Voltage-controlled oscillator having independent output...

Details Voltage-controlled oscillator having independent output... Voltage-controlled oscillator having independent output...

2006-12-30

2009-12-29

Pascal, Robert (Department: 2817)

Oscillators

Ring oscillators

C331S015000, C331S182000, C331S185000

Reexamination Certificate

active

07639093

ABSTRACT:
In one embodiment, a voltage-controlled oscillator is provided having an output signal whose frequency is responsive to a tuning signal and is independent of amplitude of oscillation. The voltage-controlled oscillator includes: a plurality of differential inverter stages coupled to form a loop, each differential inverter stage having a differential pair of transistors configured to steer a tail current from a current source, the current source sourcing the tail current responsive to a feedback signal; and a control circuit configured to generate the feedback signal responsive to a reference signal such that an amplitude of the output signal is independent of the tuning signal and depends on the reference signal, and the frequency of oscillation is decoupled from the amplitude of oscillation.

REFERENCES:
patent: 5563553 (1996-10-01), Jackson
patent: 5748048 (1998-05-01), Moyal
patent: 6414556 (2002-07-01), Mizuno

Affiliated with

Also associated with

Rating

Voltage-controlled oscillator having independent output... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Voltage-controlled oscillator having independent output..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage-controlled oscillator having independent output... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4110049