蓝牙耳机生产测试方法及标准

Product nameConfidentiality levelBluetooth HeadsetOpenProduct versionTotal 18 pagesDraftProduct Test Specification for Bluetooth HeadsetPrepared by LishuzhengDate2013-12-13Reviewed by DateApproved byDateAuthorized byDate（ for internal use only）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 functional 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 functional 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 Acoustic 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, AcousticSummary：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”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 16 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 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 current 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 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 PlO and verify.Save the result to log file- Input 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 path- Set DUT into PCM Loopback mode. Feed 1 kHz, 5mVrms to mic input and measure, the speaker output level. Save the speaker 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- 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 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:- 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 (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 DONT CARE- Only test pads for PlO (9).- The logic of PIO(6) is inverted. its test pads is MFB- Read and verify AIO(0). AIO(1) is Dont 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 Standby 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 draw 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)- 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 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, 781.6 Station 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: 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 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:- Whitening: Enable- RF level: -75dBm- Modulation index : 0.32- No. of bits: 10000Measure:- Bit Error Rate (BER)- Packet Error Rate (PER)Repeat 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 casing1. 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 battery.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 Loss Comp - 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 shown on the Screen- Select and Return BDAii. Test - Active to 3 - Select “Single Slot Sensitivityiii. Edit - Test Mode /Pkt /Pwr-Type = HV3; Set Transmit Power t0 70 “5) To see the result:Results - Select Single Slot Sensitivity - Detailed Results If BER 0.1Increase the Transmit Power in 4)-iv until BER 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 batteries 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, PIO, 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 Test (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%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)00.1%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 Main 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: 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 F2max115175kHzAvg, 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 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 max140175kHzDeltaF2/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/50usAvg, 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 F2max115175kHzAvg, 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 max140175kHzDeltaF2/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 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+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 testNoTest itemSpecificationTest conditionVolume SettingUnitRemarkMinTYPMa