Voltage controlled oscillator (VCO) tuning

Details Voltage controlled oscillator (VCO) tuning Voltage controlled oscillator (VCO) tuning

2007-09-18

2007-09-18

Pascal, Robert (Department: 2817)

Oscillators

L-c type oscillators

C331S03600C, C331S1170FE, C331S1170FE, C331S17700V

Reexamination Certificate

active

11171860

ABSTRACT:
In accordance with certain described implementations, a voltage controlled oscillator (VCO) includes a VCO coarse tuning bank having multiple coarse tuning bank bits. Each coarse tuning bank bit has an associated bit capacitance. The bit capacitances of the coarse tuning bank bits may be selectively engaged using, for example, a single switching transistor for each coarse tuning bank bit.

REFERENCES:
patent: 6226506 (2001-05-01), Welland et al.
patent: 6803829 (2004-10-01), Duncan et al.
patent: 6927637 (2005-08-01), Koh et al.
patent: 6975156 (2005-12-01), Yeh
patent: 7002393 (2006-02-01), Yeh
patent: 7019598 (2006-03-01), Duncan et al.

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