蓝牙耳机生产测试方法及标准Word文件下载.docx

蓝牙耳机生产测试方法及标准Word文件下载.docx

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Keywords：

BluetoothHeadset,PCBA,RFtest,Acoustic

Summary：

ThetestspecificationforFunction,RFtest,PCBAtestandacoustictest

ReferenceList：

ReferenceList

Name

No

Position

Press

1

TestProcedure

BeforestartATE,engineershouldcheckandenterappropriatevaluesinsettingenvironment.

ManualSettings

●Softwareversionnumber,eg“20131213”

●Upperandlowerlimitforeachtestitems

●StartedandstoppedBluetoothaddressrange

●RFtestprobeandcablelostforcalibrationandcompensation

StationRequirement

●Ineachstation,ATEneedtoread,compareanddisplaythesoftwareversionnumber,whichisstoredinPSKey0x02B6.Itisa16bits,4digitsBCD,eg“6AA5”

●Alltestitemsshoulddisplayonthescreen

●Eachproductiondayhavealogfileforeachstation.EachlogfileincludesallsamplesserialnoorBTaddresswithcorrespondingtestingdata.ThefileisinASCIIformat.Eachtestitemplacedinonecolumn.Filenamemustincludethestationno,dateandtimeforreference.

1.1Station1ModuleDownload

-Measurecurrentconsumptionat3.3V

-Downloadandverifythesoftware（includeapplicationandtestmode,ortestmodeonly）

1.2Station2Modulefunctionaltest（Freqtrim,PIO,AIO,voltageandcurrent）

Checkcurrentconsumption

-Feeda3.3Vsupplytothe3.3Vinput.Measurethe3.3Vinputcurrentandmeasurethevoltageat1.8Voutputfromthemodule.[Savethecurrentandvoltagetologfile]

Frequencytrim

-ControltheDUTtotransmitaCWatChannel39（2441MHz）,adjusttheCrystalfrequencytrimvaluetomeetthetarget.WritethecorrectvalueintoPSkey0x01F6（e.g.0x0026）,thenresetDUTandverify.[Savethevalueinlogfile]

CheckPIOandAlO

-InputthePIO（0-10）pins010101010101,readthelogicfromPIOandverify.

-Repeattheaboveandinvertthelo舒c（101010101010）.readthelogicfromPlOandverify.[Savetheresulttologfile]

-InputtheAIO（O-I）pinsatl.5V（don'

t>

I.75V）,readthelevelformAlOandverify.[Savethereadingstologfile]

CheckAudiopath

-SetDUTintoPCMLoopbackmode.Feed1kHz,5mVrmstomicinputandmeasure,thespeakeroutputlevel.[Savethespeakerleveltologfile]

1.3Station3ModuleRFTest（Conductedtest）

-EnabletheDUTtoenterBluetoothTestModebyusing"

RFCLI.EXE"

command

-SetthemeasuringconditionofE1852Baccordingthefollowingsetting.

RFTest（Conducted）

Transmittertest

Conditions:

-Carrier:

0

-Packettype:

DHI

-Packetlength:

27

-Pollperiod:

10

-RFlevel:

-50dBm

-DatafordeltaF2:

BS55（10101010）

-DatafordeltaFl:

BSOF（00001111）

-Meas.Averagingfactor:

100（maybelessforfastrespond）

-Couplingloss:

0dB

Measure:

-AveragePower

-Freq.Offset

-Freq.Drift

-Freq.Drift/Rate

-Avg,DeltaF2max

-Avg,DeltaF1max

-PacketErrorRate（PER）

-BitErrorRate（BER）

LoopbackTest

-Whitening:

Enable

-75dBm

-Modulationindex:

0.32

-No.ofbits:

10000

-BitErrorRatc（BER）

RepeattheabovetestforCarrier39,78

1.4Station4MainBoardPCBAFunctionaltest（PIOAIO,voltageandcurrent）

Supply3.7VtotheBAT+toGND

CheckPlOandAIO

InputdifferentlogictoPIO（0-11）whentherearetestpad,readallPIOandverify.

ForBTHSClip:

-PIO（8,10,）isDON'

TCARE

-OnlytestpadsforPlO（9）.

-ThelogicofPIO（6）isinverted.itstestpadsis"

MFB"

-ReadandverifyAIO（0）.AIO

（1）isDon'

tCare.

ForBTRadio:

-TBD

SettheDUTtoPCMloopbackmode.FeedlkHz,5mVrmstomicinputandmeasurethelevelfromthespeakeroutput.

MeasureOffCurrent

-ResetDUT,measuretheinputcurrentat3.7V

MeasureStandbyCurrent

-EnableDUTtoReceivemode（RXSTARTIat2442MHz）.

-McaSUrctheinputcurrentat3.7V

MeasureOperationCurrent

-EnableDUTtotransmitmode（TXSTARTat2442MHz）.

-Measuretheinputcurrentat3.7V.

MeasureChargingCurrent

-ConnectaElectronicLoadtoBAT+toGND.SettheE-Ioadtodrawconstantcurrentof75mA.Feed5VtoDC+toGND.Measurethecurrentat5V.

1.5Station5MainboardPCBARFtest（conductedtest）

RFTest（conducted）

1.6Station6MainboardPCBARFtest（Couplingtest）

-Testitemsmaybedecreasedinthefuture.

RFTestcoupling

FixtureandDUTmustbeinShieldBox.

-BitErrorRate（BER）

WritePSKeytoflashmemory

-AfteralltesteditemsarePASS:

-Writeaunique48bitsBluetoothaddressintoPSKeyOx0001.

-WriteOx000toPSKeyOxOIF9（SetHostInterfacetoNoHost）

-WriteOx000toPSKeyOx025D（EnableVM）

1.7Station7Acoustictestaftercasing

1.SettingtheBatteryvoltaget04.10V--4.24V,adjusttheChargervoltageTrimvaluetomeetthetarget.WritethecorrectvalueintoPSKey0x03b7,thenresetDUTandverify.[Savethevalueinlogfile]

Settingchargingvoltageto5V,

2.ThevoltageofVBATpinmustbewithin3.8--4.6Vwithoutbattery.

AcousticTest

-Testingmustbeinshieldroomandsilentroom.

-Aftercasingassembly,useCasiraforAudioGateway.PairingtheBTheadsetandcarryoutacoustictest.MeasureTXandRXloudnessand

1.8Station8ProductRFSensitivityTest

ProductRFsensitivity<

=-70dBm

Testingrequirement:

N4010,ShieldboxandcomputerwithSPI

Testingmethod:

1）PressMFBandthenplugcharger,thenreleaseMFB,thenpress

2）LEDwillflashpurple.

3）PuttheDUTonthetestjiginsidetheshieldbox.Closetheshieldbox.

4）SetupforN4010

ThesettingofthetestershouldbehoppingON

i.Mode->

LossComp->

ApplyLossCompensation”V”->

FixLosstodesired“DB”（R&

Dwillprovideonereferencesampleforcalibration.Ifnotprovided,pleaseuseB3040neforcalibration）Therefore.theFixLossshouldbesetbycalibration.Config->

EUT->

InquiryProcedure->

whileBTaddressisshownontheScreen->

SelectandReturnBDA

ii.Test->

Activeto"

3"

->

Select“SingleSlotSensitivity"

iii.Edit->

TestMode/Pkt/Pwr->

Type=HV3;

SetTransmitPowert070“

5）Toseetheresult:

Results->

Select"

SingleSlotSensitivity"

DetailedResults

IfBER<

=0.1

RecordtheTransmitPower.Thisisthesensitivity.

IfBER>

0.1

IncreasetheTransmitPowerin4）-ivuntilBER<

=0.1.

OtherTest

Chargers

Allchargersmustbefullchecked.Measureoutputvoltageandcurrentfordifferentinputvoltage.

Input100Vrms（AC）andconnectaload（250hm>

2Wresistor）attheoutput,outputshouldbe5Vand200mA.

Input240Vrms（AC）andconnectaload（250hm>

RechargeableBatteries

AlltheLithium-ionPolymer（LIP）rechargeablebatterymustbefullcheckedbeforeproduction.Allbatteriesarechargeupby0.5Cthendischargebya480hmresistor.Measurethedischargingtimeuntilvoltageisdroppedto3V.Thedischargingtimeatleast2hours

2Specification

2.1StationIModuleDownload

Downloadandverification:

ShouldbePASSED

2.2Station2Modulefunctionaltest（Freqtrim,PIO,AIO,voltageandcurrent）

Moduleturnoncurrent:

1mA-3mA（ForATESetup:

0.2mA-4.5mA）

Moduleoutputvoltage:

1.75V-1.85V

Trimmedfreq.:

2441MHz+/-3kHz

Trimmedvalue:

0-63

PIO（0-10）:

Pass

AIO（0）:

0.9V–1.1V

Audiooutputlevel:

0.1Vrms-0.5Vrms

（Micinput1kHz5mVrms）

2.3Station3ModuleRFTest（conductedtest）

RFandaudiotest（conducted）

Carrier0

Items

Descriptions

Lowerlimit

Upperlimit

Units

AveragePower

-6

4

DBm

PeakPower

Freq.Offset

-75

75

kHz

Freq.Drift

-25

25

Freq.DriftRate

-20

20

kHz/50us

Avg,DeltaF2max

115

175

Avg,DeltaFlmax

140

DeltaF2/DeltaF

0.75

1

-

PacketErrorRate（PER）

50

%

BitErrorRate（BER）

0.1

Carrier39

AveragePowe