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CC2564C: CC2564C - IFA dimensions discrepancy

Part Number: CC2564C
Other Parts Discussed in Thread: CC256XCQFN-EM

Hi Team, 

I´m developing an audio BLE/BT streaming device with CC2564C and i found dimensional differences on the antenna pattern between the ones suggested into "AN "swra420b.pdf" (see image below) and "CC256XCQFN-EM" evaluation board gerbers.

Wich one do you recommend to follow?

 Best Regards,