Patent ID: 8456202

Claim:
An apparatus comprising: an inductor; a plurality of sets of cross-coupled transistors, wherein each transistor from each set of cross-coupled transistors is coupled to the inductor; an input circuit that is configured to receive an input signal, that is coupled to each transistor from the sets of cross-coupled transistors, wherein the input signal has a first frequency; a control circuit having a plurality of portions, wherein each portion is coupled to at least one transistor from at least one of the sets of cross-coupled, and wherein each portion includes: a first transistor having a first passive electrode, a second passive electrode, and a control electrode, wherein the control electrode of the first transistor is configured to receive a control signal; and a second transistor having a first passive electrode, a second passive electrode, and a control electrode, wherein the control electrode of the second transistor is configured to receive the control signal, and wherein the first passive electrode of the second transistor is coupled to the first passive electrode of the first transistor; and a plurality of output terminals, wherein each output terminal is coupled to the inductor, and wherein the output terminals are configured to provide an output signal having a second frequency, and wherein the second frequency is a fraction of the first frequency.