A 0.3-V power supply 2.4-GHz-band Class-C VCO IC with amplitude feedback loop in 65-nm CMOS

Xin Yang; Yorikatsu Uchida; Kangyang Xu; Wei Wang; Toshihiko Yoshimasu

doi:10.1007/s10470-014-0351-8

A 0.3-V power supply 2.4-GHz-band Class-C VCO IC with amplitude feedback loop in 65-nm CMOS

Xin Yang, Yorikatsu Uchida, Kangyang Xu, Wei Wang, Toshihiko Yoshimasu^*

^*Corresponding author for this work

Graduate School of Information, Production and Systems

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A Class-C voltage-control-oscillator (VCO) IC with an amplitude feedback loop for ultra-low-voltage application is proposed. The Class-C VCO consists of an LC-VCO circuit and an amplitude feedback loop to shift LC-VCO bias condition from initial Class-AB start-up to steady Class-C low current oscillation. The amplitude feedback loop is formed by a detector and a comparator with low voltage supply. The LC-VCO IC has been designed, fabricated and fully evaluated using 65-nm CMOS technology. The fabricated Class-C VCO IC exhibits a measured phase noise of -111 dBc/Hz at 1 MHz offset from the 2.43 GHz carrier frequency at a supply voltage of only 0.3 V.

Original language	English
Pages (from-to)	583-591
Number of pages	9
Journal	Analog Integrated Circuits and Signal Processing
Volume	81
Issue number	3
DOIs	https://doi.org/10.1007/s10470-014-0351-8
Publication status	Published - 2014 Dec 2

Keywords

65-nm CMOS
Class-C
LC-VCO
Low voltage

ASJC Scopus subject areas

Signal Processing
Hardware and Architecture
Surfaces, Coatings and Films

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10.1007/s10470-014-0351-8

Cite this

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title = "A 0.3-V power supply 2.4-GHz-band Class-C VCO IC with amplitude feedback loop in 65-nm CMOS",

abstract = "A Class-C voltage-control-oscillator (VCO) IC with an amplitude feedback loop for ultra-low-voltage application is proposed. The Class-C VCO consists of an LC-VCO circuit and an amplitude feedback loop to shift LC-VCO bias condition from initial Class-AB start-up to steady Class-C low current oscillation. The amplitude feedback loop is formed by a detector and a comparator with low voltage supply. The LC-VCO IC has been designed, fabricated and fully evaluated using 65-nm CMOS technology. The fabricated Class-C VCO IC exhibits a measured phase noise of -111 dBc/Hz at 1 MHz offset from the 2.43 GHz carrier frequency at a supply voltage of only 0.3 V.",

keywords = "65-nm CMOS, Class-C, LC-VCO, Low voltage",

author = "Xin Yang and Yorikatsu Uchida and Kangyang Xu and Wei Wang and Toshihiko Yoshimasu",

note = "Funding Information: Acknowledgments This work is supported by Japan Society for the Promotion of Science (JSPS) KAKENHI Grant-in-Aid for Scientific Research Number 23360162. This work is supported by VDEC, University of Tokyo in collaboration with Cadence Design Systems Inc, Mentor Graphics Inc, and Agilent Technologies Japan Ltd. Publisher Copyright: {\textcopyright} 2014, Springer Science+Business Media New York.",

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doi = "10.1007/s10470-014-0351-8",

language = "English",

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AU - Yang, Xin

AU - Uchida, Yorikatsu

AU - Xu, Kangyang

AU - Wang, Wei

AU - Yoshimasu, Toshihiko

N1 - Funding Information: Acknowledgments This work is supported by Japan Society for the Promotion of Science (JSPS) KAKENHI Grant-in-Aid for Scientific Research Number 23360162. This work is supported by VDEC, University of Tokyo in collaboration with Cadence Design Systems Inc, Mentor Graphics Inc, and Agilent Technologies Japan Ltd. Publisher Copyright: © 2014, Springer Science+Business Media New York.

PY - 2014/12/2

Y1 - 2014/12/2

N2 - A Class-C voltage-control-oscillator (VCO) IC with an amplitude feedback loop for ultra-low-voltage application is proposed. The Class-C VCO consists of an LC-VCO circuit and an amplitude feedback loop to shift LC-VCO bias condition from initial Class-AB start-up to steady Class-C low current oscillation. The amplitude feedback loop is formed by a detector and a comparator with low voltage supply. The LC-VCO IC has been designed, fabricated and fully evaluated using 65-nm CMOS technology. The fabricated Class-C VCO IC exhibits a measured phase noise of -111 dBc/Hz at 1 MHz offset from the 2.43 GHz carrier frequency at a supply voltage of only 0.3 V.

AB - A Class-C voltage-control-oscillator (VCO) IC with an amplitude feedback loop for ultra-low-voltage application is proposed. The Class-C VCO consists of an LC-VCO circuit and an amplitude feedback loop to shift LC-VCO bias condition from initial Class-AB start-up to steady Class-C low current oscillation. The amplitude feedback loop is formed by a detector and a comparator with low voltage supply. The LC-VCO IC has been designed, fabricated and fully evaluated using 65-nm CMOS technology. The fabricated Class-C VCO IC exhibits a measured phase noise of -111 dBc/Hz at 1 MHz offset from the 2.43 GHz carrier frequency at a supply voltage of only 0.3 V.

KW - 65-nm CMOS

KW - Class-C

KW - LC-VCO

KW - Low voltage

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A 0.3-V power supply 2.4-GHz-band Class-C VCO IC with amplitude feedback loop in 65-nm CMOS

Abstract

Keywords

ASJC Scopus subject areas

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