Fully integrated high-speed voltage controlled ring oscillator

Details Fully integrated high-speed voltage controlled ring oscillator Fully integrated high-speed voltage controlled ring oscillator

1987-06-05

1989-11-28

LaRoche, Eugene R.

Oscillators

Ring oscillators

331111, H03B 500

Patent

active

048840416

ABSTRACT:
An N ring element ring oscillator merged with an M element ring oscillator by using a linear combining circuit. By adjusting the control voltage, the oscillation frequency can be varied from 1/2*N*T.sub.d (where T.sub.d is a gate delay) to 1/2*M*T.sub.d. Other embodiments provide extended frequency tuning range.

REFERENCES:
"Gigahertz Voltage-Controlled Ring Oscillator", Electronics Letters, Jun. 5, 1986, vol. 22, No. 12.

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