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Suppression of flicker noise upconversion in a 65nm CMOS VCO in the 3.0-to-3.6GHz band

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4 Author(s)
Levantino, S. ; Politec. di Milano, Milan, Italy ; Zanuso, M. ; Samori, C. ; Lacaita, A.

This work proposes a method to suppress upconversion of flicker noise of switching FETs in LC VCOs over a wide tuning range, without compromising startup and 1/f noise and with no trimming. A demonstrator fabricated in 65 nm CMOS draws 0.6 mA from a 1.2 V supply and exhibits phase noise below -44 dBc/Hz at 1 kHz and -114 dBc/Hz at 1 MHz over the 3.0-to-3.6 GHz tuning range.

Published in:

Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2010 IEEE International
RFIC Virtual Journal, IEEE

Date of Conference:

7-11 Feb. 2010