An Analytic Time Jitter Equation of NRZ Signals in Uniformly Loaded PCB Transmission Lines

Won-Ki PARK  Young-Soo SOHN  Jin-Seok PARK  Hong-June PARK  Soo-In CHO  

IEICE TRANSACTIONS on Electronics   Vol.E84-C   No.9   pp.1264-1266
Publication Date: 2001/09/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Electronic Circuits
time jitter,  loaded transmission line,  digital signal,  inter-symbol interference (ISI),  

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An analytic equation was derived for the time jitter of digital NRZ signals due to inter-symbol interference in the PCB transmission lines loaded by DRAM chips which are located in uniform spacing. The inter-symbol interference is caused by a low-pass filtering effect of the loaded transmission line. Good agreements were observed between the equation and measurements with an average error of 17.5%.