PN7150 reference antenna in AN11755 is different to OM5578 evaluation board

[jeremy123]

Hi,

I am looking to integrate the PN7150 into a design.

I am reading the application note AN11755 which contains a reference antenna design on page 70. It states that for the 40x40mm reference antenna, the trace width should be 0.4mm, and spacing 0.3mm. However, when I look at the gerber files for the OM5578, it uses a 0.5mm trace with 0.4mm space (and 0.6mm via).

Is there a mistake in one of these? Or is the OM5578 not supposed to be the same as the reference antenna?

Also, it appears that the OM5578/PN7150S is now EOL, is there a replacement scheduled? Is it only EOL because it uses the old revision of the PN7150?

Thanks,

Jeremy

[Kan_Li · Accepted solution]

Hi @jeremy123 ,

The App note just provides an example for antenna design, it is not the same as OM5578.

The IC is still active as you can see in https://www.nxp.com/products/rfid-nfc/nfc-hf/nfc-readers/high-performance-nfc-controller-with-integr... . 

Have a great day,
Kan

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