Voltage controlled oscillator having improved phase noise

Details Voltage controlled oscillator having improved phase noise Voltage controlled oscillator having improved phase noise

2006-05-02

2006-05-02

Mis, David (Department: 2817)

Oscillators

Amplitude control or stabilization

Automatic

C331S03600C, C331S1170FE, C331S175000, C331S17700V, C331S179000

Reexamination Certificate

active

07038552

ABSTRACT:
A frequency agile voltage controlled oscillator is provided in which amplitude control is performed by digitally controlling the current supplied to the oscillator from a current source (10). The use of digital control means that phase noise performance of the oscillator is not degraded by the introduction of noise from the current source controller.

REFERENCES:
patent: 6483391 (2002-11-01), Magoon et al.
patent: 6680655 (2004-01-01), Rogers
patent: 2003/0001684 (2003-01-01), Magoon et al.
patent: 2003/0025566 (2003-02-01), Rogers
patent: 2003/0171106 (2003-09-01), Dunworth et al.
patent: 1333574 (2003-08-01), None
PCT/US2004/032274 International Search Report Apr. 26, 2005.

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