Phase detector

A method for comparing phases of first and second signals, the method comprising:

• receiving first and second signals, each signal comprising a respective phase;
• generating, by first circuitry, an indication of a phase difference based on the first and second signals;
• reducing, by second circuitry, an effect of an aberration in at least one of the first and second signals in order to provide a correct indication of the phase difference between the first and second signals;
• outputting, by the first circuitry, a first reset signal;
• and
• outputting, by the second circuitry, a second reset signal,
• wherein the first reset signal and the second reset signal are operative to reset at least a part of the first circuitry, the first reset signal and the second reset signal being independent from one another.

A differential phase detector comprising:

• a phase detector comprising:
• first circuitry in communication with first and second inputs, the first circuitry operative to provide an indication of a phase difference between a first signal received by the first input and a second signal received by the second input;
• and
• second circuitry in communication with the first circuitry, the second circuitry operative to reduce an effect of an aberration and to provide a correct indication of the phase difference;
• and
• a charge pump in communication with an output of the phase detector,
• wherein the first circuitry outputs a first reset signal and the second circuitry outputs a second reset signal such that the first reset signal and the second reset signal are operative to reset at least a part of the first circuitry, the first reset signal and the second reset signal being independent from one another, and
• wherein the differential phase detector provides an output indicative of a radial error.