I want to connect a differential LVDS signal to a DB9. It seems pretty straightforward but I just want a sanity check and after seeing this (Connect SMA to a regular pin/wire), Im doubting myself.
The differential LVDS signal is from 2 SMA ports. I imagine I just need to connect the inner cores to the DB9 input and connect the outer cores to some metal outer part of the db9 (I guess the screw connector or the outer shell of the db9). This will look janky, but I imagine gets the job done?
Any feedback would be appreciated. Thanks!
EDIT: In hindsight, I realized my DB9 has a ground pin I can connect both to, but I did realize also that the DB9s characteristic impedance termination is 100Ohm differential. Does that mean each port is 50 Ohms and I'm good to go or since both inputs from the SMA are 50, that makes my input impedance 25 ohms?