I'm designing a NFC antenna for my PN5180 PCD.
I'm doing this based on "AN11740 PN5180 Antenna design guide".
My question is about "188.8.131.52 Assembly and measurement " level.
Is this step( impedance measurement between TX1 and TX2 pins) done in live mode ?
I mean is it necessary to power on the PN5180 during the measurement or it must be powered off ?