Integrated ring oscillator clock generator
AssigneeChaologix, Inc.
InventorsTimothy Arthur BELL, Daniel F. YANNETTE
Life of this patent
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Abstract
A clock generator includes a series of inverting stages; and at least one combinational logic stage. The series of inverting stages is tapped at two or more locations along the series of inverting stages to provide intermediary outputs. A combinational logic stage of the at least one combinational logic stage is coupled to receive two or more of the intermediary outputs and generate a clock signal. Multi-phase, multi-duty cycle, non-overlapping clock signals can be generated by the clock generator based on different combinations of intermediary outputs. The clock signals can be provided to a switching network.
Claims20
A clock generator comprising:
- a series of inverting stages;
- and
- at least one combinational logic stage,
- wherein the series of inverting stages is tapped at two or more locations along the series of inverting stages to provide intermediary outputs,
- wherein a combinational logic stage of the at least one combinational logic stage is coupled to receive two or more of the intermediary outputs and generate a clock signal.
A system comprising:
- a switching network;
- a clock generator coupled to the switching network, comprising:
- a series of inverting stages, wherein an output of a last inverting stage of the series of inverting stages is fed back to an input of a first inverting stage of the series of inverting stages;
- and
- at least one combinational logic stage,
- wherein the series of inverting stages is tapped at two or more locations along the series of inverting stages to provide intermediary outputs,
- wherein a combinational logic stage of the at least one combinational logic stage is coupled to receive two or more of the intermediary outputs and generate a clock signal for the switching network.
Dependencies are inferred from the claim text.