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A 74%, 1.56–2.71 GHz, wide‐tunable LC‐tuned VCO in 0.35‐μm CMOS technology
Author(s) -
Oh SeungMin,
Kim ChangWan,
Lee SangGug
Publication year - 2003
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.10835
Subject(s) - varicap , voltage controlled oscillator , dbc , phase noise , cmos , offset (computer science) , materials science , microwave , electrical engineering , optoelectronics , lc circuit , electronic engineering , engineering , voltage , physics , computer science , telecommunications , electrode , capacitance , capacitor , quantum mechanics , programming language
A wide‐tuning monolithic LC‐tuned VCO is presented. The proposed VCO accomplishes wide tuning by utilizing binary weighted switched varactor combinations operating at minimum or maximum value, in addition to a linearly varying interpolation varactor. Measurements show 74% of tuning at a range of 1.56–2.71 GHz, with the phase noise ranging from −136 dBc/Hz to −108 dBc/Hz at 1 MHz offset. The VCO is implemented in 0.35‐μm CMOS technology and dissipates 10.3 mA from a 3‐V supply. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 37: 98–100, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10835
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