62.5-250 MHz multi-phase delay-locked loop using a replica delay line with triply controlled delay cells

Yongsam Moon, Jongsang Choi, Kyeongho Lee, Deog Kyoon Jeong, Min Kyu Kim

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

3 Scopus citations

Abstract

This paper describes a low-jitter multi-phase delay-locked loop (DLL) with a wide operating range of 62.5-250 MHz. A replica delay line attached to the core DLL enables it to fully utilize the frequency range of its voltage-controlled delay line. The DLL incorporates dynamic phase detectors and triply controlled delay cells with duty-cycle correction capability to generate equally spaced eight-phase clocks. The chip is fabricated using a 0.35 μm CMOS process. The measured jitter is suppressed to be less than 44 ps peak-to-peak over the operating frequency range in a noisy environment with other digital circuits activated on the same chip.

Original languageEnglish
Title of host publicationProceedings of the Custom Integrated Circuits Conference
PublisherIEEE
Pages299-302
Number of pages4
ISBN (Print)0780354443
StatePublished - 1999
EventProceedings of the 1999 21st IEEE Annual Custom Integrated Circuits Conference, CICC '99 - San Diego, CA, USA
Duration: 16 May 199919 May 1999

Publication series

NameProceedings of the Custom Integrated Circuits Conference
ISSN (Print)0886-5930

Conference

ConferenceProceedings of the 1999 21st IEEE Annual Custom Integrated Circuits Conference, CICC '99
CitySan Diego, CA, USA
Period16/05/9919/05/99

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