31% Reduction of power consumption using active inductor at TX and AC termination at RX for a low-power post-LPDDR4 interfaces

Jeongsik Yoo, Yeonho Lee, Yoonjae Choi, Hyunsu Park, Choonghwan Lee, Chulwoo Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A power reduction scheme that uses AC termination at RX and a TX output driver with an active inductor part (AIP) is proposed for a point-to-point post-LPDDR4 interface at 8 Gb/s. AC termination at the receiver I/O can reduce the power consumption by preventing DC power loss. However, this does not match the 50Ω termination, resulting in inter symbol interference (ISI). The proposed AIP in the TX output driver reduces the low-frequency gain and the ISI due to AC termination. This reduces the jitter caused by AC termination of the RX and greatly improves the eye-opening. In this paper, the AC termination at the RX and the AIP in the TX were implemented in a 28-nm CMOS process and operated at 8 Gb/s with a 3 inch FR4 microstrip line. The proposed transceiver chip achieves a peak-to-peak jitter of 43.6 ps and power reduction of 31% compared with chips without AC termination and AIP.

Original languageEnglish
Title of host publicationInternational Conference on Electronics, Information and Communication, ICEIC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-4
Number of pages4
Volume2018-January
ISBN (Electronic)9781538647547
DOIs
Publication statusPublished - 2018 Apr 2
Event17th International Conference on Electronics, Information and Communication, ICEIC 2018 - Honolulu, United States
Duration: 2018 Jan 242018 Jan 27

Other

Other17th International Conference on Electronics, Information and Communication, ICEIC 2018
CountryUnited States
CityHonolulu
Period18/1/2418/1/27

Keywords

  • AC termination
  • active inductor
  • inter symbol interference
  • post-LPDDR4

ASJC Scopus subject areas

  • Information Systems
  • Computer Networks and Communications
  • Computer Science Applications
  • Signal Processing
  • Electrical and Electronic Engineering

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    Yoo, J., Lee, Y., Choi, Y., Park, H., Lee, C., & Kim, C. (2018). 31% Reduction of power consumption using active inductor at TX and AC termination at RX for a low-power post-LPDDR4 interfaces. In International Conference on Electronics, Information and Communication, ICEIC 2018 (Vol. 2018-January, pp. 1-4). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/ELINFOCOM.2018.8330708