Prediction of Crosstalk Involving Twisted Pairs of Wires-Part II: A Simplified Low-Frequency Prediction Model

In a companion paper [1],a transmission-line simulation model for predicting crosstalk involving twisted-wire pairs was developed. In this paper, a simplified model valid for low frequencies is developed. The total coupling is separated into inductive and capacitive coupling contributions. The capacitive coupling contribution is shown to provide a "floor" which limits the effect of reducing the inductive coupling achieved by twisting a wire pair for the unbalanced case and is zero for the balanced case.