impedance output chip

Hello

I'm a student and I'm doing project about RFID. I have to design antenna for 13.56MHz but I have never found impedance output of chip in datasheet (for example MCRF 450).

I would like to know if the impedace output of chip is essential? If not how to realize impedace matching.

Thanks for fast reply!
Best regards

Hello,

There is an Application Note on Microchip RFID devices here:

http://ww1.microchip.com/downloads/e...tes/00830b.pdf

and there is an older one that although does not yet contain your MCRF450 but has a chapter on antenna connection to the chip:

http://www.notinn.ru/pasport/smart/21299c.pdf

I am not an expert on this topic, only did some search on the web ..

unkarc