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Active and Passive Electronic Components
Volume 2017 (2017), Article ID 9703029, 10 pages
Research Article

Investigation and Analysis of the Simultaneous Switching Noise in Power Distribution Network with Multi-Power Supplies of High Speed CMOS Circuits

1Laboratory of Electrical Systems and Telecommunications, Department of Physics, Faculty of Sciences and Technology, Cadi Ayyad University, Marrakesh, Morocco
2Department of Electrical Engineering, Royal Air Academy (ERA), Marrakesh, Morocco

Correspondence should be addressed to Khaoula Ait Belaid

Received 9 June 2017; Accepted 17 August 2017; Published 28 September 2017

Academic Editor: Gerard Ghibaudo

Copyright © 2017 Khaoula Ait Belaid et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The paper studies a simultaneous switching noise (SSN) in a power distribution network (PDN) with dual supply voltages and two cores. This is achieved by reducing the admittance matrix of the PDN then calculating frequency domain impedance with rational function approximation using vector fitting. This paper presents a method of computing the simultaneous switching noise through a switching current, whose properties and details are described. Thus, the results are discussed and performed using MATLAB and PSpice tools. It demonstrated that the presence of many cores in the same PCB influences the SSN due to electromagnetic coupling.