Delay model for dynamically switching coupled RLC interconnects

¹ Department of Electronics and Communication Engineering, Meerut Institute of Engineering and Technology, Meerut 250005, India
² Department of Electronics and Communication Engineering, Indian Institute of Technology, Roorkee 247667, India
³ Department of Electronics and Communication Engineering, National Institute of Technology, Kurukshetra 136119, Haryana, India

^a e-mail: brajesh_k_k@yahoo.com

Received: 17 August 2013
Revised: 21 November 2013
Accepted: 10 March 2014
Published online: 24 April 2014

Abstract

With the evolution of integrated circuit technology, the interconnect parasitics can be the limiting factor in high speed signal transmission. With increasing frequency of operation, length of interconnect and fast transition time of the signal, the RC models are not sufficient to estimate the delay accurately. To mitigate this problem, accurate delay models for coupled interconnects are very much required. This paper proposes an analytical model for estimating propagation delay in lossy coupled RLC interconnect lines for simultaneously switching scenario. To verify the proposed model, the analytical results are compared with those of FDTD and SPICE results for the two cases of inputs switching under consideration. An average error of 2.07% is observed which shows an excellent agreement with SPICE simulation and FDTD computations.