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termination resistor values for daisy chained LVDS app

Question asked by eltury on Dec 5, 2014
Latest reply on Dec 11, 2014 by eltury

I am using ADN4665 & ADN4666 to extend an SPI bus. My cables are twisted pair. I have 100 ohm termination resistors on each board of which there can be a total of 4 daisy chained. Three run fine. When I add the 4th I have weird things happening to my signals. I suspect that my total termination R is too low at this point. Does someone have experience along these lines and perhaps can suggest what termination R might work?

Thanks for your help.

 

Edd

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