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AD9361 RX LNA SE Graphs

Question asked by igal on Dec 4, 2016
Latest reply on Dec 13, 2016 by Vinod



We're using AD9361 RX inputs in a single ended configuration.

I've seen on UG-570 document that you recommend using a differential mode for better NF and IP2 performance, but there's no elaboration beyond that.


1. I'd like to know how much NF degradation we get when using SE vs Differential.

2. Figures 38-47 describe only the differential RX port. Can you please provide graphs for SE as well or should I just divide by 2 the differential result?

3. We insert the RF signal directly from the antenna to the port (via SE filter) without a Balun. What could be the NF degredation using that topology (@3500MHZ)?


Best regards,