A chaotically injected timing technique for ring-based oscillators

Yo Hao Tu, Kuo Hsing Cheng, Wei Ren Wang, Jen Chieh Liu, Hong Yi Huang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

This work proposes a chaotically injected timing technique (CITT) for ring-based oscillators. The quality of clock signal affects the normal motion of the entire circuit. In many oscillators and clock generators show the performance comparison through jitters and phase noise. The injection-locked ring-based oscillators have advantages of jitters, phase noise and area cost. However, there is a contingent effect, injected spur. By adopting the CITT, the injected phase pattern can be randomized and break the periodicity of injected signal to solve the high injected spur effect. The CITT can reduce the level of phase noise by 29 dB compared to the free-run oscillator. The experiment chip of the proposed CITT is implemented by 90 nm CMOS process. The measured output frequency is 5 GHz at supply voltage of 1 V. The level of phase noise is -99 dBc at frequency offset of 1 MHz under injected frequency of 1 GHz.

Original languageEnglish
Title of host publicationFormal Proceedings of the 2016 IEEE 19th International Symposium on Design and Diagnostics of Electronic Circuits and Systems, DDECS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509024674
DOIs
StatePublished - 31 May 2016
Event19th IEEE International Symposium on Design and Diagnostics of Electronic Circuits and Systems, DDECS 2016 - Kosice, Slovakia
Duration: 20 Apr 201622 Apr 2016

Publication series

NameFormal Proceedings of the 2016 IEEE 19th International Symposium on Design and Diagnostics of Electronic Circuits and Systems, DDECS 2016

Conference

Conference19th IEEE International Symposium on Design and Diagnostics of Electronic Circuits and Systems, DDECS 2016
Country/TerritorySlovakia
CityKosice
Period20/04/1622/04/16

Keywords

  • chaotic timing
  • clock signal
  • injected locking
  • injected spur
  • Ring-based oscillator

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