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PN5180 PLL setting

Question asked by 悟 三輪 on Feb 17, 2017
Latest reply on Apr 23, 2017 by Jan Matik



I am now trying PN5180 operation by PLL with 12MHz crystal. (Before, I tried PN5180 with 27.26MHz and it can operated successfully.)

My question is how should I set the related register to operate PLL mode, because I cannot get 13.56MHz.

I confirmed the crystal is oscillating 12MHz. However, the frequency of RF out is also 12Mhz.

I think I miss some settings of necessary registers.

So, please tell me which register and/or which bit should be set and what value should be written?


I appreciate your advise as soon as possible.


Best regards,

   S. Miwa