Generic Model for Multi-Phase Ring Oscillators

Paula C. Pereira, António C. Pinto, Luis B. Oliveira, Jorge R. Fernandes

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

2 Citations (Scopus)

Abstract

We present a generic model for Multiple Phase Ring Oscillators (MPRO) with 2n phases, and derive equations for frequency, phase and phase error under the simplifying approach of injecting the error in a single element. Extensive Monte Carlo simulations, at transistor level, for the four and eight phase circuits, are in accordance with these assumptions. These results are validated by two prototype integrated circuits, implemented in a 130 nm CMOS technology: The first prototype, which is a standalone four phases Ring Oscillator (RO), validates the theoretical analysis concerning the non-linear model main conclusions and, the second prototype, which is an eight phase RO, incorporated as a block of an ISM receiver, validates the generic model for CRO concept.

Original languageEnglish
Title of host publication2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538648810
DOIs
Publication statusPublished - 26 Apr 2018
Event2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Florence, Italy
Duration: 27 May 201830 May 2018

Publication series

NameIEEE International Symposium on Circuits and Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Volume2018-May
ISSN (Print)0271-4302

Conference

Conference2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018
CountryItaly
CityFlorence
Period27/05/1830/05/18

Keywords

  • Coupled Oscillators
  • Coupled Ring Oscillators
  • Multiple Phase Clocks
  • Multiple phase oscillators
  • Multiple phase ring oscillators
  • Oscillators
  • Quadrature oscillators
  • Ring Oscillators

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  • Cite this

    Pereira, P. C., Pinto, A. C., Oliveira, L. B., & Fernandes, J. R. (2018). Generic Model for Multi-Phase Ring Oscillators. In 2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings [8351777] (IEEE International Symposium on Circuits and Systems; Vol. 2018-May). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCAS.2018.8351777