User's Manual

B‐LINKELECTRONICCO.,LTDinshenzhen 

8

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9.TheStructureandSizeofproduct

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10:TheANTPinconnecttoantenna,pleaserefertodesigndemand

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Connecttothe6

pinofModule

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Connecttothe5

pinofModule

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a) Thecurrentof3.3V power supply mustbe >300mA, itsripplewavemustbe<30mV.The GND

pinsofmoduleandexternalantennaneedtobeanincorporatedpart.Thegroundplaneshould

belarger,moduleandantennashouldkeepfarawayfrominterferencesource.

b) Thesixthpinis2.4Ghighfrequencyoutput,coplanarimpedanceoflayoutlinebetweenthispin

toantennainterfaceshouldbe50Ω,wesuggestusearclineorstraightline,andbesidetheline

therewillbegroundplanethatitslengthasshoutaspossible,thelongestlengthisnomore

than50mm.

c) L1,C1,C2constituteaπ‐typenetworkthatwepreset,pleasemakeitclosetoantennainterface,

thisπ‐typenetworkisusedtomatchtheantennaparametersandcontroltheradiation.It

shouldbeadjustedaccordingtotherealconditionwhenbeingused.

Normallyyoucanonly

mountL1thatitsparametersare:10pF,NP0material.NoneedC1andC2