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Author Berny, A.D. ♦ Niknejad, A.M. ♦ Meyer, R.G.
Sponsorship IEEE Solid-State Circuits Soc. ♦ IEEE Electron Devices Soc
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2003
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Wideband ♦ Voltage-controlled oscillators ♦ Inductors ♦ CMOS process ♦ Varactors ♦ Tuning ♦ Capacitors ♦ Voltage control ♦ Frequency ♦ Resistors
Abstract A CMOS VCO has been designed and fabricated in a commercial 0.25 /spl mu/m CMOS process. Using a combination of switched binary-weighted capacitors and standard varactors, this VCO achieves a 28% tuning range with a control voltage ranging from 0-2 V, while maintaining a tuning sensitivity of less than 75 MHz/V over its entire frequency range. Compact choke inductors are used in place of resistors to provide a low noise bias point to the varactors. The choke inductors achieve more than 90 nH of effective inductance while consuming a die area of only 92/spl times/92 /spl mu/m/sup 2/. The measured single-sided phase noise is -127 dBc/Hz at a 600 kHz offset from a 1.24 GHz carrier when the VCO core is drawing 3.6 mA from a 2 V supply.
Description Author affiliation: Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA (Berny, A.D.; Niknejad, A.M.; Meyer, R.G.)
ISBN 0780378423
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2003-09-24
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 296.53 kB
Page Count 4
Starting Page 555
Ending Page 558


Source: IEEE Xplore Digital Library