Hi there,
please excuse me writing in English to this newsgroup but my German is so bad that you could harldy understand me. I'm currently working on a board design and I have to interface two VLSI chips to each other that don't have exactly compatible level characteristics. To be more precise I have a differential CML output of U(t) = 1.8V +/- 0.400V * rect(t) being terminated
50 Ohm to Vref and a non-standard differential Input which assumes U(t) =
1.15V +/- 0.125V * rect(t) being 100 Ohm differentially terminated. I first thought about AC coupling but that only kills my DC part but doesn't come to solve the problem of incompatible swings. Maybe a resistor network would be the right choice but I am not so firm on that topic. Any help, suggestions and calculation examples would be appreciated.
Many thanks in advance and best regards,
Melanie