PHASE DETECTOR WITH METASTABLE PREVENTION STAGE

摘要

A phase detector, arranged for comparing a phase of a first clock with a phase of a second clock. The phase detector includes a phase detection stage and a metastable prevention stage. The phase detection stage is arranged to receive the first clock and the second clock, and to output a phase comparison result in accordance with the phase of the first clock and the phase of the second clock. The metastable prevention stage is arranged to receive the phase comparison result, and to output a stable phase comparison result in accordance with the phase comparison result.

主权项

1. A phase detector, arranged for comparing a phase of a first clock signal with a phase of a second clock signal, comprising:
a phase detection stage, for receiving the first clock signal and the second clock signal, and outputting a phase detection result according to the phase of the first clock signal and the phase of the second clock signal; and a metastable prevention stage, for receiving the phase detection result, and outputting a stable phase detection result according to the phase detection result.