A multiphase delay-locked loop for 0.125-2Gbps 0.18μm CMOS transmitter

Yongsam Moon, Daeyun Shim

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

Abstract

A 0.18-μm CMOS DLL generates equally-spaced multiphase clocks over 16x range from 31.25 to 500MHz using a duty-cycle corrector and a lock detector with 32x lock range, which is at least 3.5x wider comparing with conventional multiphase DLL's. Measured TX data eyes have <4% eye unevenness, which is equivalent to <1% clock unevenness, over the data rates of 0.125 to 2Gbps.

Original languageEnglish
Title of host publication2006 Symposium on VLSI Circuits, VLSIC - Digest of Technical Papers
Pages35-36
Number of pages2
StatePublished - 2006
Event2006 Symposium on VLSI Circuits, VLSIC - Honolulu, HI, United States
Duration: 15 Jun 200617 Jun 2006

Publication series

NameIEEE Symposium on VLSI Circuits, Digest of Technical Papers

Conference

Conference2006 Symposium on VLSI Circuits, VLSIC
Country/TerritoryUnited States
CityHonolulu, HI
Period15/06/0617/06/06

Keywords

  • DLL
  • Duty cycle
  • Lock detector
  • Multiphase

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