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pn7220 antenna current

Hello, could you advise how to configure the NFC antenna current for PN7220 via libnfc-nxp-rfExt.conf or other configuration files? Our tests show the antenna current is too high and needs to be reduced.

Re: pn7220 antenna current

Hello @zhangkai 

Recommends to enable DPC , but before enable DPC,which needs to be  calibrated.

Re: pn7220 antenna current

Hello @zhangkai , 

If you only need to reduce/limit the current, you can do it in the same way as described here: https://community.nxp.com/t5/NFC-Knowledge-Base/PN7642-Basic-RF-power-limitation-using-DPC/ta-p/2187... 


BR

TOma

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‎07-10-2026 02:31 AM
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