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DP83TG720R-Q1: PCB design guidelines for automotive Ethernet

Part Number: DP83TG720R-Q1

Tool/software:

Hello Professor,

Recently, we pay attention to the mode conversion loss in TC8 testing. We found that there are two ways of MDI trace. Do you know which way is better? Or which routing is more suitable for DP83TG720RWRHARQ1.?Or do you know that the advantages and disadvantages of the two methods. Thanks.

The first way is: The termination network is placed near the connector and ESD is placed after CMC chock.

The second way is : The termination network is placed near AC capacitor and ESD is placed before CMC chock.