Spread Spectrum Clock Generator With Adaptive Band

这项研究提出了一种新颖的数字时间转换器机制，用于扩频时钟生成。由此，可以从扩频中排除某些频带。所提出的方法可用于扩频时钟生成的高级形式，并且也适用于开关电磁干扰减少和定制的电源电路。 基于所提出的算法的是自动配置的 EMI 排除。这使得能够在电路使用时而不是在设计阶段限制周围电路的 EMI 噪声产生。我们的 FPGA 实现的实验结果表明，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段获得 -38 至 -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.