Patent ID: 6407596
Filing Date: 2002-06-18
Classification: H03K

Abstract:
An apparatus for generating an output signal from a reference clock signal, comprising:a first capacitance circuit; a second capacitance circuit; a charge circuit that charges the first capacitance circuit in response to a first control signal; a discharge circuit that discharges the second capacitance circuit in response to a second control signal; a switch circuit that transfers at least a portion of a charge stored in the first capacitance circuit to the second capacitance circuit in response to a third control signal; a detector circuit that produces a trigger output signal in response to a potential in at least one of the first capacitance circuit and the second capacitance circuit; and a control logic circuit that generates the first, second and third control signals in response to the reference clock signal and the trigger output signal, the control logic circuit also generates the output signal in response to the trigger output signal and the reference clock signal.