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ATSAMB11XR Datasheet(PDF) 73 Page - Microchip Technology

Part # ATSAMB11XR
Description  Ultra Low Power BLE 4.1 SiP/Module
PDF  87 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

ATSAMB11XR Datasheet(HTML) 73 Page - Microchip Technology

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14.2
Interferers
One of the biggest problems with RF devices is poor performance due to interferers on the board
radiating noise into the antenna or coupling into the RF traces going to input LNA. Care must be taken to
make sure that there no noisy circuitry is placed anywhere near the antenna or the RF traces. All noise
generating circuits should also be shielded so they do not radiate noise that is picked up by the antenna.
This applies to all layers. Even if there is a ground plane on a layer between the RF route and another
signal, the ground return current will flow on the ground plane and couple into the RF traces.
ATSAMB11XR/ZR
© 2017 Microchip Technology Inc.
Datasheet Preliminary
DS70005342A-page 73



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