250 Mbps-5 Gbps wide-range CDR with digital vernier phase shifting and dual-mode control in 0.13 μm CMOS

Sang Yoon Lee, Hyung Rok Lee, Young Ho Kwak, Woo Seok Choi, Byoung Joo Yoo, Daeyun Shim, Chulwoo Kim, Deog Kyoon Jeong

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A multi-port serial link with wide-range CDR using digital vernier phase shifting and dual-mode control is presented. The proposed vernier phase shifter generates finely-spaced phase steps and provides unlimited phase rotating with a 13.34-ps phase step at 5 Gbps. By inherently digital nature, the vernier phase shifter enables semi-digital dual-loop CDR with precise tracking performance, and with the dual-mode control, the proposed CDR extends the operating range from 250 Mbps to 5 Gbps and achieves a BER of less than 10-12 at 5 Gbps with 29-1 PRBS. Fabricated in a 0.13-μm CMOS process, the main PLL and the single receiver dissipate 9.0 mW and 19.2 mW respectively at 5 Gbps from a 1.2 V supply.

Original languageEnglish
Article number6007146
Pages (from-to)2560-2570
Number of pages11
JournalIEEE Journal of Solid-State Circuits
Volume46
Issue number11
DOIs
Publication statusPublished - 2011 Nov 1

Keywords

  • Clock and data recovery
  • semi-digital dual-loop
  • vernier phase shifter
  • wide-range CDR

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Lee, S. Y., Lee, H. R., Kwak, Y. H., Choi, W. S., Yoo, B. J., Shim, D., Kim, C., & Jeong, D. K. (2011). 250 Mbps-5 Gbps wide-range CDR with digital vernier phase shifting and dual-mode control in 0.13 μm CMOS. IEEE Journal of Solid-State Circuits, 46(11), 2560-2570. [6007146]. https://doi.org/10.1109/JSSC.2011.2164032