Voltage controlled oscillator with controlled load

Details Voltage controlled oscillator with controlled load Voltage controlled oscillator with controlled load

1991-03-29

1992-01-14

Pascal, Robert J.

Oscillators

Ring oscillators

331108B, H03B 100

Patent

active

050814290

ABSTRACT:
A voltage controlled oscillator (VCO) includes a voltage controlled load. The voltage controlled load supplies additional capacitive loading to the VCO, via a transmission gate, at low frequencies to decrease the frequency-gain factor of the VCO. Moreover, at high frequencies, the effect of the voltage controlled load is minimized by turning off the transmission gate thereby allowing the VCO to operate at maximum frequency for worst case speed conditions.

REFERENCES:
patent: 4388537 (1983-06-01), Kanuma
patent: 4656369 (1987-04-01), Lou
patent: 4804929 (1989-02-01), Kato et al.
patent: 4816777 (1989-03-01), Benhamida

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