蓝牙耳机生产检验测试方法及规范标准

1、Product nameConfidentiality levelBluetooth HeadsetOpenProduct versionTotal 22 pagesDraftProduct Test Specification forBluetooth HeadsetPrepared byLishuzhengDate2013-12-13Reviewed byDateApproved byDateAuthorized byDate(for internal use only )Change HistoryDateVer.DescriptionAuthor2013/12/13DraftIniti

2、al versionLishuzhengContents Tables TOC o 1-5 h z HYPERLINK l bookmark7 o Current Document Test Procedure 6. HYPERLINK l bookmark9 o Current Document Station 1 Module Download 6. HYPERLINK l bookmark11 o Current Document Station 2 Module functional test (Freq trim, PIO, AIO, voltage and current)6 HY

3、PERLINK l bookmark13 o Current Document Station3 Module RF Test (Conducted test) 7 HYPERLINK l bookmark15 o Current Document Station4 Main Board PCBA functional test(PIO AIO, voltage and current) 8 HYPERLINK l bookmark17 o Current Document Station5 Main board PCBA RF test(conducted test) 9 HYPERLINK

4、 l bookmark19 o Current Document Station6 Main board PCBA RF test(Coupling test) 10 HYPERLINK l bookmark21 o Current Document Station7 Acoustic test after casing 1. 1 HYPERLINK l bookmark23 o Current Document Station8 Product RF Sensitivity Test 11 HYPERLINK l bookmark25 o Current Document Specifica

5、tion 1.2. HYPERLINK l bookmark27 o Current Document StationI Module Download 1.2 HYPERLINK l bookmark29 o Current Document Station2 Module functional test (Freqtrim, PIO, AIO, voltage and current) 12 HYPERLINK l bookmark31 o Current Document Station3 Module RF Test (conductedtest) 1. 3 HYPERLINK l b

6、ookmark33 o Current Document Station4 Main Board PCBAFunctional test (PIO,AIO, voltage an current) 15 HYPERLINK l bookmark35 o Current Document Station5 Main Board PCBARF Test (conducted test) 15 HYPERLINK l bookmark37 o Current Document Station6 Main Board PCBARF Test (coupling test ) 17 HYPERLINK

7、l bookmark39 o Current Document Station7 Acoustic test aftercasing 1.9 HYPERLINK l bookmark41 o Current Document Station8 Product RF Sensitivity Test 20 HYPERLINK l bookmark43 o Current Document Product Specification Electrical Parameters checklist 20 HYPERLINK l bookmark45 o Current Document Curren

8、t test 20 HYPERLINK l bookmark47 o Current Document Audio test 21 HYPERLINK l bookmark49 o Current Document Acoustic test 21 HYPERLINK l bookmark51 o Current Document Range test 2.1. HYPERLINK l bookmark53 o Current Document Power management 2.2 HYPERLINK l bookmark55 o Current Document Other 2.2.Pr

9、oduct Test SpecificationKey words : Bluetooth Headset, PCBA, RF test, AcousticSummary : The test specification for Function, RF test, PCBA test and acoustic testReference ListReference ListNameAuthorNoDatePositionPress1 Test ProcedureBefore start ATE, engineer should check and enter appropriate valu

10、es in setting environment.Manual SettingsSoftware version number, eg 20131213 ”Upper and lower limit for each test itemsStarted and stopped Bluetooth address rangeRF test probe and cable lost for calibration and compensationStation RequirementIn each station, ATE need to read, compare and display th

11、e software version number, which is stored in PS Key 0 x02B6. It is a 16 bits, 4 digits BCD, eg“6AA5 ”All test items should display on the screenEach production day have a log file for each station. Each log file includes all samples serial no or BT address with corresponding testing data. The file

12、is in ASCII format. Each test item placed in one column. File name must include the station no, date and time for reference.Station 1 Module DownloadMeasure current consumption at 3.3VDownload and verify the software (include application and test mode, or test mode only)Station 2 Module functional t

13、est (Freq trim, PIO, AIO, voltage and current)Check current consumptionFeed a 3.3V supply to the 3.3V input. Measure the 3.3V input current and measure the voltage at 1.8V output from the module. Save the current and voltage to log fileFrequency trimControl the DUT to transmit a CW at Channel 39(244

14、1 MHz), adjust the Crystal frequency trim value to meet the target. Write the correct value into PS key 0 x01F6(e.g. 0 x0026), then reset DUT and verify. Save the value in log fileCheck PIO and AlOInput the PIO(0-10) pins 0101 0101 0101, read the logic from PIO and verify.Repeat the above and invert

15、 the lo 舒 c (1010 1010 1010). read the logic from PlOand verify.Save the result to log fileInput the AIO(O-I) pins at l.5V(dont I.75V), read the level form AlO and verify.Save the readings to log fileCheck Audio pathSet DUT into PCM Loopback mode. Feed 1 kHz, 5mVrms to mic input and measure, the spe

16、aker output level. Save the speaker level to log fileStation 3 Module RF Test (Conducted test)Enable the DUT to enter Bluetooth Test Mode by using RFCLI.EXE commandSet the measuring condition of E1852B according the following setting.RF Test(Conducted)Transmitter testConditions:Carrier: 0Packet type

17、: DHIPacket length: 27Poll period: 10RF level: -50dBmData for delta F2: BS55(10101010)Data for delta Fl: BSOF(00001111)Meas. Averaging factor: 100 (may be less for fast respond)Coupling loss: 0dBMeasure:Average PowerFreq.OffsetFreq.DriftFreq.Drift/ RateAvg, Delta F2 maxAvg, Delta F1 maxPacket Error

18、Rate (PER)Bit Error Rate (BER)Loopback TestConditions:Whitening: EnableRF level: -75dBmModulation index : 0.32No. of bits: 10000Measure:Bit Error Ratc (BER)Packet Error Rate (PER)Repeat the above test for Carrier 39, 78Station 4 Main Board PCBA Functional test (PIO AIO, voltage and current)Supply 3.

19、7V to the BAT+ to GNDCheck PlO and AIOInput different logic to PIO(0-11)when there are test pad, read all PIO and verify.For BT HS Clip:PIO( 8, 10,) is DONT CAREOnly test pads for PlO (9).The logic of PIO(6) is inverted. its test pads is MFBRead and verify AIO(0). AIO(1) is Dont Care.For BT Radio:TB

20、DCheck Audio pathSet the DUT to PCM loopback mode. Feed lkHz, 5mVrms to mic input and measure the level from the speaker output.Check current consumptionMeasure Off CurrentReset DUT, measure the input current at 3.7VMeasure Standby CurrentEnable DUT to Receive mode (RXSTARTI at 2442 MHz).McaSUrc the

21、 input current at 3.7VMeasure Operation CurrentEnable DUT to transmit mode (TXSTART at 2442MHz).Measure the input current at 3.7V.Measure Charging CurrentConnect a Electronic Load to BAT+ to GND. Set the E-Ioad to draw constant current of 75mA. Feed 5V to DC+ to GND. Measure the current at 5V.Statio

22、n 5 Main board PCBA RF test (conducted test)RF Test (conducted)Transmitter testConditions:Carrier: 0Packet type: DHIPacket length: 27Poll period: 10RF level: -50dBmData for delta F2: BS55(10101010)Data for delta Fl: BSOF(00001111)Meas. Averaging factor: 100 (may be less for fast respond)Coupling los

23、s: 0dBMeasure:Average PowerFreq.OffsetFreq.DriftFreq.Drift/ RateAvg, Delta F2 maxAvg, Delta F1 maxPacket Error Rate (PER)Bit Error Rate (BER)Loopback TestConditions:Whitening: EnableRF level: -75dBmModulation index : 0.32No. of bits: 10000Modulation index : 0.32Modulation index : 0.32Measure:Bit Err

24、or Rate (BER)Packet Error Rate (PER)Repeat the above test for Carrier 39, 78Station 6 Main board PCBA RF test(Coupling test)Test items may be decreased in the future.RF Test couplingFixture and DUT must be in Shield Box.Transmitter testConditions:Carrier: 0Packet type: DHIPacket length: 27Poll perio

25、d: 10RF level: -50dBmData for delta F2: BS55(10101010)Data for delta Fl: BSOF(00001111)Meas. Averaging factor: 100 (may be less for fast respond)Coupling loss: 0dBMeasure:Average PowerFreq. OffsetFreq. DriftFreq. Drift/ RateAvg, Delta F2maxAvg, Delta F1maxPacket Error Rate (PER)Bit Error Rate(BER)Lo

26、opback TestConditions:Whitening: EnableRF level: -75dBmNo. of bits: 10000Measure:Bit Error Rate (BER)Packet Error Rate (PER)Repeat the above test for Carrier 39, 78Write PS Key to flash memoryAfter all tested items are PASS:Write a unique 48 bits Bluetooth address into PS Key Ox0001.Write Ox000 to P

27、S Key OxOIF9 (Set Host Interface to No Host)Write Ox000 to PS Key Ox025D (Enable VM)Station 7 Acoustic test after casingSetting the Battery voltage t0 4.10V-4.24V, adjust the Charger voltage Trim value tomeet the target. Write the correct value into PS Key 0 x03b7 , then reset DUT and verify.Save th

28、e value in log fileSetting charging voltage to 5V,The voltage of VBAT pin must be within 3.8-4.6V without battery.Acoustic TestTesting must be in shield room and silent room.After casing assembly, use Casira for Audio Gateway. Pairing the BT headset and carryout acoustic test. Measure TX and RX loud

29、ness and1.8 Station 8 Product RF Sensitivity TestProduct RF sensitivity Loss Comp - Apply Loss CompensationV -Fix Loss to desiredDB (R&D will provide one reference sample for calibration. If not provided, please use B304 0ne for calibration) Therefore. the Fix Loss should be set by calibration. Conf

30、ig- EUT- Inquiry Procedure-while BT address is shown onthe Screen-Select and Return BDATest - Active to 3- Select Single Slot SensitivityEdit - Test Mode /Pkt /Pwr-Type = HV3; Set Transmit Power t0 70To see the result:Results - Select Single Slot Sensitivity - Detailed ResultsIf BER 0.1Increase the

31、Transmit Power in 4)-iv until BER 2W resistor)at theoutput,outputInput 100Vrms (AC) andconnect aload (250hm 2W resistor)at theoutput,outputshould be 5V and 200mA.should be 5V and 200mA.Input 240Vrms (AC) andconnect aload (250hm 2W resistor)at theoutput,outputInput 240Vrms (AC) andconnect aload (250h

32、m 2W resistor)at theoutput,outputshould be 5V and 200mA.Rechargeable Batteriesshould be 5V and 200mA.Rechargeable BatteriesAll the Lithium-ion Polymer (LIP)rechargeablebattery mustbe fullcheckedbeforeAll the Lithium-ion Polymer (LIP)rechargeablebattery mustbe fullcheckedbeforeproduction. All batteri

33、es are charge up by 0.5C then discharge by a 480hm resistor.Measure the discharging time until voltage is dropped to 3V. The discharging time atleast 2 hours2 SpecificationStation I Module DownloadDownload and verification: Should be PASSEDModule turn on current:Module output voltage:Trimmed freq. :

34、Trimmed value:Module turn on current:Module output voltage:Trimmed freq. :Trimmed value:PIO(0-10):1mA - 3mA (For ATE Setup: 0.2mA - 4.5mA)1.75V - 1.85V2441MHz +/-3 kHz0 - 63PassAIO(0):0.9V - 1.1VAudio output level:0.1Vrms - 0.5Vrms(Mic input 1 kHz 5mVrms)Station 3 Module RF Test (conducted test)RF a

35、nd audio test(conducted)Carrier 0ItemsDescriptionsLower limitUpper limitUnitsAverage Power-64DBmPeak Power-64DBmFreq. Offset-7575kHzFreq. Drift-2525kHzFreq.Drift Rate-2020kHz/50usAvg, Delta F2max115175kHzAvg, Delta Fl max140175kHzDeltaF2/DeltaF0.751-Packet Error Rate050%(PER)Bit Error Rate (BER)00.1

36、%Carrier 39ItemsDescriptionsLower limitUpper limitUnitsAverage Power-64dBmPeak Power-64dBmFreq. Offset-7575kHzFreq. Drift-2525kHzFreq.Drift Rate-2020kHz/50usAvg, Delta F2max115175kHzAvg, Delta Fl max140175kHzDeltaF2/DeltaF0.751-Packet Error Rate050%(PER)Bit Error Rate (BER)00.1%Carrier 78ItemsDescri

37、ptionsLower limitUpper limitUnitsAverage Power-64dBmPeak Power-64dBmFreq. Offset-7575kHzFreq. Drift-2525kHzFreq.Drift Rate-2020kHz/50usAvg, Delta F2max115175kHzAvg, Delta Fl max140175kHzDeltaF2/DeltaF0.751-Packet Error Rate050%0.1(PER)0.1Bit Error Rate (BER)Station 4 Main Board PCBA Functional test

38、(PIO,AIO, voltage an current)PI0(0,123,6,9),LED(0,1): PassAIO(0): 1.48V -1.7 VSpeaker Level: 0.2V - 0.5 V(Mic input I kHz 5mVnns)Operation Current:10mA - 22 mAOff Mode Current:0.1mA - 0.4 mA (For ATE Setup:0.1mA 3 mA)Standby Current:1.0mA - 5mAFast charging Current: 9 mA - 110 mAFull charging Curren

39、t: 5mA-9mAStation 5 Main Board PCBA RF Test (conducted test)RF and audio test (conducted )Carrier 0ItemsDescriptionsLower limitItemsDescriptionsLower limitUpper limitUnitsAverage Power-84dBmPeak Power-84dBmFreq. Offset-7575kHzFreq. Drift-2525kHzFreq.Drift Rate-2020kHz/50usAvg, Delta F2max115175kHzAv

40、g, Delta Fl max140175kHzDeltaF2/DeltaF0.751.5-Packet Error Rate050%(PER)Bit Error Rate (BER)00.1%Carrier 39ItemsDescriptionsLower limitUpper limitUnitsAverage Power-84dBmPeak Power-84dBmFreq. Offset-7575kHzFreq. Drift-2525kHzFreq.Drift Rate-2020kHz/50usAvg, Delta F2max115175kHzAvg, Delta Fl max14017

41、5kHzDeltaF2/DeltaF0.751.5-Packet Error Rate050%(PER)Bit Error Rate (BER)00.1%Carrier 78ItemsDescriptionsLower limitUpper limitUnitsAverage Power-84dBmPeak Power-84dBmFreq. Offset-7575kHzFreq. Drift-2525Freq.Drift Rate-2020Avg, Delta F2max115175Avg, Delta Fl max140175DeltaF2/DeltaF0.751.5Packet Error

42、 Rate050(PER)Bit Error Rate (BER)00.1kHzkHz/50uskHzkHz-%2.6 Station 6 Main Board PCBA RF Test (coupling test )RF test (coupling)Carrier 0ItemsDescriptionsLower limitUpper limitAverage Power-64Peak Power-64Freq. Offset-7575Freq. Drift-2525Freq.Drift Rate-2020Avg, Delta F2max115175Avg, Delta Fl max140

43、175DeltaF2/DeltaF0.751.5Packet Error Rate050UnitsdBmdBmkHzkHzkHz/50uskHzkHz-%(PER)Bit Error Rate (BER)00.1%Carrier 39ItemsDescriptionsLower limitUpper limitUnitsAverage Power-64dBmPeak Power-64dBmFreq. Offset-7575kHzFreq. Drift-2525kHzFreq.Drift Rate-2020kHz/50usAvg, Delta F2max115175kHzAvg, Delta F

44、l max140175kHzDeltaF2/DeltaF0.751.5-Packet Error Rate050%(PER)Bit Error Rate (BER)00.1%Carrier 78ItemsDescriptionsLower limitUpper limitUnitsAverage Power-64dBmPeak Power-64dBmFreq. Offset-7575kHzFreq. Drift-2525kHzFreq.Drift Rate-2020kHz/50usAvg, Delta F2max115175kHzAvg, Delta Fl max140175kHzDeltaF

45、2/DeltaF0.751.5-Packet Error Rate050%(PER)Bit Error Rate (BER)00.1%Station 7 Acoustic test after casingAcoustic TestItemsDescriptionsLower limitUpper limitUnitsMicrophone TX at l kHz-49-41dBEarphone Assemble at l104119dBkHzFinal unit RX at l kHz109119dBBuzzer sound leave at 175100dB(At 10 cm)kHzMicr

46、ophone frequency respond mask:Freq /Hz20030039860090010001336200035004005000Upper limit+5+6+6.+7+4.+4+2.5+2.-5.0-10.8835Lower limit-6.2-5.1-4.4-4.4-4.-4.7-8.3-11.-14.-18.5-21355Complete Ear piece frequency respond mask:Freq /Hz2003003986009001k2k3k4k5kUpper+5+7.58.8+9.8+6+5.-3.-10.-14.8-22limit355Lowerlimit-5.3-3-1.9-1-5.4-6.5-16-23-25(3447Hz)Station 8 Product RF Sensitivity TestFor the sensitivity -70dBm is considered to be Failed.Charger testWhen input 100 Vrms(AC):Output voltage: 5V+/-0.25VOutput current:200mA +/- 10mAWhen input 240 Vrms(AC):