Frequency locked loop speed up
Assignee3Com Corporation
InventorsBrewster T. Hudson, Anthony Eugene Zortea
Life of this patent
Estimating the term…
Abstract
A method in a communication circuit recovers a clock signal. A voltage controlled oscillator is initialized by supplying a predetermined.number of pulses to a charge pump coupled to the voltage controlled oscillator so as to initialize the voltage controlled oscillator to near an operating frequency upon power up of . the clock recovery circuit.
Claims8
A method in a communication circuit for recovering a clock signal, the method comprising initializing a voltage controlled oscillator by supplying a predetermined number of pulses to a charge pump coupled to the voltage controlled oscillator so as to initialize the voltage controlled oscillator to near an operating frequency upon power up of the clock recovery circuit, wherein the predetermined number of pulses are supplied external from the communication circuit.
Dependencies are inferred from the claim text.