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DS90UB928Q 输出LVDS信号波形



下图为LVDS信号波形品质,这样的波形应该算差的,有什么好的调整方法吗?

DS90UB928Q输出路径:PCB-->双绞线对-->PCB--->FPC---->液晶驱动输入IC。

经过PCB有做阻抗匹配,但通过接口时,采用双绞线对及FPC时,阻抗匹配应该是较差的。