I am designing a board with USB 2.0 and Ethernet 10/100Mbps. I found this layout guide with very helpful information.
In the layout guide, at p. 34 (Table 7), it says that the minimum spacing between MDI signals and other high speed signals should be at least 7.5 mm. In my design I will have to route a USB 2.0 differential near the Ethernet RX differential pair at approx. 3.8 mm for a length of around 10 mm.
So, my question: is this issue critical (will it lead to a non-working design)? In this case, what solutions can you recommend me (e.g., how to shield the Ethernet RX pair from the USB 2.0 pair)?