CONTROLLABLE WIDE FREQUENCY RANGE OSCILLATOR

摘要

A circuit includes a ring oscillator that includes a plurality of delay stages coupled in series to generate an output frequency for the ring oscillator. A capacitive array is operatively coupled between a supply rail and a power rail for each of the delay stages to supply power to the delay stages. The capacitive array selectively adjusts the output frequency of the ring oscillator via a capacitive setting of the capacitive array.

主权项

1. A circuit comprising:
a ring oscillator that includes a plurality of delay stages coupled in series to generate an output frequency for the ring oscillator, in which the ring oscillator drives at least one phase clock and at least one complimentary phase clock at the output frequency of the ring oscillator, and in which the phase clock and the complimentary phase clock are employed to activate a pair of switches that charge and discharge at least one capacitor configured in the capacitive array to supply the power for the delay stages; and a capacitive array operatively coupled between a supply rail and a power rail for each of the delay stages to supply power to the delay stages, wherein the capacitive array selectively adjusts the output frequency of the ring oscillator via a capacitive setting of the capacitive array.