蓝牙耳机生产测试方法及标准

1、Product Test SpecificationPlease input confidential levelProduct nameConfidentiality levelBluetooth HeadsetOpenProduct versionTotal 18 pagesDraftProduct Test Specification for Bluetooth HeadsetPrepared by LishuzhengDate2013-12-13Reviewed by DateApproved byDateAuthorized byDate（ for internal use only

2、）Change HistoryDateVer.DescriptionAuthor2013/12/13DraftInitial versionLishuzhengContents Tables1Test Procedure61.1Station 1 Module Download61.2Station 2 Module functional test (Freq trim, PIO, AIO, voltage and current)61.3Station 3 Module RF Test (Conducted test)71.4Station 4 Main Board PCBA functio

3、nal test(PIO AIO, voltage and current)81.5Station 5 Main board PCBA RF test(conducted test)91.6Station 6 Main board PCBA RF test(Coupling test)101.7Station 7 Acoustic test after casing111.8Station 8 Product RF Sensitivity Test112Specification122.1Station I Module Download122.2Station 2 Module functi

4、onal test (Freq trim, PIO, AIO, voltage and current)122.3Station 3 Module RF Test (conducted test)132.4Station 4 Main Board PCBA Functional test (PIO,AIO, voltage an current)142.5Station 5 Main Board PCBA RF Test (conducted test)142.6Station 6 Main Board PCBA RF Test (coupling test )152.7Station 7 A

5、coustic test after casing162.8Station 8 Product RF Sensitivity Test163Product Specification Electrical Parameters checklist173.1Current test173.2Audio test173.3Acoustic test173.4Range test183.5Power management183.6Other18Product Test SpecificationKey words：Bluetooth Headset, PCBA, RF test, AcousticS

6、ummary：The test specification for Function, RF test, PCBA test and acoustic testReference List：Reference ListNameAuthorNoDatePositionPress1 Test ProcedureBefore start ATE, engineer should check and enter appropriate values in setting environment.Manual Settingsl Software version number, eg “20131213

7、”l Upper and lower limit for each test itemsl Started and stopped Bluetooth address rangel RF test probe and cable lost for calibration and compensationStation Requirementl In each station, ATE need to read, compare and display the software version number, which is stored in PS Key 0x02B6. It is a 1

8、6 bits, 4 digits BCD, eg “6AA5”l All test items should display on the screenl Each 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 is in ASCII format. Each test item placed in one column. File name

9、must include the station no, date and time for reference.1.1 Station 1 Module Download- Measure current consumption at 3.3V- Download and verify the software (include application and test mode, or test mode only)1.2 Station 2 Module functional test (Freq trim, PIO, AIO, voltage and current)Check cur

10、rent consumption- Feed 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 trim- Control the DUT to transmit a CW at Channel 39(2441 MHz), adjust the Crystal frequency trim value to

11、meet the target. Write the correct value into PS key 0x01F6 (e.g. 0x0026), then reset DUT and verify. Save the value in log fileCheck PIO and AlO- Input the PIO(0-10) pins 0101 0101 0101, read the logic from PIO and verify.- Repeat the above and invert the lo舒c (1010 1010 1010). read the logic from

12、PlO and verify.Save the result to log file- Input the AIO(O-I) pins at l.5V(don't >I.75V), read the level form AlO and verify. Save the readings to log fileCheck Audio path- Set DUT into PCM Loopback mode. Feed 1 kHz, 5mVrms to mic input and measure, the speaker output level. Save the speaker

13、 level to log file1.3 Station 3 Module RF Test (Conducted test)- Enable the DUT to enter Bluetooth Test Mode by using "RFCLI.EXE" command- Set the measuring condition of E1852B according the following setting.RF Test(Conducted)Transmitter testConditions:- Carrier: 0- Packet type: DHI- Pack

14、et length: 27- Poll period: 10- RF level: -50dBm- Data 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 Power- Freq. Offset- Freq. Drift- Freq. Drift/ Rate- Avg, Delta F2 max- Avg, Delta

15、F1 max- Packet Error Rate (PER)- Bit Error Rate (BER)Loopback TestConditions:- Whitening: Enable- RF level: -75dBm- Modulation index : 0.32- No. of bits: 10000Measure:- Bit Error Ratc (BER)- Packet Error Rate (PER)Repeat the above test for Carrier 39, 781.4 Station 4 Main Board PCBA Functional test

16、(PIO AIO, voltage and current)Supply 3.7V 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 DON'T CARE- Only test pads for PlO (9).- The logic of PIO(6) is inverted. its test pads is "MFB&qu

17、ot;- Read and verify AIO(0). AIO(1) is Don't Care.For BT Radio:- TBDCheck Audio path Set the DUT to PCM loopback mode. Feed lkHz, 5mVrms to mic input and measure the level from the speaker output.Check current consumptionMeasure Off Current- Reset DUT, measure the input current at 3.7VMeasure St

18、andby Current- Enable DUT to Receive mode (RXSTARTI at 2442MHz).- McaSUrc the input current at 3.7VMeasure Operation Current- Enable DUT to transmit mode (TXSTART at 2442MHz).- Measure the input current at 3.7V.Measure Charging Current- Connect a Electronic Load to BAT+ to GND. Set the E-Ioad to dra

19、w constant current of 75mA. Feed 5V to DC+ to GND. Measure the current at 5V.1.5 Station 5 Main board PCBA RF test (conducted test)RF Test (conducted)Transmitter testConditions:- Carrier: 0- Packet type: DHI- Packet length: 27- Poll period: 10- RF level: -50dBm- Data for delta F2: BS55(10101010)- Da

20、ta for delta Fl: BSOF(00001111)- Meas. Averaging factor: 100 (may be less for fast respond)- Coupling loss: 0dBMeasure: - Average Power- Freq. Offset- Freq. Drift- Freq. Drift/ Rate- Avg, Delta F2 max- Avg, Delta F1 max- Packet Error Rate (PER)- Bit Error Rate (BER)Loopback TestConditions:- Whitenin

21、g: Enable- RF level: -75dBm- Modulation index : 0.32- No. of bits: 10000Measure:- Bit Error Ratc (BER)- Packet Error Rate (PER)Repeat the above test for Carrier 39, 781.6 Station 6 Main board PCBA RF test(Coupling test)- Test items may be decreased in the future. RF Test couplingFixture and DUT must

22、 be in Shield Box.Transmitter testConditions:- Carrier: 0- Packet type: DHI- Packet length: 27- Poll period: 10- RF level: -50dBm- Data 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 Po

23、wer- Freq. Offset- Freq. Drift- Freq. Drift/ Rate- Avg, Delta F2 max- Avg, Delta F1 max- Packet Error Rate (PER)- Bit Error Rate (BER)Loopback TestConditions:- Whitening: Enable- RF level: -75dBm- Modulation index : 0.32- No. of bits: 10000Measure:- Bit Error Rate (BER)- Packet Error Rate (PER)Repea

24、t the above test for Carrier 39, 78Write PS Key to flash memory- After all tested items are PASS:- Write a unique 48 bits Bluetooth address into PS Key Ox0001.- Write Ox000 to PS Key OxOIF9 (Set Host Interface to No Host)- Write Ox000 to PS Key Ox025D (Enable VM)1.7 Station 7 Acoustic test after cas

25、ing1. Setting the Battery voltage t0 4.10V-4.24V, adjust the Charger voltage Trim value to meet the target. Write the correct value into PS Key 0x03b7 , then reset DUT and verify.Save the value in log fileSetting charging voltage to 5V,2. The voltage of VBAT pin must be within 3.8-4.6V without batte

26、ry.Acoustic Test- Testing must be in shield room and silent room.- After casing assembly, use Casira for Audio Gateway. Pairing the BT headset and carry out acoustic test. Measure TX and RX loudness and1.8 Station 8 Product RF Sensitivity TestProduct RF sensitivity<=-70dBmTesting requirement: N40

27、10, Shield box and computer with SPITesting method:1) Press MFB and then plug charger, then release MFB, then press2) LED will flash purple.3) Put the DUT on the test jig inside the shield box. Close the shield box.4) Setup for N4010The setting of the tester should be hopping ONi. Mode -> Loss Co

28、mp -> Apply Loss Compensation ”V” ->Fix Loss to desired “DB” (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. Config-> EUT-> Inquiry Procedure->while BT address is sh

29、own on the Screen-> Select and Return BDAii. Test -> Active to "3" -> Select “Single Slot Sensitivity"iii. Edit -> Test Mode /Pkt /Pwr->Type = HV3; Set Transmit Power t0 70 “5) To see the result:Results -> Select "Single Slot Sensitivity" -> Detailed Res

30、ults If BER <=0.1Record the Transmit Power. This is the sensitivity.If BER > 0.1Increase the Transmit Power in 4)-iv until BER <= 0.1.Other TestChargersAll chargers must be full checked. Measure output voltage and current for different input voltage.Input 100Vrms (AC) and connect a load (25

31、0hm > 2W resistor) at the output, output should be 5V and 200mA.Input 240Vrms (AC) and connect a load (250hm > 2W resistor) at the output, output should be 5V and 200mA.Rechargeable BatteriesAll the Lithium-ion Polymer (LIP) rechargeable battery must be full checked before production. All batt

32、eries 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 at least 2 hours2 Specification2.1 Station I Module DownloadDownload and verification: Should be PASSED2.2 Station 2 Module functional test (Freq trim, PI

33、O, AIO, voltage and current)Module turn on current: 1mA - 3mA (For ATE Setup: 0.2mA - 4.5mA)Module output voltage: 1.75V - 1.85VTrimmed freq. : 2441MHz +/-3 kHzTrimmed value: 0 - 63PIO(0-10): PassAIO(0): 0.9V 1.1VAudio output level: 0.1Vrms - 0.5Vrms(Mic input 1 kHz 5mVrms)2.3 Station 3 Module RF Te

34、st (conducted test)RF and 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 Rate (PER)050%

35、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 Fl max140175kHzDeltaF2/DeltaF0.751-Packet Error Rate (PER)050%Bit Error Rate (BER)0

36、0.1%Carrier 78ItemsDescriptionsLower limitUpper limitUnitsAverage Power-64dBmPeak Power-64dBmFreq. Offset-7575kHzFreq. Drift-2525kHzFreq.Drift Rate-2020kHz/50usAvg, Delta F2max115175kHzAvg, Delta Fl max140175kHzDeltaF2/DeltaF0.751-Packet Error Rate (PER)050%Bit Error Rate (BER)00.1%2.4 Station 4 Mai

37、n Board PCBA Functional test (PIO,AIO, voltage an current)PI0(0,1,2.3,6,9),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一 3mA)Standby Current: 1.0mA - 5mAFast charging Current:

38、 9 mA - 110 mAFull charging Current: 5mA-9mA2.5 Station 5 Main Board PCBA RF Test (conducted test)RF and audio test (conducted )Carrier 0ItemsDescriptionsLower limitUpper limitUnitsAverage Power-84dBmPeak Power-84dBmFreq. Offset-7575kHzFreq. Drift-2525kHzFreq.Drift Rate-2020kHz/50usAvg, Delta F2max1

39、15175kHzAvg, Delta Fl max140175kHzDeltaF2/DeltaF0.751.5-Packet Error Rate (PER)050%Bit Error Rate (BER)00.1%Carrier 39 ItemsDescriptionsLower limitUpper limitUnitsAverage Power-84dBmPeak Power-84dBmFreq. Offset-7575kHzFreq. Drift-2525kHzFreq.Drift Rate-2020kHz/50usAvg, Delta F2max115175kHzAvg, Delta

40、 Fl max140175kHzDeltaF2/DeltaF0.751.5-Packet Error Rate (PER)050%Bit Error Rate (BER)00.1%Carrier 78ItemsDescriptionsLower limitUpper limitUnitsAverage Power-84dBmPeak Power-84dBmFreq. Offset-7575kHzFreq. Drift-2525kHzFreq.Drift Rate-2020kHz/50usAvg, Delta F2max115175kHzAvg, Delta Fl max140175kHzDel

41、taF2/DeltaF0.751.5-Packet Error Rate (PER)050%Bit Error Rate (BER)00.1%2.6 Station 6 Main Board PCBA RF Test (coupling test )RF test (coupling)Carrier 0ItemsDescriptionsLower limitUpper limitUnitsAverage Power-64dBmPeak Power-64dBmFreq. Offset-7575kHzFreq. Drift-2525kHzFreq.Drift Rate-2020kHz/50usAv

42、g, Delta F2max115175kHzAvg, Delta Fl max140175kHzDeltaF2/DeltaF0.751.5-Packet Error Rate (PER)050%Bit Error Rate (BER)00.1%Carrier 39ItemsDescriptionsLower limitUpper limitUnitsAverage Power-64dBmPeak Power-64dBmFreq. Offset-7575kHzFreq. Drift-2525kHzFreq.Drift Rate-2020kHz/50usAvg, Delta F2max11517

43、5kHzAvg, Delta Fl max140175kHzDeltaF2/DeltaF0.751.5-Packet Error Rate (PER)050%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 m

44、ax140175kHzDeltaF2/DeltaF0.751.5-Packet Error Rate (PER)050%Bit Error Rate (BER)00.1%2.7 Station 7 Acoustic test after casingAcoustic TestItemsDescriptionsLower limitUpper limitUnitsMicrophone TX at l kHz-49-41dBEarphone Assemble at l kHz104119dBFinal unit RX at l kHz109119dBBuzzer sound leave at 1

45、kHz75100dB(At 10 cm) Microphone frequency respond mask:Freq /Hz 20030039860090010001336200035004005000Upper limit+5 +6+6.8+7+4.8+4+2.5+2.3-5.0-10.5Lower limit-6.2-5.1-4.4-4.4-4.3-4.7-8.3-11.5-14.5-18.5-21Complete Ear piece frequency respond mask:Freq /Hz2003003986009001k2k3k4k5kUpper limit +5+7.58.8

46、+9.8+6+5.3-3.5-10.5-14.8-22Lower limit-5.3-3-1.9-1-5.4-6.5-16-23-25(3447Hz)-2.8 Station 8 Product RF Sensitivity TestFor the sensitivity > -70dBm is considered to be Failed.Charger test 1. When input 100 Vrms(AC): Output voltage: 5V+/-0.25V Output current: 200mA +/- 10mA 2. When input 240 Vrms(AC): Output voltage: 5V +/-0.25V Output current: 200mA +/-10mA3 Product Specification Electrical Parameters checklist3.1 Current testNo