Circuits and Methods for a Combined Phase Detector
AssigneeThe Trustees of Columbia University in the City of New York
InventorsPeter R. Kinget, Chunwei Hsu, Shih-An Yu, Karthik Tripurari
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Abstract
Circuits and methods for a combined phase detector are provided. In some embodiments, circuits for a combined phase detector are provided, the circuits comprising: a tri-state phase frequency detector and charge pump that receives a reference signal and a first input signal, and that produces a first output signal; and a sub-sampling phase detector that receives the reference signal and a second input signal, and that outputs a second output signal, wherein the first output signal and the second output signal are coupled together.
Claims18
A circuit for a combined phase detector, comprising:
- a tri-state phase frequency detector and charge pump that receives a reference signal and a first input signal, and that produces a first output signal;
- and
- a sub-sampling phase detector that receives the reference signal and a second input signal, and that outputs a second output signal,
- wherein the first output signal and the second output signal are coupled together.
A circuit for a combined phase detector, comprising:
- means for providing a tri-state phase frequency detector and charge pump that receives a reference signal and a first input signal, and that produces a first output signal;
- and
- means for providing a sub-sampling phase detector that receives the reference signal and a second input signal, and that outputs a second output signal,
- wherein the first output signal and the second output signal are coupled together.
A method for providing a combined phase detector, comprising:
- providing a tri-state phase frequency detector and charge pump that receives a reference signal and a first input signal, and that produces a first output signal;
- and
- providing a sub-sampling phase detector that receives the reference signal and a second input signal, and that outputs a second output signal,
- wherein the first output signal and the second output signal are coupled together.
Dependencies are inferred from the claim text.