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You may need to narrow things down a bit by saying more about your data rate and cable lengths as it is largely an electrical engineering problem, not really FPGA unique.
Because you called it out, LVDS is very useful and here is a pretty good primer:
http://www.ti.com/lit/ml/snla187/snla187.pdf --- Quote End ---
Hi, I choose to use LVDS. For data rate, I think it requires about 100Mbps. The length of the cable is about 20cm. Can you guide me how to use LVDS to connect 2 or more boards?
What connector type is used? I read here:
https://www.altera.com/en_us/pdfs/literature/wp/wp_lvdsboard.pdf It says that I need CAT3 or CAT5 cable. So, does it mean I have to use RJ45 connector? Can I use other connectors? If yes, what kind of connector do you suggest?
If I meant to send data from board 1 to board 2, so I need LVDS transmitter on board 1 and LVDS receiver on board 2, right?
Then I read here:
https://www.altera.com/content/dam/altera-www/global/en_us/pdfs/literature/hb/max-10/ug_m10_lvds.pdf It says that I need external termination for some I/O standards, like emulated LVDS, Sub-LVDS, etc.
What is this external termination? What does it do? How can I find the right value of resistors? What is Z0? Is it a cable impedance or something else?
Do I need termination for each transmitter and receiver?
I hope you can help. I appreciate it. Thank you.
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