Design of 20Gb/s PAM4 Transmitter with Maximum Transition Elimination and Transition Compensation Techniques

Kyeong Min Ko, Dohyeon Kwon, Jin Ku Kang

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

3 Scopus citations

Abstract

In this paper, a pulse amplitude modulation 4-level (PAM4) transmitter with maximum transition elimination (MTE) and transition compensation technique is presented. In the PAM4 signal, inter-symbol interference (ISI) and crosstalk noise are more affected by the maximum transition than the middle or the minimum transition. The proposed PAM4 transmitter uses a encoder mapping data into maximum transition eliminated data. The proposed PAM4 transmitter also uses the transition compensation (TC) technique with an additional logic and driver expanding a middle eye in a output eye-diagram to balance middle eye with top, bottom eye. Compared to the original PAM4 transmitter, the top and the bottom eye height and width of the PAM4 transmitter with MTE encoder are expanded about 50%. With TC technique, the difference between eyes areas is reduced to less than 15%.

Original languageEnglish
Title of host publicationProceedings - International SoC Design Conference 2021, ISOCC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages405-406
Number of pages2
ISBN (Electronic)9781665401746
DOIs
StatePublished - 2021
Event18th International System-on-Chip Design Conference, ISOCC 2021 - Jeju Island, Korea, Republic of
Duration: 6 Oct 20219 Oct 2021

Publication series

NameProceedings - International SoC Design Conference 2021, ISOCC 2021

Conference

Conference18th International System-on-Chip Design Conference, ISOCC 2021
Country/TerritoryKorea, Republic of
CityJeju Island
Period6/10/219/10/21

Bibliographical note

Publisher Copyright:
© 2021 IEEE.

Keywords

  • Eye-diagram
  • Maximum transition elimination (MTE)
  • Pulse Amplitude Modulation 4-Level(PAM4)
  • Transition Compensation (TC)

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