High frequency low-gain noise ring-type VCO oscillator leading to a low-noise/area PLL

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United States of America Patent

PATENT NO 9401699
APP PUB NO 20150145608A1
SERIAL NO

14090759

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Abstract

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A phase locked loop includes a voltage-controlled oscillator and a current mirror circuit that supplies a drive current to the voltage-controlled oscillator. The current mirror circuit includes a filter between a bias current generator and current mirror transistor. The filter includes a first and a second switch driven in unison with a small duty cycle.

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Patent Owner(s)

Patent OwnerAddress
STMICROELECTRONICS INTERNATIONAL N V1118 BH SCHIPHOL

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Katyal, Amit Ghaziabad, IN 16 52

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