A 3-band switched-inductor LC VCO and differential current re-use doubler achieving 0.7-to-11.6 GHz tuning range

Bodhisatwa Sadhu, Sachin Kalia, Ramesh Harjani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

This paper presents a 3-bit switched inductor, 8-bit switched capacitor VCO utilizing frequency aware switch sizing to achieve 157% tuning range (0.7-5.8 GHz). Implemented in 65nm CMOS, the VCO maintains phase noise between -128 and -116 dBc/Hz at 1MHz offset across the tuning range. A current reuse differential frequency doubler extends the tuning range to 0.7-11.6 GHz (177%). The FOMTs of the stand alone VCO as well as that of the VCO-doubler combination vary between 191 to 209 dBc/Hz over their respective tuning ranges.

Original languageEnglish (US)
Title of host publicationProceedings of the 2015 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2015
EditorsDomine Leenaerts
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages191-194
Number of pages4
ISBN (Electronic)9781479976416
DOIs
StatePublished - Nov 25 2015
EventIEEE Radio Frequency Integrated Circuits Symposium, RFIC 2015 - Phoenix, United States
Duration: May 17 2015May 19 2015

Publication series

NameDigest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
Volume2015-November
ISSN (Print)1529-2517

Other

OtherIEEE Radio Frequency Integrated Circuits Symposium, RFIC 2015
CountryUnited States
CityPhoenix
Period5/17/155/19/15

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Keywords

  • Arrays
  • Capacitors
  • Inductors
  • Phase noise
  • Switches
  • Tuning
  • Voltage-controlled oscillators

Cite this

Sadhu, B., Kalia, S., & Harjani, R. (2015). A 3-band switched-inductor LC VCO and differential current re-use doubler achieving 0.7-to-11.6 GHz tuning range. In D. Leenaerts (Ed.), Proceedings of the 2015 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2015 (pp. 191-194). [7337737] (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium; Vol. 2015-November). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/RFIC.2015.7337737