中继站网络中的串扰噪声

A. Korshak
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引用次数: 1

摘要

为了避免在没有准确分析切换活动的情况下对噪声预测的不合理乐观,商业工具必须对攻击者切换做出最保守的假设,这导致在中继器连接的强相关信号的情况下过于悲观的结果。这种对噪声分析的悲观态度掩盖了用于最小化长耦合互连中噪声的交错中继器的效果。在该方法中,我们通过考虑时序和逻辑相关性以及多信号交换来精确地分析具有中继器的耦合网络。我们证明,在交叉中继器用于串扰关键全球互连的设计中,虚假噪声违规数量减少了81%。
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Cross-talk noise in repeater networks
To avoid unjustified optimism in noise prediction in the absence of accurate analysis of switching activity, commercial tools have to make the most conservative assumption about aggressor switching which leads to an overly pessimistic result in situations of strongly correlated signals connected by repeaters. Such pessimism in the noise analysis hides out the effect of interleaved repeaters used to minimize noise in long, coupled interconnects. In the proposed approach we accurately analyze coupled networks with repeaters by considering timing and logical correlations, and multiple signal switching. We demonstrate an 81% reduction in the number of false noise violations in a design where interleaved repeaters are used for crosstalk critical global interconnects.
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Presentation of a new time domain simulation tool and application to the analysis of advanced interconnect performance dependence on design and process parameters Sensitivity analysis of generic on-chip /spl Delta/I-noise simulation methodology A frequency domain approach for efficient model reduction of mixed VLSI circuits Non-uniform grid (NG) algorithm for fast capacitance extraction Dampening high frequency noise in high performance microprocessor packaging
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