ADL5205 Output Impedance errata in Datasheet?

Hello

Customer is trying to get the ADL5205 work in his circuit. He put it in Ansoft "and I noticed right off that the S-parameter file I downloaded from ADI’s web site indicates the output impedance of the ADL5205 is 55 ohms (each output) rather than 5 ohms per the data sheet. It looks to me like they put a 50 ohm resistor in series with the outputs of the ADL5205 for s-parameter measurements and then did not de-embed the ADL5205 from the data. Can you find out if that is indeed what is going on and if there is a de-embedded file available?"

Please advise ASAP.

Thanks,

Anita

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