VCO buffer circuit

Details VCO buffer circuit VCO buffer circuit

2005-06-06

2009-02-10

Pascal, Robert (Department: 2817)

Oscillators

Combined with particular output coupling network

C331S045000, C331S057000, C327S066000, C327S298000

Reexamination Certificate

active

07489205

ABSTRACT:
A VCO buffer circuit comprising a first loading means receiving a first signal for loading the VCO at a first input node; a second loading means receiving a second signal for loading the VCO at a second input node; a third loading means coupled to said first loading means for loading the VCO at third input node to thereby balance a load distribution on three nodes of VCO. At least three current controlling means are coupled to each other to form a symmetrical configuration and receive input signals from said first and second loading means for minimizing variations in the oscillation frequency of the VCO. A buffering means is connected to the output of the controlling means for buffering the output of the current controlling means.

REFERENCES:
patent: 6683505 (2004-01-01), West
patent: 6703890 (2004-03-01), Fukui
patent: 7053722 (2006-05-01), Rein et al.
patent: 2003/0038685 (2003-02-01), West

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