DocumentCode
823086
Title
2.4 GHz CMOS VCO with multiple tuning inputs
Author
Hammer, P.B.M. ; Bakken, P.M.
Author_Institution
Dept. of Telecommun., Norwegian Univ. of Sci. & Technol., Trondheim, Norway
Volume
38
Issue
16
fYear
2002
fDate
8/1/2002 12:00:00 AM
Firstpage
874
Lastpage
876
Abstract
A fully integrated 2.4 GHz inductance-capacitance (LC)-tuned complementary metal-oxide-semiconductor (CMOS) voltage-controlled oscillator (VCO) with multiple tuning inputs is presented. The frequency tuning is achieved by use of four parallel, inversion mode NMOS varactors, each with its individual control electrode. It is demonstrated how the use of some of the inputs for coarse tuning can be used to keep down the VCO gain while still covering a wide frequency band. This could be useful as a means of reducing the sensitivity to noise
Keywords
CMOS analogue integrated circuits; UHF integrated circuits; UHF oscillators; circuit tuning; integrated circuit noise; transceivers; varactors; voltage-controlled oscillators; 2.4 GHz; CMOS; RF transceivers; VCO; VCO gain; frequency tuning; inductance-capacitance-tuned oscillator; inversion mode NMOS varactors; multiple tuning inputs; noise sensitivity;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20020577
Filename
1033820
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