PN5180 Antenna tuning

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PN5180 Antenna tuning

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s04
Contributor I

Hello,

I'm trying to tune the matching circuit of the PN5180.
EMVCo L1 reception test is failing and needs to be resolved.
In the received waveform, the balance between Ich and Qch seems to be unbalanced in the long-distance test.
How can I tune the matching circuit (impedance) to control this IQ balance?
(Currently it matches 20Ω, the RxGain is MAX.)

s04_1-1646708769545.png

s04_0-1646708131602.png

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2 Replies

937 Views
s04
Contributor I

Thank you !

You mean "Your weakness is not the IQ balance. It may be spike noise."  , right?

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947 Views
fangfang
NXP TechSupport
NXP TechSupport

Hello @s04 .

For the application please kindly refer to the document as the attachment.

Hope it help you.

 

Have a nice day.

 

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