Patent ID: 8659338

Claim:
A resonant clock driver for a clock distribution network, comprising: a plurality of drive elements electrically coupled to a clock node of the resonant clock driver, each of the plurality of drive elements configured to receive and propagate a reference clock of the clock distribution network, each of the plurality of drive elements further configured to be selectively enabled by a corresponding enable signal; and a resonance switch electrically coupled to the clock node, the resonance switch configured to selectively enable a resonant mode of operation of the resonant clock driver; wherein, the resonant clock driver selectively controls an overall drive strength of the plurality of drive elements as a function of a current mode of operation of the resonant clock driver, wherein the current mode of operation is either a resonant mode or a non-resonant mode as indicated by the resonance switch, and wherein the drive strength at a given instant is a function of a total number of drive elements enabled by the resonant clock driver at the given instant.