M.2 PCIE AC coupling on Tx Line
Mar 04, 2024
Hello, I am designing a carrier board for Jetson AGX Orin. I am planning to put an M.2 connector that will connect to an NVME. When I refer to the Design Guide, it is suggested that AC capacitors are not required on carrier board if connected to a PCIE or M.2 connector.
![image](/uploads/20240229/71fb72e0b6643d59b7c6539c4f7a6c71.png)
However, in a reference schematic P3737, I noticed that they included the capacitors inline with the TX lines still.
![image](/uploads/20240229/ef9c6efb772fb874b69f8a1ba56ea5b3.png)
Should I include the AC capacitors for my application then?