A two-tone test method for continuous-time adaptive equalizers

  • Authors:
  • Dongwoo Hong;Shadi Saberi;Kwang-Ting (Tim) Cheng;C. Patrick Yue

  • Affiliations:
  • University of California, Santa Barbara, CA;Carnegie Mellon University, Pittsburgh, PA;University of California, Santa Barbara, CA;University of California, Santa Barbara, CA

  • Venue:
  • Proceedings of the conference on Design, automation and test in Europe
  • Year:
  • 2007

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Abstract

This paper describes a novel test method for continuous-time adaptive equalizers. This technique applies a two-sinusoidal-tone signal as stimulus and includes an RMS detector for testing, which incurs no performance degradation and a very small area overhead. To validate the technique, we used a recently published adaptive equalizer as our test case and conducted both behavioral and transistor-level simulations. Simulation results demonstrate that the technique is effective in detecting defects in the equalizer, which might not be easily detected by the conventional eye-diagram method.