2022-10-31 14:38 回答问题

三阶交调在卫星转发器的测试里算是一个重要指标。它在器件测试层面表征转发器的非线性特性，对于宽带或多音信号激励，交调失真还会造成带内和带外的频谱再生。

2022-08-22 15:07 回答问题

一句话概况就是对于source和destination时钟skew的计算方法不同导致的。 参考Xilinx官网 “35308 - 14.x Timing - Why is my clock modifying block (CMB) (MMCM, DCM, PLL, etc.) min delay larger than the max?” 的回答。 “CMBs can use feedback to deskew the clocks. The path that is used as the feedback is larger for maximum clock calculations and smaller for minimum clock calculations. The clock going out of the CMB is being phase matched with these delays and that is how we accomplish the 'deskewing' effect. The phase matching is modeled by subtracting the delay of the feedback path from the clock path. Therefore, on a minimum clock path calculation you will see a smaller negative number than you will for the maximum clock path calculations. ”