User's Manual

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6.3 RFLayoutRecommendations
TheRFsectionofthiswirelessdevicegetstoppriorityintermsoflayout.ItisveryimportantfortheRF
sectiontobelaidoutcorre ctlytoensureoptimumper formancefromthedevice.Apoorlayoutcan
causelow‐outputpower,EVMdegradation,sensitivitydegradation,andmaskviolations.
Figure6
‐3showstheRFplacementandroutingoftheCC3120MODmodule.
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Figure6‐3:RFSectionLayout
ForoptimalRFperformance,ensurethecoppercutoutonthetoplayerundertheRF‐BG‐pin(pin31),is
asshowninFigure6‐4below:
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Figure6‐4:Top
layercopperpullbackonRFpads