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[#1]

AN142522 RF Amplifier for NXP Contactless NFC Reader IC's

Hi,

Does NXP provides Amplifier circuits for NFC Readers ? 

How should be this circuits connected with the reader ? is there any hardware guide for designing an amplifier circuit and connecting it to the reader ? 

Thanks

Re: AN142522 RF Amplifier for NXP Contactless NFC Reader IC's

Hi， 

 How about PN7160/PN5180 ？

 Can the solution for adding an external PA refer to AN11003? If so, are there any specific recommendations for ISO15693?
Additionally, if the TX power is increased to 6W (1A, 6V), what precautions should be taken when using it with the NTAG 5 Link?

thanks

andy

Re: AN142522 RF Amplifier for NXP Contactless NFC Reader IC's

Hi @amighri ,

Yes, that can be done.

Please be aware that the amplifier delivers more RF power, but it does not provide a better coupling. Thus, the cards might be powered at a larger distance, but the Rx might not be able to receive the card response in that case. 

Hope that makes sense,

Have a great day,
Kan

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Re: AN142522 RF Amplifier for NXP Contactless NFC Reader IC's

Hi @Kan_Li  , 

Does using an amplifier circuit improve the range of the reading operation distance between the tag and the reader?

Thanks in advance. 

Re: AN142522 RF Amplifier for NXP Contactless NFC Reader IC's

Hi @amighri ,

Please kindly refer to https://www.nxp.com/docs/en/application-note/AN1425_AN166510.zip for details, in which you may find an application note on this topic as well as an excel file for calculation the parameters.

Hope that helps,

Have a great day,
Kan

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