Dual steered frequency synthesizer

Details Dual steered frequency synthesizer Dual steered frequency synthesizer

2006-01-24

2006-01-24

Fan, Chieh M. (Department: 2631)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C327S156000, C455S260000

Reexamination Certificate

active

06990164

ABSTRACT:
A frequency synthesizer100comprising a charge pump102, a loop filter104, a loop divider106, and an active and dual port VCO110. An integrator108low pass filters a steering voltage to provide a low frequency path while the steering voltage provides a high frequency path. Both steering paths are connected to dual port VCO110. The dual port VCO110is a single frequency generator which is controlled by two control signals. The dual port VCO110, effectively provides the equivalent of a low frequency path114and a high frequency noise compensation path112, both paths effectively merging116by superposition.

REFERENCES:
patent: 4667170 (1987-05-01), Lofgren
patent: 4755774 (1988-07-01), Heck
patent: 4952889 (1990-08-01), Irwin et al.
patent: 5142246 (1992-08-01), Petersson
patent: 5557244 (1996-09-01), Salvi
patent: 5602514 (1997-02-01), Monk et al.
patent: 5841325 (1998-11-01), Knotts
patent: 6016332 (2000-01-01), Smith et al.
patent: 6191658 (2001-02-01), Fairbanks
patent: 6285640 (2001-09-01), Hayashi
patent: 6389092 (2002-05-01), Momtaz
patent: 6472914 (2002-10-01), Gu et al.
patent: 2001/0015677 (2001-08-01), Choi
patent: 0395109 (1990-10-01), None
patent: 271023 (1996-02-01), None
Connell et al., “A CMOS Broadband Tuner IC,” ISSCC 2002/Session 24/RF Systems/24.3, Solid-State Circuits Conference, Digest of Technical Papers, ISSCC, IEEE International, 3 pgs.

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