In a project, I am planning to use a flat ribbon cable, Z0 ~ 100 Ohms, with a length of about 3 feet to connect a couple of logic boards. I am wondering what is the best way to terminate the cable. From my readings, I am thinking that I will want to terminate near the receiving connector with a 100 Ohm resistor and a small capacitor for a typical AC termination scheme. From that point, my plan would be to pick up the signal with a schmitt trigger buffer / inverter to drive the logic that receives this signal. This goes against the concept of terminating the line past the last receiver, but it does terminate it at the point where the 100 Ohm cable hits the PCB traces. From the point of ribbon / pcb interface, the connection length to the schmitt trigger will be short, under a couple of inches.
I am also thinking that it should be suitable to drive the circuit with standard logic gates as they have a much lower output impedance than the cable.
Does this approach sound correct or is there a better way?
In case it matters, there will be various address, data, control and a clk signal corresponding to the addresses and data transmitted by ribbon cable.