Design Notes; Host Board Design - Digi XBee XTC User Manual

Digimesh radio frequency (rf) module
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PCB design and manufacturing

Design notes

The following guidelines help to ensure a robust design.

Host board design

A good power supply design is critical for proper device operation. If the supply voltage is not kept
within tolerance, or is excessively noisy, it may degrade device performance and reliability. To help
reduce noise, we recommend placing both a 1 uF and 100 pF capacitor as near to VCC (pin 2) as
possible. If you use a switching regulator, we recommend switching frequencies above 500 kHz and
you should limit power supply ripple to a maximum 50 mV peak to peak.
As with all PCB designs, make power and ground traces thicker than signal traces and make them
able to comfortably support the maximum current specifications. Ground planes are preferable.
XBee®/XBee-PRO XTend Compatible (XTC) DigiMesh RF Module User Guide

Design notes

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