Reducing data dependent jitter utilising adaptive FIR pre-emphasis in 0.18 μm CMOS

Marius Goosen, Saurabh Sinha

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Due to advances of technology in multimedia applications in recent years, the demand for high user end bandwidth point to point links has increased significantly. Jitter requirements have become ever more stringent with the increase in high speed serial link data rates. The introduced jitter severely degrades the performance of the high speed serial link. This paper introduces an adaptive FIR pre-emphasis technique as a means to alleviate the problem of limited off-chip bandwidth introducing data dependant jitter. Mathematical as well as SPICE simulation results are presented, together with the implemented integrated circuit layouts of the novel 0.18 μm CMOS implementation. Limited results from the experimentally tested IC are also presented and discussed. The adaptive pre-emphasis technique employed results in a simulated data dependant jitter reduction to less than 12.5% of a unit interval at a data rate of 5 Gb/s and a modelled 30″ FR-4 backplane copper channel.

Original languageEnglish
Pages (from-to)1216-1224
Number of pages9
JournalMicroelectronics Journal
Issue number11
Publication statusPublished - Nov 2011
Externally publishedYes


  • 0.18 μm CMOS
  • Adaptive pre-emphasis
  • Backplane serial link
  • Data dependant jitter
  • FIR pre-emphasis
  • High speed serial link

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering


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