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Termination needed for unused ports? HMC252

Question asked by libralei on May 28, 2015
Latest reply on May 28, 2015 by s.ilke

I'm using 5 RF ports (out of 6) of HMC252, the unused one is left float. during test,the received signal is very poor. My question is do I need to connect the unused RF port to GND via a 50ohm resistor? I thought the IC did this termination inside.

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