System and Method for a Phase Detector

摘要

In accordance with an embodiment, a method of detecting a phase difference between a first signal and a second signal include latching a state of the first signal using the second signal as a clock to produce a first latched signal, latching a state of the second signal using the first signal as a clock to produce a second latched signal summing the first latched signal and the second latched signal to produce an indication of whether the first signal is leading or lagging the second signal.

主权项

1. A method of detecting a phase difference between a first signal and a second signal, the method comprising:
latching, using a first gated latch circuit, a state of the first signal using the second signal as a clock to produce a first latched signal; latching, using a second gated latch circuit, a state of the second signal using the first signal as a clock to produce a second latched signal; and summing the first latched signal and the second latched signal to produce an indication of whether the first signal is leading or lagging the second signal.