Reducing Electromagnetic Interference Using Globally Asynchronous Locally Synchronous Approach
Reducing Electromagnetic Interference Using Globally Asynchronous Locally Synchronous Approach
复制标题
使用全局异步局部同步方法减少电磁干扰
DOI：
10.1166/jolpe.2010.1069
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
E. Grass
中科院分区：
文献类型：
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作者：
M. Krstic;Tomasz Król;Xin Fan;E. Grass
本文研究并提出了降低GALS系统中电磁干扰的可能性。基于专门的电磁干扰分析软件工具，设计了几种不同的GALS电路抽象模型，以提取GALS系统的真实电磁干扰特性。基于时钟行为，我们已经能够使用我们的工具分析每个建模系统的当前配置文件，包括频率和时间域。结果已与包括低emi解决方案在内的同步对应物进行了比较。因此，与同步设计相比，当应用低emi GALS方法时，可以实现高达25 dB的降低。最后，我们分析了基于GALS方法粒度的EMI降低。我们分析了高粒度GALS系统减少电磁干扰的限制，并推断了异步系统的结果。
In this paper, the possibilities of reducing EMI in GALS systems are investigated and presented. Based on the special software tool for EMI analysis, several different abstract models of GALS circuits have been designed in order to extract a realistic EMI properties of a GALS system. Based on the clock behavior, we have been able to analyze using our tool the current profile of each modeled system, both in frequency and in time domain. The results have been compared with the synchronous counterparts including low-EMI solutions. As a result, a reduction up to 25 dB can be achieved when applying a low-EMI GALS methodology in comparison to the synchronous designs. Finally, we have analyzed EMI reduction depending on the granularity of GALS approach. We have analyzed the limits of EMI reduction with high granularity GALS systems and extrapolated the results for asynchronous systems.