direct connection PN512 to tag pin

[mohammad_arman]

Hi.

I want to connect the pn512 TX1, TX2 outputs directly to the antenna pins of TAG chip. In this case, how is the matching circuit calculated?

[fangfang]

Hello @mohammad_arman .

Thanks for contacting NXP.

"pn512 TX1, TX2 outputs directly to the antenna pins of TAG chip"

In order to better service for you. Would you please describe your application? 

Have a nice day.

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[mohammad_arman]

@fangfang

thank you for your reply. I have some contactless MIFARE chips. I want to read and write data on them but due to limited space in my board, I can not use the antenna for them.

[fangfang]

Hello @mohammad_arman .

Thanks for your update information.

Unfortunately. We have not the information for the application. 

You may refer to the antenna videos as the below link.

https://www.nxp.com/video/nfc-antenna-design-1-which-antenna-for-what-purpose:WHICH-ANTENNA-PURPOSE-...

https://www.nxp.com/video/nfc-antenna-design-2-antenna-matching:ANTENNA-MATCHING-VIDEO

https://www.nxp.com/video/nfc-antenna-design-3-metal-environment:ANTENNA-METAL-ENVIRONMENT-VIDEO

https://www.nxp.com/video/nfc-antenna-design-4-optimization-debugging:ANTENNA-DEBUGGING-VIDEO

https://www.nxp.com/video/nfc-antenna-design-5-test-qualification:ANTENNA-TEST-QUALIFICATION-VIDEO

https://www.nxp.com/video/nfc-antenna-design-6-emc-related-design:ANTENNA-EMC-DESIGN-VIDEO

https://www.nxp.com/design/training/latest-nfc-antenna-design-hub:TIP-LATEST-NFC-ANTENNA-DESIGN

Have a nice day.

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