JSTS:Journal of Semiconductor Technology and Science

The Institute of Electronics and Information Engineers (대한전자공학회)
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EMI Issues in Pseudo-Differential Signaling for SDRAM Interface

  • Jang, Young-Jae (Department of Electronic and Electrical Engineering from POSTECH) ;
  • Yi, Il-Min (Department of Electronic and Electrical Engineering from POSTECH) ;
  • Kim, Byungsub (Department of Electronic and Electrical Engineering from POSTECH) ;
  • Sim, Jae-Yoon (Department of Electronic and Electrical Engineering from POSTECH) ;
  • Park, Hong-June (Department of Electronic and Electrical Engineering from POSTECH)
  • Received : 2015.04.15
  • Accepted : 2015.07.22
  • Published : 2015.10.30
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Abstract

H-field EMI measurements have been performed for the single-ended, the differential, and the pseudo-differential signaling on a 11" FR4 microstrip line. The pseudo-differential signaling reduces EMI by more than 10 dB compared to the single-ended signaling if the delay mismatch is lower than 5% of a period for a 3 GHz clock signal. Empirical H-field equations for both differential and single-ended signaling showed fair agreements with measurements.

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References

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