A global driver sizing tool for functional crosstalk noise avoidance

Abstract

As coupling noise analysis and estimation is reaching a relative maturity with recent efforts, more effort is needed in correcting and/or avoiding failures that can be caused by coupling noise. In this paper, we present a global driver sizing tool which can be used in a complete noise avoidance tool along with other techniques such as wire spacing and wire sizing. The proposed approach is used along with ClariNet, which is a recent noise analysis tool, in a greater effort towards a total signal integrity solution. We first present the analytical, linear interconnect model used. We then show how this model is used to provide necessary information for global driver sizing along with our novel algorithm. We finally present results on two industrial circuits including a large high performance control block.