2008, Volume 10, Issue 11
Strategic Study of CAE >> 2008, Volume 10, Issue 11
Analytical delay estimation of coupled RLC interconnects under ramp input
1. Department of Computer Science and Technology, Nanjing University of Science and Technology, Nanjing 210094, China;
2. Department of Electrical and Computer Engineering, College of Engineering and Mines, the University of Arizona, Arizona AZ8742, USA;
3. Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100080, China
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Abstract
The excitation in actual circuits is always nonideal, which has a definite impact on the analysis of interconnect delay. Considering the impact, the analytical delay model is proposed and the analytical delay method based on coupled RLC interconnect is presented. Then the decoupling method is improved and the coupled interconnects model under ramp input is decoupled when analyzing the interconnect segments. Finally the two-pole model is combined with the improved modified one-pole model to simplify the transfer function and the expression of delay of coupled interconnects is proposed. Experimental results demonstrate that the analysis method can evaluate the delay of coupled RLC interconnects effectively.
Keywords
ramp input ; coupled RLC interconnects ; delay ; decoupling ; two-pole model ; improved modified one-pole model
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