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Author

Choi, Jaehyouk
Integrated Circuits and Systems Lab (ICSL)
Research Interests
  • RF/Analog/Mixed IC design, low power CMOS IC, wired/wireless TRX IC, clock generation IC

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A CMOS highly linear hybrid current/voltage controlled oscillator for wideband polar modulation

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Title
A CMOS highly linear hybrid current/voltage controlled oscillator for wideband polar modulation
Author
Tang, YiwuHu, JianyunPark, JongminChoi, JaehyoukLeung, LincolnNarathong, ChiewcharnSahota, Kamal
Keywords
65 nm CMOS technologies; Current consumption; Current-controlled oscillators; Linear phase modulations; Linear tuning; Phase Locked Loop (PLL); Polar modulation; Temperature compensation
Issue Date
201308
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, v.60, no.8, pp.1991 - 2000
Abstract
A highly linear oscillator is presented for wideband polar modulation. It has both a varactor voltage tuning input for frequency locking and temperature compensation of phase locked loop (PLL) as well as an inductive current tuning input for linear phase modulation of PLL. Implemented in 65 nm CMOS technology, it achieved a frequency tuning gain variation of less than ±2% over more than 32 MHz frequency range meeting the WCDMA polar modulation requirement. At 3.8 GHz and 3 MHz offset, its phase noise is -136.5 dBc/Hz with current consumption of 18 mA from 2.1 V supply.
URI
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DOI
http://dx.doi.org/10.1109/TCSI.2013.2255711
ISSN
1549-8328
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