Controllable phase locked loop with output oscillation...

Details Controllable phase locked loop with output oscillation... Controllable phase locked loop with output oscillation...

2007-04-10

2007-04-10

Mis, David (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Particular frequency control means

C331S016000, C331S025000, C331S057000, C455S260000

Reexamination Certificate

active

11126553

ABSTRACT:
A phase locked loop circuit is implemented with difference detection module that produces a difference signal based on at least one of phase difference and frequency difference between a reference oscillation and a feedback oscillation. A loop filter module converts the difference signal into a control signal. A controlled oscillation module converts the control signal into an output oscillation. An output oscillation adjust module, coupled to the controlled oscillation module, produces an effective output oscillation based on an oscillation control signal. A divider module converts the effective output oscillation into the feedback oscillation.

REFERENCES:
patent: 5059924 (1991-10-01), JenningsCheck
patent: 5394116 (1995-02-01), Kasturia
Chan-Hong Park, et al; A 1.8-GHz Self-Calibrated Phase-Locked Loop with Precise I/Q Matching; IEEE Journal of Solid-State Circuits, vol. 36, No. 5, May 2001; p. 777-783.

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