同步和GALS系统的地面弹跳和衬底噪声的频域建模

2015 25th International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS) Pub Date : 2015-12-07 DOI:10.1109/PATMOS.2015.7347597

M. Babić, Xin Fan, M. Krstic

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引用次数: 6

摘要

在这项工作中，对同步和GALS(全局异步，局部同步)系统的地面弹跳噪声进行了频域建模和分析。通过MATLAB的数值仿真验证了分析结果的正确性。封装寄生和配电网络用简单的集总模型进行了粗略的建模，而开关电流则被建模为周期三角形脉冲。确定了光谱的主要成分，并讨论了它们的分布对衬底建模要求的影响。结果表明，电阻基板近似对于去耦电容较小的系统误差较大，而对于去耦电容较大的系统误差较小。

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Frequency-domain modeling of ground bounce and substrate noise for synchronous and GALS systems

In this work, the ground bounce noise has been modeled and analyzed in frequency domain, for both synchronous and GALS (globally asynchronous, locally synchronous) systems. The analysis has been performed analytically, and validated by numerical simulations in MATLAB. Package parasitics and power distribution network have been coarsely modeled by a simple lumped model, while switching currents have been modeled as periodic triangular pulses. Dominant components of spectrum are determined, and the impact of their distribution on the requirements for substrate modeling has been discussed. It has been concluded that resistive substrate approximation introduces large errors for systems with small decoupling capacitances, while it can be satisfactory for systems with large decoupling capacitances.

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来源期刊

2015 25th International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS)

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