Voltage-controlled oscillator and PLL circuit exhibiting high-fr

Details Voltage-controlled oscillator and PLL circuit exhibiting high-fr Voltage-controlled oscillator and PLL circuit exhibiting high-fr

1996-05-15

1997-09-30

Mis, David

Oscillators

Ring oscillators

331 34, 331175, 331177R, H03B 524, H03B 504, H03L 100, H03L 7099

Patent

active

056730080

ABSTRACT:
A voltage-controlled oscillator comprises a plurality of delay circuits connected in a ring configuration. Each of the delay circuits comprises a current source and a differential pair of inverting circuits each supplied with current from the current source. Each of the differential pair of inverting circuits consists of a P-type MOS transistor and an N-type MOS transistor having a drain connected to the drain of the P-type MOS transistor. When a control voltage equal to or higher than the threshold voltage of each N-type MOS transistor is applied to the gate thereof, the voltage at the drain of each P-type MOS transistor oscillates at a frequency corresponding to the control voltage, since each N-type MOS transistor exhibits a linear current characteristic with respect to the control voltage.

REFERENCES:
patent: 5285173 (1994-02-01), Reynolds
patent: 5440277 (1995-08-01), Ewen et al.
patent: 5469120 (1995-11-01), Nguyen et al.
patent: 5525938 (1996-06-01), Monk et al.
patent: 5559476 (1996-09-01), Zhang et al.
patent: 5563554 (1996-10-01), Mizuno

Affiliated with

Also associated with

Rating

Voltage-controlled oscillator and PLL circuit exhibiting high-fr 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 and PLL circuit exhibiting high-fr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage-controlled oscillator and PLL circuit exhibiting high-fr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2259925