25Gbps等高速信号Tx和Rx信号为什么要在不同层，基于什么来考虑的？

25Gbps等高速信号Tx和Rx信号为什么要在不同层，基于什么来考虑的?

时序一致

:lol:lol

也不是不能，在同一层，，间距拉开了，没关系的

放不同层，尽量避免爱一起吧，避免串扰

串扰吧

个人觉得是防止收发串扰形成自激。

呵呵，胡扯蛋的吧！

被揭穿了

好像没有多少人来回答。

标准答案：  intel
Simulation results show that the receiving margin is severely degraded by near-end
crosstalk (NEXT) from adjacent Transmit signals. Thus, non-interleaved breakout is
required to mitigate concerns on near-end crosstalk.  HSIO Tx and HSIO Rx
signals are breakout on different board layers or have TX and RX lane at least 15 mils
spacing separations. In further suppressing the far-end crosstalk (FEXT), interleaved or semi-interleaved
routing is recommended in main routing region.