Estimating Power Supply Induced Jitter using S-Parameter based Modeling of Transmission Media

Abstract

Multi-gigahertz designs necessitate precise transmission line modelling. In order to represent high-frequency effects and conductor losses, S-parameters models are used to represent the transmission lines at radio frequencies. In this paper, a method to estimate Power Supply Induced Jitter (PSIJ) for high-speed circuits having transmission lines is presented where the s-parameters based model of transmission lines are used. The proposed approach is validated by comparing it to the standard method of estimating PSIJ by introducing several types of noise sources of different frequencies on the power supply.