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ATSAMB11XR датащи(PDF) 73 Page - Microchip Technology |
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ATSAMB11XR датащи(HTML) 73 Page - Microchip Technology |
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73 / 87 page ![]() 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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