A Design of Charge Pump for Low Noise Phase-Locked Loops using Clock Quadrature

Min Yeong Kim, Kang Yoon Lee

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

3 Scopus citations

Abstract

This paper proposes A Design of charge pump for fast rising and falling time and adequate for Sigma Delta Modulation (SDM). Low Noise Phase-Locked Loop (PLL) architecture using reference clock quadrature is shown. The degree of noise performance improvement that can be obtained using clock quadrature is expressed in an expression. To fulfill the speed of the quadrupled reference clock, fully differential charge pump (CP) architecture is used. Also, Implemented the design of a unity gain buffer in charge pump for the optimized operation for Sigma Delta Modulation (SDM) which is also adequate for wide bandwidth PLL because of the high bandwidth and the ability to handle high load current. The proposed structure is implemented using CMOS 40nm process and uses 1.1V supply power.

Original languageEnglish
Title of host publicationProceedings - International SoC Design Conference, ISOCC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages262-263
Number of pages2
ISBN (Electronic)9781728183312
DOIs
StatePublished - 21 Oct 2020
Externally publishedYes
Event17th International System-on-Chip Design Conference, ISOCC 2020 - Yeosu, Korea, Republic of
Duration: 21 Oct 202024 Oct 2020

Publication series

NameProceedings - International SoC Design Conference, ISOCC 2020

Conference

Conference17th International System-on-Chip Design Conference, ISOCC 2020
Country/TerritoryKorea, Republic of
CityYeosu
Period21/10/2024/10/20

Keywords

  • Clock Quadrature
  • Differential Charge Pump
  • Low Noise
  • Phase-Locked-Loops
  • Wide Bandwidth

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