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A CMOS Injection-Locked Frequency Divider Optimized for Divide-by-Two and Divide-by-Three Operation
University of Naples 2, Italy .
University of Naples 2, Italy .
Linköping University, Department of Electrical Engineering. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering. Linköping University, The Institute of Technology.
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2013 (English)In: IEEE Transactions on Circuits and Systems Part 1: Regular Papers, ISSN 1549-8328, E-ISSN 1558-0806, Vol. 60, no 12, 3126-3135 p.Article in journal (Refereed) Published
Abstract [en]

This paper proposes a simple and effective modification of the conventional divide-by-two injection locked frequency divider (ILFD) with direct-injection aimed at allowing both the divide-by-two and the divide-by-three modes of operation. The proposed circuit does not employ additional inductors as usual in divide-by-three ILFDs, but exploits the combined effect of two independent injection techniques. The resulting locking range for the divide-by-three mode is comparable in size to that for the divide-by-two. Thus, the proposed circuit can be an optimum alternative to existing dividers, due to the flexibility of two division ratios and due to the absence of additional inductors. An intuitive explanation of the locking mechanism underlying this ILFD and a quantitative analysis are provided, allowing one to predict the amplitude and phase of oscillation in the locked mode, as well as the locking range, with approximate closed-form expressions. Measurements on a circuit prototype and results from SPICE simulations demonstrate the effectiveness of the circuit and validate the theoretical model and the resulting formulas.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE) , 2013. Vol. 60, no 12, 3126-3135 p.
Keyword [en]
Analog frequency dividers, averaging method, injection-locked frequency dividers (ILFDs), synchronization, nonlinear oscillators
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-102771DOI: 10.1109/TCSI.2013.2265977ISI: 000327724900005OAI: oai:DiVA.org:liu-102771DiVA: diva2:683911
Available from: 2014-01-07 Created: 2013-12-26 Last updated: 2017-12-06

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf