Circuit for and method of changing a frequency in a circuit

Details Circuit for and method of changing a frequency in a circuit Circuit for and method of changing a frequency in a circuit

2005-06-29

2009-12-22

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synthesizer

C327S106000, C327S107000

Reexamination Certificate

active

07635997

ABSTRACT:
The circuits and methods of the various embodiments of the present invention enable changing the frequency of a frequency synthesizer. According to one embodiment, a method of changing a frequency of a clock signal generated by a frequency synthesizer comprises the steps of receiving a reference clock signal; receiving a command comprising a new frequency synthesizer value; locking to a new frequency based upon the new frequency synthesizer value; and dynamically outputting a generated clock signal based upon the new frequency synthesizer value. According to another embodiment, a method of changing a frequency of a clock signal comprises adaptively adjusting the digital loop bandwidth of the frequency synthesizer. A circuit for changing a frequency of a clock signal generated in an integrated circuit is also disclosed.

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