A radiation-hardened-by-design phase-locked loop using feedback voltage controlled oscillator

Seok Min Jung, Meiling Wang

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

6 Scopus citations

Abstract

This paper presents a radiation-hardened-by-design (RHBD) phase-locked loop (PLL) which utilizes a feedback voltage controlled oscillator (FBVCO) to mitigate a single event transient (SET) strike. Whenever the SET pulse attacks the input control voltage of VCO, VCO gives rise to a frequency disturbance and PLL produces a huge jitter at the output clock. The proposed FBVCO consists of an open loop VCO, an integrator and a switched-capacitor resistor. The input transfer function of the FBVCO has a low-pass characteristic so that the FBVCO can reduce any perturbation at the input control voltage. In addition, the proposed RHBD PLL reduces size by using one loop filter (LF) and charge pump (CP) compared to prior works. We simulate the proposed scheme in 130 nm low power CMOS technology at 1.5V supply. The output frequency variation of the proposed PLL from the SET strike is 75% smaller than that of previous PLL at 300 MHz. This RHBD PLL consumes 6.2 mW at 400 MHz output frequency.

Original languageEnglish (US)
Title of host publicationProceedings - International Symposium on Quality Electronic Design, ISQED
PublisherIEEE Computer Society
Pages103-106
Number of pages4
Volume2015-April
ISBN (Print)9781479975815
DOIs
StatePublished - Apr 13 2015
Event16th International Symposium on Quality Electronic Design, ISQED 2015 - Santa Clara, United States
Duration: Mar 2 2015Mar 4 2015

Other

Other16th International Symposium on Quality Electronic Design, ISQED 2015
CountryUnited States
CitySanta Clara
Period3/2/153/4/15

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Keywords

  • loop filter (LF)
  • Phase-locked loop (PLL)
  • radiation-hardened-by-design (RHBD)
  • voltage controlled oscillator (VCO)

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality

Cite this

Jung, S. M., & Wang, M. (2015). A radiation-hardened-by-design phase-locked loop using feedback voltage controlled oscillator. In Proceedings - International Symposium on Quality Electronic Design, ISQED (Vol. 2015-April, pp. 103-106). [7085407] IEEE Computer Society. https://doi.org/10.1109/ISQED.2015.7085407