The output of the phase detector then is:

The output of this divider is taken to the phase detectors.

It is an electronic circuit consisting of a variable frequency oscillator and a phase detector.

The signal from the phase detector is used to control the oscillator in a feedback loop.

This range is usually smaller than the lock range and will depend, for example, on phase detector.

There are several types of phase detectors in the two main categories of analog and digital.

Different types of phase detectors have different performance characteristics.

In these applications the more complex digital phase detectors are used which do not have as severe a reference spur component on their output.

The phase detector needs to compute the phase difference of its two input signals.

If the phase noise is large enough, the phase detector can become unstable.