User's Manual

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

7

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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.

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) L10,C235,C236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:1NH.NoneedC235.

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12.TpicalSolderReflowProfile