1.1 to 1.9GHz CMOS VCO for tuner application with resistively tuned variable inductor

Please use this identifier to cite or link to this item: https://doi.org/10.1109/RFIC.2009.5135496

Title:	1.1 to 1.9GHz CMOS VCO for tuner application with resistively tuned variable inductor
Authors:	Cheng, S.J. Zheng, Y. Heng, C.H.
Keywords:	CMOS Magnetic tuning Resistively-tuned Transformer VCOs Wide tuning range
Issue Date:	2009
Citation:	Cheng, S.J.,Zheng, Y.,Heng, C.H. (2009). 1.1 to 1.9GHz CMOS VCO for tuner application with resistively tuned variable inductor. Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium : 87-90. ScholarBank@NUS Repository. https://doi.org/10.1109/RFIC.2009.5135496
Abstract:	A VCO is fabricated in 0.35μ m CMOS technology for tuner application as a proof of concept for a novel method of resistively tuning the inductance of an LC VCO. By employing a transformer as inductor, L is varied by changing the secondary coil current using active resistors. This eliminates the need for using multiple inductors to cover the frequency spectrum of 1.1 to 1.9GHz, resulting in large savings in area. Power consumption is comparable to other known transformer based, magnetic tuning inductance methods due to its single powered VCO core implementation. It draws about 6.8mA from a 3V supply. The achievable tuning range of 1.06 to 1.88GHz (56%) and phase noise of -116.1dBc/Hz is adequate for tuner application. © 2009 IEEE.
Source Title:	Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
URI:	http://scholarbank.nus.edu.sg/handle/10635/68661
ISBN:	9781424433780
ISSN:	15292517
DOI:	10.1109/RFIC.2009.5135496
Appears in Collections:	Staff Publications

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