Spread Spectrum Clock Generator With Adaptive Band

本研究提出了一种用于扩频时钟产生的新型数字时间转换器机制。通过这种方法，某些频谱带可以排除在扩频之外。所提出的方法可用于扩频时钟的高级形式，也适用于功率电路开关电磁干扰的降低和定制。建立在提出的算法是一个自动配置EMI排除。这可以在电路使用时而不是在设计阶段限制周围电路产生的EMI噪声。在我们的FPGA实现上的实验结果表明，在不影响电路功能的情况下，我们提出的方法可以在选择性频带内获得-38到-100[dB]的噪声抑制。

This research has proposed a novel Digital-To-Time Converter mechanism for use in spread-spectrum clock generation. By this, certain spectrum bands can be excluded from spreading spectrum.Proposed methods are utilizable in advanced form of spread spectrum clock generation and also applicable to power circuits switching electromagnetic interference reduction & customization. Built upon proposed algorithms was an auto-configurable EMI exclusion. This enables limiting EMI noise generation with regards to surrounding circuits at the time of circuit utilization rather than the design stage.Experiment results on our FPGA implementation, have shown with no compromise on circuits functioning capabilities, our proposed methods can obtain -38 to -100[dB] noise hampering in selective bands.