AnsweredAssumed Answered

ADL5390 input impeadance

Question asked by J.C.Maxwell on May 5, 2015
Latest reply on May 5, 2015 by jdobler

Hi there,


I am trying to optimise the input match for this device when used with a third party Quadrature splitter operatinng from 100-900MHz


The data sheet has a plot of the input match with and without the 66.5Ohm shunt resistor used to match to the internal 250ohm shunt resistor.



the supplied S paramters for this device don't match the data sheet see below.




The question is is the Datasheet wrong or are the supplied S parameters wrong or am i doing something wrong with my simulation?