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SN75LVPE5421: SN75LVPE5421速率问题?

Part Number: SN75LVPE5421
Other Parts Discussed in Thread: DS160PR410

Hi Ti team,

   我们在SN75芯片的TX都加了0.22uf的电容,FLAT-GAIN也设置为 Minimum EQ, GAIN1/0=L4 (Float)了,但是只能跑到16GT/S,偶尔能跑到32GT/S但是眼图也非常差,请问还有什么参数可以调节改善PCIE信号,另外我们调节了EQ发现效果基本没有,请问是什么原因,另外这个参数调节是否是立即生效还是需要什么操作?