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Frequency and Phase Locked Loops

总结: Any electronic device operating at high frequency bigger than 1GHz needs Phase locked loop such as cell phone or computer.

There are Jitter issues and long lock time issue with current Phase Locked Loop.

This pending patent is to analyse the root cause of the Jitter issues from design

theory to design implementation of current Phase Locked Loop and to provide

solutions to significantly remove most Jitters (long term jitter, cycle-to-cycle jitter

etc), to reduce lock time from 10 ms down to about 10 us level and to achieve

high static frequency and phase accuracy(better than 50ppm).

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