How to route XCVR IO from Cyclone10GX to SFP

[MinzhiWang]

We are designing PCB based on Cyclone 10 GX device. There are total 12 channel tranceivers on this FPGA. We refer to its PCI-e demo board, howver, we found that the traces don't have AC coupling capacitors of XCVR (RX&TX) between FPGA and SFP. Do we need to add AC coupling capacitor for our board when we use fpga interconnecting with SFP?

[FvM · Accepted solution]

Hi,
coupling capacitors are located in SFP module by specification SFF-8431.

[Wincent_Altera]

Hi Fvm, thanks for help to answer on behave

Hi Ming Zhi,

I wish to follow up with you about this case.

Do you have any further questions on this matter ?

​​​​​​​Else I would like to have your permission to close this forum ticket

Regards,

Wincent_Intel

p/s: If any answer from the community or Intel Support is helpful, please feel free to give the best answer or rate 9/10 survey.

[Wincent_Altera]

Hi

We have not hear from you and this Case is idling. It is not recommended to idle for too long.

Therefore following our support policy, I have to put this case in close status. My apologies if any inconvenience cause

Hence, This thread will be transitioned to community support.

If you have a new question, feel free to open a new thread to get support from Intel experts.

Otherwise, the community users will continue to help you on this thread. Thank you

If your support experience falls below a 9 out of 10, I kindly request the opportunity to rectify it before concluding our interaction. If the issue cannot be resolved, please inform me of the cause so that I can learn from it and strive to enhance the quality of future service experiences. 

Regards,

Wincent_Intel

p/s: If any answer from the community or Intel Support is helpful, please feel free to give the best answer or rate 9/10 survey.