, wherein the variable-frequency-oscillator is configured to set the frequency of the feedback signal based on the oscillator-driver-output-signal; a controller configured to: set the up-weighting-value and the down-weighting-value as a first-set-of-unequal-weighting-values, such that a frequency of the variable-frequency-oscillator increases or decreases; and replace the first-set-of-unequal-weighting-values with a second-set-of-unequal-weighting-values if an operating signal of the phase locked loop circuit reaches a limit-value without satisfying a threshold value; and set the up-weighting-value and the down-weighting-value as a first-set-of-unequal-weighting-values, such that a frequency of the variable-frequency-oscillator increases or decreases; and replace the first-set-of-unequal-weighting-values with a second-set-of-unequal-weighting-values if an operating signal of the phase locked loop circuit reaches a limit-value without satisfying a threshold value; and an output terminal configured to provide a local oscillator signal based on the feedback signal.