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ADL5801 - RF and LO input impedance

Question asked by veera on Nov 28, 2012
Latest reply on Dec 4, 2012 by bkamak

Hi,

 

The input impedance of RF and LO ports are 50 ohm differential.

In this case, isnt it required to make a differential trace of 50 ohm (25 ohm individual), at the input of mixer?

 

However in the Gerber files provided, it looks like, 100 ohm differential trace is given (50 ohm individual traces)

Though the Dielectric thickness was not given in the Gerber, the trace definitely looks like 100 ohm differential trace. This trace is given for both RF and LO inputs. Will it not cause poor matching?

 

Can you help us on this issue?

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