Hey all,
I am currently doing a project that uses a 1.25Gbps SGMII Ethernet signal that I get over to other boards through 50 ohm SMA and coax. I'd like to switch over to carrying that signal with USB 3.1+ Type-C cables since it would also allow for power distribution to other boards and a few other benefits. The trouble is in the impedance though.
The signal that I am using is 100 Ohm, SERDES LVDS while USB uses 90 Ohm. Does anyone know of a simple solution (think buffer or a couple passives and an IC) that can address this 10 Ohm Differential impedance mismatch? If not, a complex one? To be clear, I don't want an Ethernet-to-USB converter IC. I will also need to convert it back on the receiving side to 100 Ohm Differential.
Any help or ideas you can provide is greatly appreciated!
-Mezz
I am currently doing a project that uses a 1.25Gbps SGMII Ethernet signal that I get over to other boards through 50 ohm SMA and coax. I'd like to switch over to carrying that signal with USB 3.1+ Type-C cables since it would also allow for power distribution to other boards and a few other benefits. The trouble is in the impedance though.
The signal that I am using is 100 Ohm, SERDES LVDS while USB uses 90 Ohm. Does anyone know of a simple solution (think buffer or a couple passives and an IC) that can address this 10 Ohm Differential impedance mismatch? If not, a complex one? To be clear, I don't want an Ethernet-to-USB converter IC. I will also need to convert it back on the receiving side to 100 Ohm Differential.
Any help or ideas you can provide is greatly appreciated!
-Mezz