Wistron NeWeb UWMWBT-CWM01 MOD-SM WNC BLUETOOTH/WLAN CWM-01 User Manual WBT Manual for FCC 20111227

Wistron NeWeb Corporation MOD-SM WNC BLUETOOTH/WLAN CWM-01 WBT Manual for FCC 20111227

User Manual

The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 1 / 30 WLAN/BT System Integration ManualModelName:UMW‐WBT,CWM‐01IssueDate:2011/05/05ProjectCode: RevDate:2011/12/27WLAN/BTSystemIntegrationManualBaseModel:Rev:2
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 2 / 30 WLAN/BT System Integration ManualRevisionHistoryRev.HistoryDateAuthor1- Initialversion2011/05/05ShukaiHsuHTLiaoHausonChenChrisWJHuang21.Frequencyrangeischangedto2400‐2483.5Mhz2. FCCchannelsrevisedtobech1–ch113. Powervalueisrevised:WIFI:15+/‐1.5dBmBT:class1- 2011/12/27Shukai- - - 
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 3 / 30 WLAN/BT System Integration ManualTABLEOFCONTENTS 1. INTRODUCTION ................................................................................................................................................................4 1.1 Product Overview.............................................................................................................................................................4 1.3 Standard Bluetooth Profiles..............................................................................................................................................6 1.4 Temperature Parameter.....................................................................................................................................................6 1.5 Module Pin Out ................................................................................................................................................................7 1.6 Power management ..........................................................................................................................................................9 1.7 RF connection ................................................................................................................................................................10 2. INTERFACES .................................................................................................................................................................... 11 2.1 SDIO Interface ...............................................................................................................................................................11 2.2 UART Interface ..............................................................................................................................................................12 2.2.1SignalBehavior ....................................................................................................................................................12 2.3 Digital Audio Interface...................................................................................................................................................13 2.4 RESET#..........................................................................................................................................................................14 2.5 SLEEP_CLK ..................................................................................................................................................................14 2.6 Joint Test Action Group (JTAG) and Test Interface........................................................................................................14 JTAGInterfaceSignalDescription .................................................................................................................................14 2.7 Antenna Diagnosis..........................................................................................................................................................15 HandlingRequirements ................................................................................................................................................24 Moisturepreconditioning.............................................................................................................................................24 4.2 Soldering Requirements .................................................................................................................................................24 4.2.1SolderingIronSoldering ......................................................................................................................................24 4.2.2ReflowProfile ......................................................................................................................................................24 4.2.3SolderingPaste ....................................................................................................................................................25 4.2.4 PCB Layout Footprint Design .............................................................................................................................26 5 PRODUCT TESTING.............................................................................................................................................................28 5.1 Production test................................................................................................................................................................28 FORPRODUCTAVAILABLEINTHEUSA/CANADAMARKET,ONLYCHANNEL1~11CANBEOPERATED.SELECTIONOFOTHERCHANNELSISNOTPOSSIBLE........................................................................................................................................................29 
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 4 / 30 WLAN/BT System Integration Manual1.IntroductionThisdocumentspecifiesthemechanicalandelectricalspecificationsforthe802.11b/gWiFiandBluetooth3.0module.Continuingatraditionofdesigningenuityanddevelopment,WistronNeWebCorporation(WNC)presentsastandardmodularsolutionforWiFiandBluetoothtechnologytocomplywithOEMindustrialrequirementsinvehicles.Themoduleprovides802.11b/gWLANandBluetooth3.0functionsbyusingasinglechipsetsolution.Utilizingthemodule,radiomanufacturersareenabledtocreatefeaturerichreadydesignwithouttheadditionalburdentoredesigntheWiFiandBluetoothfunctions.Fortheremainderofthedocument,thehostdesignthatshallintegratethemoduleshallbereferredtoastheapplication.Theapplicationshallbethecontrollinghostentitywithrespecttothemodule.Thisdocumentalsoprovideshardwaredesigninstructionandproductionsetupinformation.1.1ProductOverview Thisdocumentspecifiesthe802.11b/g+BluetoothModule.Thespecificationcoversoveralldimensions,generalmoduleconstruction,connectorinterfacefootprints,andmechanicalandelectricalcharacteristicsoftheWNC’s802.11b/g+Bluetoothmodule.ThismodulewasbuiltbyusingMarvell’s88W8688chipset.HostInterface:WLAN:SDIOBluetooth:SDIO/highspeedUART802.11b/g:Frequencyband: BMode:2.400~2.4835GHz GMode:2.400~2.4835GHzChannelSpacing:B/GMode:5MHzModulation: BMode:DSSSwithDBPSK,DQPSK,andCCK GMode:OFDMwithBPSK,QPSK,QAM,and16/64QAMChannelsSupport: BMode: CH1–CH13(ETSI)/CH1‐CH11(FCC)/CH1‐CH14(Japan) GMode: CH1–CH13(ETSI)/CH1‐CH11(FCC)/CH1‐CH14(Japan)RFoutputPower: BMode:16.30dBm@1,2,5.5,and11Mbps GMode:23.55dBm@6,9,12,18,24,36,48and54Mbps
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 5 / 30 WLAN/BT System Integration ManualSensitivity: BMode:–88dBmat1Mbps–87dBmat2Mbps–84dBmat5.5Mbps–80dBmat11Mbps GMode:–82dBmat6Mbps–81dBmat9Mbps–79dBmat12Mbps–77dBmat18Mbps–74dBmat24Mbps–70dBmat36Mbps–66dBmat48Mbps–65dBmat54MbpsMediaAccessProtocol:CSMA/CA802.11bdataratesof1,2,5.5and11Mbps802.11gdataratesof6,9,12,18,24,36,48,and54Mbpsformultimediacontenttransmission802.11eQualityofservice(QoS)802.11htransmitpowercontrol802.11jchannels(Japan)802.11smeshnetworkingEncryption: AEC‐CCMP WPAencryption WEP64‐and128‐bitencryptionwithhardwareTKIPprocessing IPSECsecurityaccelerationinhardwareBluetoothFullycompliantwithBluetooth2.1+EDR,3.0Carrierfrequency:2400MHzto2483.5MHz(79channels)RFOutputPower:6.35dBmClass1RxSensitivity‐82.4dBm(typ.)forGFSK@BER=0.1%,1Mpbs‐89.8dBm(typ.)forπ/4 ‐DQPSK@BER=0.1%,2Mpbs‐89.8dBm(typ.)for8‐DPSK@BER=0.1%,3Mpbs
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 6 / 30 WLAN/BT System Integration Manual1.3StandardBluetoothProfilesThestandardBluetoothprofileisasTable1‐2.Additionalprofilesotherthanlistsaresupportedby3’rdparty.OperatingSystemBluetoothProfileGAPSDPGOEPA2DPHIDHSPPANOPPLinux‐BlueZSPPSDPA2DPHIDWindowsMobileHSPTable1‐1StandardBluetoothProfiles1.4TemperatureParameterOperatingtemperaturerange: Lowambienttemperature:‐40ºC Highcasetemperature:+85ºCStoragetemperaturerange: Lowtemperature:‐40ºC Hightemperature:+85ºC
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 7 / 30 WLAN/BT System Integration Manual1.5ModulePinOutThemoduleisdesignedas54pinsolderjointmoduleforSMTprocess.Thepin‐outisillustratedinthefigure1‐2.UART_TXGNDGNDGNDUART_RXS D_ DATA[2 ]45GNDGNDVCC_1V828GNDGNDGNDGNDBT_ RFWLAN_RFBT_P CM_DINBT_P CM_ CLKBT_P CM_ DO UTBT_ PCM _SY NC1GNDVCC_VIO_X2GNDJTAG_TCKJTAG_TDIJTAG_TRSTnJTAG_ TMS _S YSJTAG_TDO18S D_ DATA[3 ]40 3035S D_ DATA[0 ]UART_RTSS D_ DATA[1 ]SD_ CMDS D_CLKVCC_3V3VCC_3V3VCC_3V0VCC_VIO_X1GNDGNDGND27VCC_3V3VCC_3V3VCC_WLAN_ ANT_DIAGGNDWLAN_ANT_DIAG25201951015SLEEP _ CLKANT_SEL _PRESETn46VCC_BT _ANT_DIAGUART_CTSBT _AN T_ D IAG5054JTAG_TMS_CPUNCANT_ SEL _NFigure1‐2Pinoutof802.11b/g+BluetoothmoduleThepindefinitionisshowninthefollowingtable1‐2.Pin#SignalNameI/OSignalDescriptionSignalCharacteristicsSDIOInterface36SD_CLKI/OSDIOclock37SD_CMDI/OSDIOcommandline39SD_DAT_0I/OSDIOdatalinebit038SD_DAT_1I/OSDIOdatalinebit141SD_DAT_2I/OSDIOdatalinebit240SD_DAT_3I/OSDIOdatalinebit3UARTInterface45TXDOUARTserialdataoutput44RXDIUARTserialdatainput46CTSIUARTCleartosendsignal43RTSOUARTReadytosendsignal WLANandBluetoothRFInterface
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 8 / 30 WLAN/BT System Integration Manual17WLAN_RFI/OWLANantennain/out2BT_RFI/OBluetoothantennain/outAudioInterface–PCM/I2S5BT_PCM_CLK/I2S_BCLKI/OPCMclock/I2Saudiobitclock7BT_PCM_SYNC/I2S_LRCLKI/OPCMsyncpulse/I2Sleft/rightclock4BT_PCM_DIN/I2S_DINIPCMdatainput/I2Sdatainput(forrecording)6BT_PCM_DOUT/I2S_DOUTOPCMdataoutput/I2Sdataoutput(forplayback)Control&PowerInterface52RESET#IResetsignalActivelow47SLEEP_CLKISleepclockCoexistence48ANT_SEL_PODifferentialAntennaSelectPositiveoutput49JTAG_TMS_CPUIJTAGTestModeSelect(SelectstheinternalCPUJTAGcontroller)50NC 51ANT_SEL_PODifferentialAntennaSelectNegativeoutputAntennaDiagnosis53VCC_BT_ANT_DIAGIExternalpowerforBTantennadiagnosis54BT_ANT_DIAGOBTantennadiagnosisoutput20VCC_WLAN_ANT_DIAGIExternalpowerforWLANantennadiagnosis19WLAN_ANT_DIAGOWLANantennadiagnosisoutputJointTestActionGroup(JTAG)andTestInterface11JTAG_TCKIJTAGTsetClock12JTAG_TDIIJTAGTsetDataInput13JTAG_TDOOJTAGTestDataOutput14JTAG_TRSTnIJTAGTestResetActivelow15JTAG_TMS_SYSIJTAGTestModeSelect(SelectstheSystemJTAGcontroller)Power&Ground23,24,32,33,VCC_3V3PI3.3Vpowerinput3.3V+/‐1.5Visrequired.29VCC_3V0PO3.0Vmonitoringoutput
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 9 / 30 WLAN/BT System Integration Manual34VCC_1V8PO1.8Vmonitoringoutput26VCC_VIO_X1PI1.8/3.3VHostInterfaceSupplyForSDIO,UARTinterface9VCC_VIO_X2PI3.3VDigitalInterfacesupplyForPCMinterface1,3,8,10,16,18,21,22,25,27,28,30,31,35,42GNDPGroundTable1‐2PinOutDefinition1.6PowermanagementModulesupply(VCC_3V3)802.11b/g+BluetoothmodulesmustbesuppliedthroughVCC_3V3pinbyaDCpowersupply.Voltagesmustbestable,duetothesurgingconsumptionprofileoftheWiFi/BTsystem.NameDescriptionRemarksVCC_3V3ModuleSupplyCleanandstablesupplyisrequired:lowrippleandlowvoltagedropmustbeguaranteed.Voltageprovidedhastobealwaysabovetheminimumlimitoftheoperatingrange.ConsiderthattherearelargecurrentspikeinWIFIorBTconnectedmode.VCC_IO_X1,VCC_IO_X2I/OSupplyCleanandstablesupplyisrequired:lowrippleandlowvoltagedropmustbeguaranteed.Voltageprovidedhastobealwaysabovetheminimumlimitoftheoperatingrange.GNDGroundGNDpinsareinternallyconnectedbutgood(lowimpedance)externalgroundcanimproveRFperformances.AllGNDpinsmustbeexternallyconnectedtoground.
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 10 / 30 WLAN/BT System Integration ManualOperatingconditionSymbolParameterConditionMinTypMaxUnitsVCC_3V3Modulepowersupply2.973.33.63V1.621.81.98VVIO_X1HostinterfacedigitalI/Opowersupply2.973.33.63VVIO_X2DigitalI/Opowersupply 2.973.33.63VVCC_3V01.8Vinternalvoltagesupply 2.93.03.1VVCC_1V81.8Vinternalvoltagesupply 1.71.81.9VTAAmbientoperatingtemperature ‐40 85℃TJMaximumjunctiontemperature   125℃1.7RFconnectionTheRFpinhas50Ωnominalimpedanceandmustbeconnectedtotheantennathrougha50Ωtransmissionlinetoallowtransmissionandreceptionofradiofrequency(RF)signalsintheWIFIandBToperatingbands.NameDescriptionRemarksWLAN_RFWLANantennain/out50nominalimpedance.BT_RFBluetoothantennain/out50nominalimpedance.RFportESDratingis+/‐8kV(contactdischarge).Ahigherprotectionlevelcouldberequiredifthelineisexternallyaccessibleontheapplicationboard.NotethatantennadetectionfunctionalitywillbenotprovidedimplementingforESDprotectionontheANTport.Chooseanantennawithoptimalradiatingcharacteristicsforthebestelectricalperformanceandoverallmodulefunctionality.Aninternalantenna,integratedontheapplicationboard,oranexternalantenna,connectedtotheapplicationboardthroughaproper50Ωconnector,canbeused.
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 11 / 30 WLAN/BT System Integration Manual2.InterfacesThischapterdescribestheinterfacesontheWLAN/BTmodules:SDIO,UART,PCM,JTAG,Antennadiagnosis.2.1SDIOInterfaceThemodulesupportsaSDIOdeviceinterfacethatconformstotheindustrystandardSDIOfullspeedcardspecificationandallowsahostcontrollerusingtheSDIObusprotocoltoaccesstheWLANand/orBluetoothdevice.ThisdevicealsosupportshighspeedmodeasdefinedinSDIO1.2specification.TheSDIOinterfacesupportsdualfunctionoperations,forWLANandBluetooth.DualfunctionalityallowstheuseofindependentclientdriversforWALNand/orBluetoothonthehostplatform.Sincethesefunctionssharethesamephysicalinterface,anarbitrationschemeisrequiredintheSDIObusdriveronthehostplatform.TheSDIOinterfacesupportsSPI,1‐bitSDIO,4‐bitSDIOtransfermodesatthefullclockrangeof0to50MHz.2.1.1SDIOInterfaceSignalDescriptionPinNameSignalNameTypeDescriptionSD_CLKCLKI/OSDIO4‐bitmode:ClockSDIO1‐bitmode:ClockSDIOSPImode:ClockSD_CMDCMDI/OSDIO4‐bitmode:Command/ResponseSDIO1‐bitmode:CommandlineSDIOSPImode:DatainSD_DAT_0DAT0I/OSDIO4‐bitmode:Datalinebit[0]SDIO1‐bitmode:DatalineSDIOSPImode:DataoutSD_DAT_1DAT1I/OSDIO4‐bitmode:Datalinebit[1]SDIO1‐bitmode:InterruptSDIOSPImode:InterruptSD_DAT_2DAT2I/OSDIO4‐bitmode:Datalinebit[2]SDIO1‐bitmode:ReadWait(optional)SDIOSPImode:Reserved
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 12 / 30 WLAN/BT System Integration ManualSD_DAT_3DAT3I/OSDIO4‐bitmode:Datalinebit[3]SDIO1‐bitmode:NotusedSDIOSPImode:Chipselect(Negativetrue)2.1.2SDIOConnection/FunctionFigure1.1SDIOPhysicalConnection–4bitmodeNote:In4‐bitSDIOmode,dataistransferredonall4datapins(DAT[3:0]),andtheinterruptpinisnotavailableforexclusiveuseasitisutilizedasadatatransferline.Thus,iftheinterruptfunctionisrequired,aspecialtimingisrequiredtoprovideinterrupts.The4‐bitSDIOmodeprovidesthehighestdatatransferpossible,upto100Mbps.2.2UARTInterfaceThemodulesupportsahighspeedUARTinterface,complianttotheindustrystandard16550specification.HighspeedbaudratesaresupportedtoprovidethephysicaltransportbetweenthedeviceandthehostforexchangingBluetoothdata.2.2.1SignalBehaviorTXDSerialdataoutputtotheperipheraldevice.RXDSerialdatainputfromtoperipheraldevice.
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 13 / 30 WLAN/BT System Integration ManualCTSClear‐to‐Sendinputfromtheperipheraldevice.RTSRequest‐to‐Sendoutputtotheperipheraldevice.2.3DigitalAudioInterfaceDigitalaudiointerfacesincludePCMforvoiceapplicationandI2Sfordigitalstereoapplications.PCMandI2Sinterfacesharethesamepins.Voiceinterfacesupports.HardwaresupportforcontinualtransmissionandreceptionofPCMdatawithoutprocessoroverhead.StandardPCMclockratesfrom64KHzto2.048MHzwithmulti‐slothandshakeandsynchronization.PCMencoding/decodingsupportofA‐law,μ‐law,andlinearvoice.Stereoaudiointerfacesupports.StandardrecordandplaybackforI2S,left‐justified,andright‐justifiedserialinterfaces.PlaybackinIEC60958CompatibleAudioCodecInterface.MasterandslavemodeforI2S,MSB,andLSBaudiointerfaces.SlavemodewithoptiontouseasynchronousinternalCLK.SlavemodewithoptionalslowersynchronousCLKinputfromhosttosavepower.2.3.1BT_PCM_SYNC/I2S_LRCLKPCMmode:BT_PCM_SYNC,input/output(outputifPCMinitiator,inputifPCMtarget)Stereoaudiomode:I2S_LRCLKMastermode:outputSlavemode:input2.3.2BT_PCM_CLK/I2S_BCLKPCMmode:BT_PCM_CLK,input/output(outputifPCMinitiator,inputifPCMtarget)Stereoaudiomode:I2S_BCLKMastermode:outputSlavemode:input2.3.3BT_PCM_DOUT/I2S_DOUTPCMmode:BT_PCM_DOUT,outputStereoaudiomode:I2S_DOUT,output2.3.4BT_PCM_DIN/I2S_DINPCMmode:BT_PCM_DIN,input
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 14 / 30 WLAN/BT System Integration ManualStereoaudiomode:I2S_DIN,input2.4RESET#Resetsignal,activelow.ThemoduleisresetandthemodulebeginsthebootsequencewhenRESET#inputpintransitionsfromlowtohigh.2.5SLEEP_CLKSLEEP_CLK,clockinputforexternalsleepclock.ThesleepclockisusedbythePMUduringpowersavemodes.2.6JointTestActionGroup(JTAG)andTestInterfaceJTAGisreservedforSWdebugandfailureanalysis.JTAGInterfaceSignalDescriptionPinNameTypeDescriptionTCKIJTAGTestClockInputTDIIJTAGTestDataInputTDOOJTAGTestDataOutputTRSTnI/OJTAGTestReset(activelow)TMS_CPUIJTAGTestModeSelectSelectstheinternalCPUJTAGcontrollerTMS_SYSIJTAGTestModeSelectSelectstheSystemJTAGcontroller
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 15 / 30 WLAN/BT System Integration Manual2.7AntennaDiagnosisIfanexternalantennaequippeda50KohmfromitsRFcablecoretoGND,thenthisantennadiagnosiscancheckwhethertheantennaispluggedwellornot.2.7.1VCC_BT_ANT_DIAGandBT_ANT_DIAGIfanexternalantennaequippeda50KohmfromitsRFcablecoretoGNDandavoltageV1isappliedtoVCC_BT_ANT_DIAG,thenBT_ANT_DIAGcanbereadasV1/2 iftheconnectionofantennaandmoduleisgood.2.7.2VCC_WLAN_ANT_DIAGandWLAN_ANT_DIAGIfanexternalantennaequippeda50KohmfromitsRFcablecoretoGNDandavoltageV2isappliedtoVCC_WLAN_ANT_DIAG,thenWLAN_ANT_DIAGcanbereadasV2/2 iftheconnectionofantennaandmoduleisgood.
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 16 / 30 WLAN/BT System Integration Manual3.Design‐In3.1Design‐inchecklistThissectionprovidesadesign‐inchecklist.3.1.1SchematicchecklistThefollowingarethemostimportantpointsforasimpleschematiccheck:□ DCsupplymustprovideanominalvoltage(3.3V)atVCC_3V3pinsabovetheminimumnormaloperatingrangelimit.□ DCsupplymustprovideanominalvoltage(3.3V)atVCC_VIO_X2pinsabovetheminimumnormaloperatingrangelimit.□ DCsupplymustprovideanominalvoltage(3.3Vor1.8V)atVCC_VIO_X1pinsabovetheminimumnormaloperatingrangelimit.□ DCsupplymustbecapabletoprovide0.5Acurrentburstswithmaximum200mVvoltagedropatVCC_3V3pins.□ DCsupplymustbecapabletoprovide0.1Acurrentburstswithmaximum200mVvoltagedropatVCC_VIO_X2pins.□ DCsupplymustbecapabletoprovide0.1Acurrentburstswithmaximum100mVvoltagedropatVCC_VIO_X1pins.□ VCC_3V3supplyshouldbeclean,withverylowripple/noise(lessthan200mVpp):suggestedpassivefilteringpartscanbeinserted.□ VCC_VIO_X1supplyshouldbeclean,withverylowripple/noise(lessthan100mVpp):suggestedpassivefilteringpartscanbeinserted.□ VCC_VIO_X2supplyshouldbeclean,withverylowripple/noise(lessthan200mVpp):suggestedpassivefilteringpartscanbeinserted.□ ConnectonlyoneDCsupplytoVCC_3V3:differentDCsupplysystemsaremutuallyexclusive.□ Checkthatvoltagelevelofanyconnectedpindoesnotexceedtherelativeoperatingrange.□ CheckUARTsignalsdirection.□ Checkthedigitalaudiointerfacespecificationstoconnectaproperdevice.□ Toavoidanincreaseofmodulecurrentconsumptioninpowerdownmode,anyexternalsignalsconnectedtothemoduledigitalpins(UART,PCM,SDIOinterface)mustbesetlowortri‐statedwhenthemoduleisinpowerdownmode.□ Anyexternalsignalconnectedtothedigitalaudiointerfacemustbetri‐statedwhenthemoduleisinpowerdownmodeandmustbetri‐statedduringthemodulepower‐onsequence(atleastfor1500msafterthestart‐upevent).□ ProvideproperprecautionsforESDimmunityasrequiredontheapplicationboard.□ Allthenotusedpinscanbeleftfloatingontheapplicationboard.
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 17 / 30 WLAN/BT System Integration Manual3.1.2LayoutchecklistThefollowingarethemostimportantpointsforasimplelayoutcheck:□ Check50ΩimpedanceofANTline(WLAN_RF,BT_RF).□ Followtherecommendationsoftheantennaproducerforcorrectantennainstallationanddeployment.□ Ensurenocouplingoccurswithothernoisyorsensitivesignals.□ VCCline(VCC_3V3,VCC_VIO_X1,VCC_VIO_X2)shouldbewideandshort.□ RouteVCCsupplylineawayfromsensitiveanalogsignals.□ Ensurepropergrounding.□ OptimizeplacementforminimumlengthofRFlineandcloserpathfromDCsourceforVCC.3.2DesignGuidelinesforLayoutThefollowingdesignguidelinesmustbemetforoptimalintegrationofWLAN+BTmodulesonthefinalapplicationboard.3.2.1LayoutguidelinesperpinfunctionThissectiongroupsthemodulepinsbysignalfunctionandprovidesarankingofimportanceinlayoutdesign.UART_TXGNDGNDGNDUART_RXS D_ DATA[2 ]45GNDGNDVCC_1V828GNDGNDGNDGNDBT_ RFWLAN_RFBT_P CM_ DI NBT_ PCM_ CLKBT_P CM_ DO UTBT_PCM_SY NC1GNDVCC_VIO_X2GNDJTAG_TCKJTAG_TDIJTAG_TRSTnJTAG _TM S_S YSJTAG_TDO18S D_ DATA[3 ]40 3035S D_ DATA[0 ]UART_RTSSD_DATA[1]SD_CMDSD_CLKVCC_3V3VCC_3V3VCC_3V0VCC_VIO_X1GNDGNDGND27VCC_3V3VCC_3V3VCC_WLAN_ANT_DIAGGNDWLAN_ANT_DIAG25201951015SLEEP _ CLKANT_SEL _PRESETn46VCC_BT_ANT_DIAGUART_CTSBT _ANT _ DIAG5054JTAG_TMS_CPUNCANT_ SEL _NVery ImportantCareful LayoutCommon PracticeLegend :Figure3‐1:Modulepin‐outwithhighlightedfunctions
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 18 / 30 WLAN/BT System Integration ManualRank Function Pin(s) Layout Remarks1st RFin/out BT_RFWLAN_RFVeryImportantDesignfor50ohmcharacteristicimpedance2nd DCSupplyVCC_3V3VCC_VIO_X1VCC_VIO_X2VeryImportantVCClinesshouldbeshortandwide.Routeawayfromsensitiveanalogsignals.3rd Ground GND CarefulLayout providepropergrounding.DigitalPins:SDIOinterfaceSD_CLK,SD_CMD,SD_DAT_0,SD_DAT_1,SD_DAT_2,SD_DAT_3UART TXD,RXD,CTS,RTSDigitalAudioBT_PCM_DIN,BT_PCM_SYNC,BT_PCM_CLK,BT_PCM_DOUTRESET RESET#SleepClock SLEEP_CLKAntennaDetectionVCC_BT_ANT_DIAG,BT_ANT_DIAG,VCC_WLAN_ANT_DIAG,WLAN_ANT_DIAGAntennaSelectANT_SEL_P,ANT_SEL_NJTAG JTAG_TCK,JTAG_TDI,JTAG_TDO,JTAG_TRSTn,JTAG_TMS_SYS,JTAG_TMS_CPU4th CommonPracticeFollowcommonpracticerulesfordigitalpinrouting.Table3‐1:Pinlistinorderofdecreasingimportanceforlayoutdesign3.2.1.1RFI/OconnectionTheRFantennaconnectionpinBT_RF&WLAN_RFareverycriticalinlayoutdesign.ThePCBlinemustbedesignedtoprovide50Ωcharacteristicimpedanceandminimumlossuptoradiatingelement. ProvidepropertransitionbetweentheBT_RF&WLAN_RFpadstoapplicationboardPCB. IncreaseGNDkeep‐out(i.e.clearance)forBT_RF&WLAN_RFpinstoatleast250μmuptoadjacentpadsmetaldefinitionandupto250μmontheareabelowtheDataModule,asdescribedinFigureXXX. Thetransmissionlineuptoantennaconnectororpadmaybeamicrostriporastripline.Inany
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 19 / 30 WLAN/BT System Integration Manualcasemustbedesignedtoachieve50Ωcharacteristicimpedance. Microstriplinesareusuallyeasiertoimplementandthereducednumberoflayertransitionsuptoantennaconnectorsimplifiesthedesignanddiminishesreflectionlosses.However,theelectromagneticfieldextendstothefreeairinterfaceabovethestriplineandmayinteractwithothercircuitry. Buriedstriplineexhibitsbettershieldingtoincomingandgeneratedinterferences.Thereforearepreferredforsensitiveapplication.Incaseastriplineisimplemented,carefullycheckthattheviapad‐stackdoesnotcouplewithothersignalsonthecrossedandadjacentlayers. Minimizethetransmissionlinelength;theinsertionlossshouldbeminimizedasmuchaspossible,intheorderofafewtenthsofadB. ThetransmissionlineshouldnothaveabruptchangetothicknessandspacingtoGND,butmustbeuniformandroutedassmoothlyaspossible. ThetransmissionlinemustberoutedinasectionofthePCBwhereminimalinterferencefromnoisesourcescanbeexpected. RouteANTlinefarfromothersensitivecircuitsasitisasourceofelectromagneticinterference. AvoidcouplingwithVCCroutingandanalogaudiolines. EnsuresolidmetalconnectionoftheadjacentmetallayeronthePCBstack‐uptomaingroundlayer. AddGNDviasaroundtransmissionline. Ensurenoothersignalsareroutedparalleltotransmissionline,orthatothersignalscrossonadjacentmetallayerIfthedistancebetweenthetransmissionlineandtheadjacentGNDarea(onthesamelayer)doesnotexceed5timesthetracewidthofthemicrostrip,usethe“CoplanarWaveguide”modelfor50Ωcharacteristicimpedancecalculation. Don’troutemicrostriplinebelowdiscretecomponentorothermechanicsplacedontoplayer. Whenterminatingtransmissionlineonantennaconnector(orantennapad)itisveryimportanttostrictlyfollowtheconnectormanufacturer’srecommendedlayout. GNDlayerunderRFconnectorsandclosetoburiedviasshouldbecutoutinordertoremovestraycapacitanceandthuskeeptheRFline50Ω.InmostcasesthelargeactivepadoftheintegratedantennaorantennaconnectorneedstohaveaGNDkeep‐out(i.e.clearance)atleastonfirstinnerlayertoreduceparasiticcapacitancetoground.Notethatthelayoutrecommendationisnotalwaysavailablefromconnectormanufacturer:e.g.theclassicalSMAPin‐Through‐HoleneedstohaveGNDclearedonallthelayersaroundthecentralpinuptoannularpadsofthefourGNDposts.Check50ΩimpedanceofANTline.3.2.1.2MainDCsupplyconnectionTheDCsupplyofWLAN/BTmodulesisveryimportantfortheoverallperformanceandfunctionalityoftheintegratedproduct. VCCconnectionmaycarryamaximumburstcurrentintheorderof0.5A.Therefore,itistypicallyimplementedasawidePCBlinewithshortroutingfromDCsupply(DC‐DCregulator,batterypack,etc) EachvoltagedropintheDCsupplytrackwillrestricttheoperatingmarginatthemainDCsourceoutput.Therefore,thePCBconnectionhastoexhibitaminimumorzerovoltagedrop.AvoidanyseriescomponentwithEquivalentSeriesResistance(ESR)greaterthanafewmΩ. Giventhelargeburstcurrent,VCClineisasourceofdisturbanceforothersignals.ThereforerouteVCCthroughaPCBareaseparatedfromsensitiveanalogsignals.TypicallyitisgoodpracticetointerposeatleastonelayerofPCBgroundbetweenVCCtrackandothersignalrouting. TheVCCsupplycurrentsupplyflowsbacktomainDCsourcethroughGNDasgroundcurrent:provideadequatereturnpathwithsuitableuninterruptedgroundplanetomainDCsource.
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 20 / 30 WLAN/BT System Integration Manual AtankcapacitorwithlowESRisoftenusedtosmoothcurrentspikes.ThisismosteffectivewhenplacedascloseaspossibletoVCC.FrommainDCsource,firstconnectthecapacitorandthenVCC.IfthemainDCsourceisaswitchingDC‐DCconverter,placethelargecapacitorclosetotheDC‐DCoutputandminimizetheVCCtracklength.OtherwiseconsiderusingseparatecapacitorsforDC‐DCconverterandWLAN/BTmoduletankcapacitor. VCC_3V3isdirectlyconnectedtotheRFpoweramplifier.AddcapacitorinthepFrangefromVCCtoGNDalongthesupplypath. SinceVCC_3V3isdirectlyconnectedtoRFPowerAmplifier,voltagerippleathighfrequencymayresultinunwantedspuriousmodulationoftransmitterRFsignal.ThisisespeciallyseenwithswitchingDC‐DCconverters,inwhichcaseitisbettertoselectthehighestoperatingfrequencyfortheswitcherandaddalargeL‐CfilterbeforeconnectingtoWLAN/BTmoduleintheworstcase. ThelargecurrentgeneratesamagneticfieldthatisnotwellisolatedbyPCBgroundlayersandwhichmayinteractwithotheranalogmodules(e.g.VCO)evenifplacedonoppositesideofPCB.InthiscaserouteVCCawayfromothersensitivefunctionalunits. IfVCCisprotectedbytransientvoltagesuppressor/reversepolarityprotectiondiodetoensurethatthevoltagemaximumratingsarenotexceeded,placetheprotectingdevicealongthepathfromtheDCsourcetowardWLAN/BTmodule,preferablyclosertotheDCsource(otherwisefunctionalitymaybecompromised).3.2.1.3ModulegroundingGoodconnectionofthemodulewithapplicationboardsolidgroundlayerisrequiredforcorrectRFperformance.ItsignificantlyreducesEMCissues. ConnecteachGNDpinwithapplicationboardsolidGNDlayer.ItisstronglyrecommendedthateachGNDpadsurroundingVCCandANTpinshaveoneormorededicatedviadowntoapplicationboardsolidgroundlayer. IftheapplicationboardisamultilayerPCB,thenitisrequiredtotighttogethereachGNDareawithcompleteviastackdowntomainboardgroundlayer. Itisrecommendedtoimplementonelayeroftheapplicationboardasgroundplane. GoodgroundingofGNDpadswillalsoensurethermalheatsink.3.2.1.4Digitalpins ExternalReset(RESET#):inputforexternalreset,alogiclowvoltagewillresetthemodule.RESET#havetobeassertedbeforeVCCispoweredON,andthede‐assertionofRESET#needsatleast1msdelayafterVCCispoweredandstable. SDIO(SD_CLK,SD_CMD,SD_DAT_0,SD_DAT_1,SD_DAT_2,SD_DAT_3):theSDIOlayoutmaybecriticaliftheapplicationprocessorisplacedfarawayfromWLAN/BTmoduleorinclosevicinityofRFantenna.Inthefirstcasethelongconnectionmayradiatehigherharmonicofdigitaldata.Inthesecondcasethesameharmonicsmaybepickedupandcreateself‐interferencethatcanreducethesensitivityofWLAN/BTReceiverchannelswhosecarrierfrequencyiscoincidentwithharmonicfrequencies.InthelatercaseusingRFbypasscapacitorsonthedigitallinewillmitigatetheproblem. DigitalAudio(BT_PCM_CLK,BT_PCM_SYNC,BT_PCM_DIN,BT_PCM_DOUT):thePCMinterfacerequiresthesameconsiderationregardingelectro‐magneticinterferenceastheSDIO.KeepthetracesshortandavoidcouplingwithRFlineorsensitiveanaloginputs. UART(TXD,RXD,CTS,RTS):theserialinterfacerequirethesameconsiderationregardingelectro‐magneticinterferenceasforSDIO.KeepthetracesshortandavoidcouplingwithRFlineorsensitiveanaloginputs. JTAG(JTAG_TCK,JTAG_TDI,JTAG_TDO,JTAG_TRSTn,JTAG_TMS_SYS,JTAG_TMS_CPU):thedebug
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 21 / 30 WLAN/BT System Integration Manualinterfacerequirethesameconsiderationregardingelectro‐magneticinterferenceasforSDIO.KeepthetracesshortandavoidcouplingwithRFlineorsensitiveanaloginputs.3.2.2FootprintandpastemaskFigure3‐2andFigure3‐3describethefootprintandproviderecommendationsforthestencilforWLAN/BTmodules.Thesearerecommendationsonlyandnotspecifications.Figure3‐2:WLAN/BTmodulespaddesignFigure3‐3:WLAN/BTmodulesstencildesign Thepastemaskoutlineneedstobeconsideredwhendefiningtheminimaldistancetothenextcomponent. Theexactgeometry,distances,stencilthicknessesandsolderpastevolumesmustbeadaptedtothespecificproductionprocesses(e.g.solderingetc.)ofthecustomer.
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 22 / 30 WLAN/BT System Integration Manual3.2.3PlacementOptimizeplacementforminimumlengthofRFlineandcloserpathfromDCsourceforVCC.3.3ModulethermalconsiderationThetemperatureincreaseofthemainchip88w8688,PALX5511andLDOMAX4835onaWLAN/BTmodulemountedona168x46.45x1.3mmFR4PCBwithahighcoverageofcopper(e.g.theEVK‐G25Hevaluationkit)instillairconditionsarelessthan28 ,25 ,25 respectively.℃℃℃ ThisisbasedonaworsecasewithfullcontinuousWLANTXmode.ThistemperatureincreasewillbedifferentthantheoneprovidedifthemoduleismountedonaPCBwithdifferentsizeandcharacteristics.3.4AntennaguidelinesAntennacharacteristicsareessentialforgoodfunctionalityofthemodule.TheradiatingperformanceofantennashasdirectimpactonthereliabilityofconnectionovertheAirInterface.BadterminationofANTcanresultinpoorperformanceofthemodule.Thefollowingparametersshouldbechecked:ItemRecommendationsItem RecommendationsImpedance 50ΩnominalcharacteristicimpedanceFrequency WIFI:2400MHz~2483.5MHzBT:2400MHz~2483.5MHzV.S.W.R <2:1recommendedReturnLoss S11<‐10dBrecommended,S11<‐8dBacceptableGain <3dBiTable3‐2:GeneralrecommendationforantennaAntennasaretypicallyavailableas: Linearmonopole:typicalforfixedapplication.Theantennaextendsmostlyasalinearelementwithadimensioncomparabletolambda/4ofthelowestfrequencyoftheoperatingband.Magneticbasemaybeavailable.CableordirectRFconnectorsarecommonoptions.Theintegrationnormallyrequiresthefulfillmentofsomeminimumguidelinessuggestedbyantennamanufacturer. Patch‐likeantenna:bettersuitedforintegrationincompactdesigns.TheyaremostlycustomdesignswheretheexactdefinitionofthePCBandproductmechanicaldesignisfundamentalfortuningofantennacharacteristics.Forintegrationobservetheserecommendations: Ensure50Ωantennatermination,minimizetheV.S.W.R.orreturnloss,asthiswilloptimizetheelectricalperformanceofthemodule. Selectantennawithbestradiatingperformance. Ifacableisusedtoconnecttheantennaradiatingelementtoapplicationboard,selectashortcablewithminimuminsertionloss.Thehighertheadditionalinsertionlossduetolowqualityorlongcable,thelowertheconnectivity. Followtherecommendationsoftheantennamanufacturerforcorrectinstallationanddeployment. Donotincludeantennawithinclosedmetalcase. DonotplaceantennainclosevicinitytoendusersincetheemittedradiationinhumantissueislimitedbyS.A.R.regulatoryrequirements. Donotusedirectivityantennasincetheelectromagneticfieldradiationintensityislimitedinsomecountries. Takecareofinteractionbetweenco‐locatedRFsystemssincetheWIFI/BTtransmittedpowermayinteractordisturbtheperformanceofcompanionsystems.
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 23 / 30 WLAN/BT System Integration Manual Placeantennafarfromsensitiveanalogsystemsoremploycountermeasurestoreduceelectromagneticcompatibilityissuesthatmayarise.3.4.1AntennaterminationWLAN/BTmodulesaredesignedtoworkona50Ωload.However,realantennashavenoperfect50Ωloadonallthesupportedfrequencybands.Toreduceasmuchaspossibleperformancedegradationduetoantennamismatch,thefollowingrequirementsshouldbemet: Measuretheantennaterminationwithanetworkanalyzer:connecttheantennathroughacoaxialcabletothemeasurementdevice,the|S11|indicateswhichportionofthepowerisdeliveredtoantennaandwhichportionisreflectedbytheantennabacktothemoduleoutput. Agoodantennashouldhavea|S11|below‐10dBovertheentirefrequencyband.Duetominiaturization,mechanicalconstraintsandotherdesignissues,thisvaluewillnotbeachieved.Avalueof|S11|ofabout‐8dBisacceptable.3.4.2AntennadiagnosisfunctionalityTheinternalantennadiagnosiscircuitisbasedonADCmeasurementatANT_DIAGpin:theRFportisDCcoupledtotheADCunitintheapplicationprocessorwhichinjectsaDCvoltage(3.3V)onVCC_ANT_DIAGandmeasurestheresultingDCvoltagetoevaluatetheresistancefromANTpadtoGND.TheantennadetectionisperformedbythemeasurementoftheresistancefromANTpadtoGND.Toachievegoodantennadetectionfunctionality,useanRFantennawithbuilt‐inresistorfromANTsignaltoGND,orimplementanequivalentsolutionwithacircuitbetweentheantennacableconnectionandtheradiatingelement.PleasenotethattheDCimpedanceatRFportforsomeantennasmaybeaDCopen(e.g.linearmonopole)oraDCshorttoreferenceGND(e.g.PIFAantenna).Forthoseantennas,withoutthediagnosticcircuitFigure53,themeasuredDCresistancewillbealwaysontheextremeofmeasurementrange(respectivelyopenorshort),andtherewillbenomeantodistinguishfromdefectonantennapathwithsimilarcharacteristic(respectively:removaloflinearantennaorRFcableshortedtoGNDforPIFAantenna).Furthermore,anyotherDCsignalinjectedtotheRFconnectionfromANTconnectortoradiatingelementwillalterthemeasurementandproduceinvalidresultsforantennadetection.Itisrecommendedtouseanantennawithabuilt‐indiagnosticresistorof51kΩtoassuregoodantennadetectionfunctionalityandtoavoidareductionofmoduleRFperformances.
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 24 / 30 WLAN/BT System Integration Manual4.HandlingandSoldering4.1Packaging,shipping,storageandmoisturepreconditioningHandlingRequirementsDONOTTOUCHANYPINOFWIFIMODULEWHILEASSEMBLYING.MoisturepreconditioningThisWLAN/BTmodulemeetsMSL3.PleasefollowJ‐STD‐033Btohandlethismodule.4.2SolderingRequirements4.2.1SolderingIronSolderingSolderTemperature:350oCImmersionDuration:2~3seconds4.2.2ReflowProfileAconvectiontype‐solderingovenisstronglyrecommendedovertheinfraredtyperadiationoven.Convectionheatedovensallowprecisecontrolofthetemperatureandallpartswillbeheatedupevenly,regardlessofmaterialproperties,thicknessofcomponentsandsurfacecolor.Considerthe"IPC‐7530Guidelinesfortemperatureprofilingformasssoldering(reflowandwave)processes.”PreheatPhaseInitialheatingofcomponentleadsandballs.Residualhumiditywillbedriedout.Pleasenotethatthispreheatphasewillnotreplacepriorbakingprocedures.Temperatureriserate:max3°C/sIfthetemperatureriseistoorapidinthepreheatphaseitmaycauseexcessiveslumping.PreheatTime:60~120secIfthepreheatisinsufficient,ratherlargesolderballstendtobegenerated.Conversely,ifperformedexcessively,fineballsandlargeballswillbegeneratedinclusters.EndTemperature:140~190°CIfthetemperatureistoolow,non‐meltingtendstobecausedinareascontaininglargeheatcapacity.Heating/ReflowPhaseThetemperaturerisesabovetheliquidstemperatureof227°C.Avoidasuddenriseintemperatureastheslumpofthepastecouldbecomeworse.Limittimeabove227°Cliquidstemperature:30~70secPeakreflowtemperature:235~250°CCoolingPhaseAcontrolledcoolingavoidsnegativemetallurgicaleffects(solderbecomesmorebrittle)ofthesolderandpossiblemechanicaltensionsintheproducts.Controlledcoolinghelpstoachievebrightsolderfilletswithagoodshapeandlowcontactangle.Temperaturefallrate:max4°C/s
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 25 / 30 WLAN/BT System Integration Manual4.2.3SolderingPasteUseof"NoClean"solderingpasteisstronglyrecommended,asitdoesnotrequirecleaningafterthesolderingprocesshastakenplace.Thepastelistedintheexamplebelowmeetsthesecriteria.SolderingPaste:ACS‐SN100C‐MA1Alloyspecification:Sn‐0.7Cu‐0.05Ni+Ge(99.2%Tin/0.7%Copper/0.05%Nickel/Germanium)MeltingTemperature:227°CStencilThickness:120μmforbaseboardsThefinalchoiceofthesolderingpastedependsontheapprovedmanufacturingprocedures.Thequalityofthesolderjointsontheconnectors(’halfvias’)shouldmeettheappropriateIPCspecification.
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 26 / 30 WLAN/BT System Integration Manual4.2.4PCBLayoutFootprintDesign4.2.4.1ModuleDimensions 4.2.4.2PCBLayoutPadDesign 
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 27 / 30 WLAN/BT System Integration Manual4.2.4.3StencilDesignStencilthickness:0.10mm~0.15mm.Solderpastethickness:0.12mm~0.18mm  
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 28 / 30 WLAN/BT System Integration Manual5ProductTesting5.1ProductiontestWNCfocusesonhighqualityforitsproducts.Allunitsproducedarefullytested.Defectiveunitsareanalyzedindetailtoimprovetheproductionquality.Thisisachievedwithautomatictestequipment,whichdeliversadetailedtestreportforeachunit.Thefollowingmeasurementsaredone: Measurementofvoltagesandcurrents MeasurementofRFcharacteristics Testattemperature75℃for30minutes
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 29 / 30 WLAN/BT System Integration ManualFederalCommunicationCommissionInterferenceStatementThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice,pursuanttoPart15oftheFCCRules.Theselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferenceinaresidentialinstallation.Thisequipmentgenerates,usesandcanradiateradiofrequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstructions,maycauseharmfulinterferencetoradiocommunications.However,thereisnoguaranteethatinterferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescauseharmfulinterferencetoradioortelevisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,theuserisencouragedtotrytocorrecttheinterferencebyoneofthefollowingmeasures:●Reorientorrelocatethereceivingantenna.●Increasetheseparationbetweentheequipmentandreceiver.●Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiverisconnected.●Consultthedealeroranexperiencedradio/TVtechnicianforhelp.FCCCaution:Anychangesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliancecouldvoidtheuser’sauthoritytooperatethisequipment.ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothefollowingtwoconditions:(1)Thisdevicemaynotcauseharmfulinterference,and(2)thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycauseundesiredoperation.ForproductavailableintheUSA/Canadamarket,onlychannel1~11canbeoperated.Selectionofotherchannelsisnotpossible.Thisdeviceanditsantenna(s)mustnotbeco‐locatedoroperationinconjunctionwithanyotherantennaortransmitter.FCCRadiationExposureStatement:ThisequipmentcomplieswithFCCradiationexposurelimitssetforthforanuncontrolledenvironment.Thisequipmentshouldbeinstalledandoperatedwithminimumdistance20cmbetweentheradiator&yourbody.IMPORTANT NOTE: This module is intended for OEM integrator. The OEM integrator is still responsible for the FCC compliance requirement of the end product, which integrates this module. 20cm minimum distance has to be able to be maintained between the antenna and the users for the host this module is integrated into. Under such configuration, the FCC radiation exposure limits set forth for an population/uncontrolled environment can be satisfied. Any changes or modifications not expressly approved by the manufacturer could void the user's authority to operate this equipment. USERS MANUAL OF THE END PRODUCT: In the users manual of the end product, the end user has to be informed to keep at least 20cm separation with the antenna while this end product is installed and operated. The end user has to be informed that the FCC radio-frequency exposure guidelines for an uncontrolled environment can be satisfied. The end user has to also be informed that any changes or modifications not expressly approved by the manufacturer could void the user's
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of WNC. 30 / 30 WLAN/BT System Integration Manualauthority to operate this equipment. If the size of the end product is smaller than 8x10cm, then additional FCC part 15.19 statement is required to be available in the users manual: This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference and (2) this device must accept any interference received, including interference that may cause undesired operation. LABEL OF THE END PRODUCT: The final end product must be labeled in a visible area with the following " Contains TX FCC ID: NKRUWMWBT-CWM01". If the size of the end product is larger than 8x10cm, then the following FCC part 15.19 statement has to also be available on the label: This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference and (2) this device must accept any interference received, including interference that may cause undesired operation. 

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