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NT3H2211 Antenna tuning

Question asked by Jochen Schuster on Nov 8, 2016
Latest reply on Nov 9, 2016 by Wigros Sun


we are using the NT3H2211 NFC Tag.

Is there any documentation about the Antenna tuning with this IC? Because when tuning the coil to 13,56 MHz and then connect the circuit to the IC the resonance frequency is totally different.

So its hard to tune the antenna to 13,56 MHz not knowing the input impedance of the ic.