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PCIE的HSIP和HSIN和redirver的输入端直接DC耦合的吗?建议AC耦合,去掉直流分量。另外,看下PCIE的HSIP,HSIN电平是否和redriver的输入电平匹配?
是AC耦合之后经过一个Chip relay的,我将redriver移除之后量测到信号正常,但是焊上去之后就不行了;我可以再看一下Chip relay的输出;谢谢
不过另外一条通路是正常的,不过另外一条通路是直接AC耦合之后到Redriver的RX;