I have the ONET1151L implemented in a PCB design. When doing the layout, it was overlooked that the trace impedance of the output lines should be 25 Ohms. I am seeing functionality however the eye diagram looks fuzzier than I would like.
I DO have an optional component placed between the two output lines(C33 which is currently not populated). There are also serial 0 ohm resistors (R14 and R36) on each of the output lines that lead to the TOSA device.
Is there a component or combination of components that could be added to improve the termination of the ONET1151L outputs given that the traces are not impedance controlled? I am just trying to improve the performance of the current hardware, as best I can, without having to do a complete board re-spin.
Thank you,
Michael Nycz