VCO gain estimation by capacitive measurement

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United States of America Patent

PATENT NO 9459292
APP PUB NO 20150268279A1
SERIAL NO

14220410

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Abstract

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Aspects of the present disclosure are generally directed to techniques and apparatus for estimating a gain of a VCO in a PLL. In certain aspects, the technique includes calculating a C-V characteristic of a varactor matched to another varactor in the VCO. The technique also includes estimating the gain of the VCO based on the C-V characteristic of the varactor, a tank inductance of the VCO, and an output frequency of the VCO. Aspects of the present disclosure allow for estimating the gain of the VCO while the PLL remains in operation.

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Patent Owner(s)

Patent OwnerAddress
QUALCOMM INCORPORATED5775 MOREHOUSE DRIVE SAN DIEGO CA 92121-1714

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lopelli, Emanuele Irvine, US 13 42
Moloudi, Shervin Los Angeles, US 29 690
Pennisi, Salvatore Irvine, US 9 49
Wang, Charles Chang-I Irvine, US 4 14

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