can I connect LVDS 1.8V pins to LVDS 2.5 V pins ?

Question

Hi all,

I need to connect several LVDS pins between 2 xilinx FPGA evaluation boards.

It's possible to connect LVDS pins powered by 1.8V to LVDS pins powered by 2.5 V (because I don't have enough pins ) ?

Best regards,

michaelkellett · Answer

Probably not ideal but safe if TX is 1.8V and RX is 2.5V. Xilinx say this: https://forums.xilinx.com/t5/Other-FPGA-Architecture/LVDS-1-8v-and-2-5V/td-p/667588 MK

can I connect LVDS 1.8V pins to LVDS 2.5 V pins ?

Top Replies