Multi-path voltage-controlled oscillator with same varactor controlled by inputs from different paths and associated method

Abstract

A multi-path voltage-controlled oscillator (VCO) includes a VCO core circuit and a control voltage generator circuit. The VCO core circuit includes a varactor that has a control node for receiving a control voltage. The control voltage generator circuit receives at least one proportional path (P-path) control input and an integral path (I-path) control input, and generates and outputs the control voltage to the control node of the varactor according to the at least one P-path control input and the I-path control input.

Dependencies are inferred from the claim text.