Switching noise in power and ground planes with ECL logic

Abstract

A board for measuring the properties of noise in the power/ground plane of high-speed system is described. By using this board it is found that one can quantitatively evaluate the noise diffused from a noise source, but one can estimate the effects of simultaneous switching noise by superimposing the noise from each of the devices, and that the speed of noise propagation depends on the impedance of the ground plane.<>