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AssigneeTexas Instruments Incorporated
InventorsPatrick P. Siniscalchi, William R. Krenik
Estimating the term…
A programmable VCO circuit (300, 700) and method of use are provided whereby a current proportional to the strength of the NMOS process used to fabricate the circuit may be subtracted from the control current derived at the circuit's input, to compensate for process variations. Also, a programmable VCO circuit (300) and method of use are provided whereby a current developed from one-half the supply voltage for the VCO circuit may be subtracted from the control current derived at the circuit's input, in order to cause programmed gain changes to occur about the center of the control voltage range, and minimize output "jitter" when the VCO is used in a phase-locked loop. A gain compensation circuit (800) is also provided to linearize the gain of the programmable VCO circuit (300) for higher control voltage levels and thereby extend the VCO's effective operating range.
A programmable voltage-controlled oscillator, comprising:
A programmable voltage-controlled oscillator, comprising:
A programmable voltage-controlled oscillator for use in a phase-locked loop, comprising:
A method of operating a programmable voltage-controlled oscillator, comprising the steps of:
Dependencies are inferred from the claim text.