Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

How connect 2 FPGA ?

hi, I want to connect many IO between 2 Cyclone III located on two different cards. I have to make an impedance matching or can I connect them directly ? Best regards
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Such a design might have to tackle some significant SSO noise. That’s what differential signaling – with or without an accompanied clock – is all about. It’ll require twice the pin count but can transfer way more than twice the data rate at significantly reduced SSO problems and power needs.

Can you explain what stops you from using LVDS?

– Matthias