A spread spectrum clock generator with spread ratio error reduction scheme for DisplayPort main link

Won Young Lee, Lee Sup Kim

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

2 Scopus citations

Abstract

In this paper, a spread spectrum clock generator (SSCG) with a process variation compensator for DisplayPort main link is presented. The process variation compensator not only reduces the error of spread ratio but also guarantees the reliability of the operation of an SSCG against process variation. The proposed SSCG has been implemented in 0.18-μm CMOS process and supports 10-phase 270 MHz and 162 MHz output clock. The experimental results show that the average rms jitter of 270 MHz output clock is 4.7 ps without spread spectrum clocking. 8.75 dBm of the peak reduction and 5000 ppm of spread ratio with the process variation compensator are achieved.

Original languageEnglish
Title of host publication2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Pages185-188
Number of pages4
DOIs
StatePublished - 2009
Event2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009 - Taipei, Taiwan, Province of China
Duration: 24 May 200927 May 2009

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Conference

Conference2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Country/TerritoryTaiwan, Province of China
CityTaipei
Period24/05/0927/05/09

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