Title: A 2-GHz low-phase-noise integrated LC-VCO set with flicker-noise upconversion minimization
Authors: De Muer, Bram ×
Borremans, Marc
Steyaert, Michel
Puma, GL #
Issue Date: Jul-2000
Publisher: Ieee-inst electrical electronics engineers inc
Series Title: IEEE Journal of Solid-State Circuits vol:35 issue:7 pages:1034-1038
Abstract: A fully integrated 2-GHz very low-phase-noise LC-tank voltage-controlled oscillator (VCO) set with flicker noise upconversion minimization is presented. Using only integrated planar inductors, the measured phase noise is as low as -125.1 dBc/Hz at 600-kHz offset and -138 dBc/Hz at 3 MHz, The excellent phase-noise performance is achieved by means of an in-house-developed integrated inductor simulator-optimizer, To minimize the upconversion of flicker noise to 1/f(3) phase noise, a flicker-noise upconversion factor is defined, which can easily be extracted from circuit simulation, The technique is applied to demonstrate the relationship between the flicker-noise upconversion and the overdrive level of the oscillators' MOS cross-coupled pair and to develop circuit balancing techniques to even further reduce the flicker-noise upconversion. The 1/f(3) phase-noise corner is minimized to be less than 15 kHz. The VCO's are implemented in a three-metal layer, 0.65-mu m BiCMOS process, using only MOS active devices.
ISSN: 0018-9200
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - MICAS, Microelectronics and Sensors
Electrical Engineering - miscellaneous
× corresponding author
# (joint) last author

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