完整版蓝牙耳机生产测试方法及标准.docx

1、完整版蓝牙耳机生产测试方法及标准Product nameConfidentiality levelBluetooth HeadsetOpenProduct versionTotal 18 pagesDraftProduct Test Specification forBluetooth HeadsetPrepared byLishuzhengDate2013-12-13Reviewed byDateApproved byDateAuthorized byDatefor internal use only )Change HistoryDateVer.DescriptionAuthor2013/

2、12/13DraftInitial versionLishuzhengContents Tables1Test Procedure 61.1Station 1 Module Download 61.2Station 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

3、.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 casing 111.8Station 8 Product RF Sensitivity Test 112Specification 122.1Station I Module Download 122.2Station 2 Module functional test (Freq trim, PIO, AIO, vo

4、ltage 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 casing 162

5、.8Station 8 Product RF Sensitivity Test 163Product Specification Electrical Parameters checklist 173.1Current test 173.2Audio test 173.3Acoustic test 173.4Range test 183.5Power management 183.6Other 18Product Test SpecificationKey words ： Bluetooth Headset, PCBA, RF test, AcousticSummary ： The test

6、specification for Function, RF test, PCBA test and acoustic testReference List ：Reference ListNameAuthorNoDatePositionPress1Test ProcedureBefore start ATE, engineer should check and enter appropriate values in setting environment.Manual SettingsSoftware version number, eg “20131213 ”Upper and lower

7、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 the software version number, which is stored in PS Key 0x02B6. It is a 16 bits, 4 digits BCD, eg

8、“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 is in ASCII format. Each test item placed in one column. File name must include the station no,

9、 date and time for reference.1.1Station 1 Module Download- Measure current consumption at 3.3V- Download and verify the software (include application and test mode, or test mode only)1.2Station 2 Module functional test (Freq trim, PIO, AIO, voltage and current)Check current consumption- Feed a 3.3V

10、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 cor

11、rect 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 andverify.Save the result

12、 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 file1.3Station 3 Module R

13、F 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- Da

14、ta 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)

15、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, 781.4Station 4 Main Board PCBA Functional test (PIO AIO, voltage and current)Supply 3.7V to the BAT+

16、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:- TBDChec

17、k 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 Current- Reset DUT, measure the input current at 3.7V Measure Standby Current- Enable DUT to Receive mode (RXSTARTI at 2442MHz).- McaSUrc th

18、e input current at 3.7V Measure 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 5

19、V.1.5Station 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 fo

20、r 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: 10000Measu

21、re:- Bit Error Ratc (BER)- Packet Error Rate (PER)Repeat the above test for Carrier 39, 781.6Station 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 l

22、ength: 27 Poll period: 10 RF 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 max Packet Error Rate (

23、PER) Bit Error Rate (BER)Loopback TestConditions:Whitening: EnableRF level: -75dBmModulation index : 0.32No. of bits: 10000Measure:- Bit Error Rate (BER)- Packet Error Rate (PER)Repeat the above test for Carrier 39, 78 Write PS Key to flash memory- After all tested items are PASS:- Write a unique 48

24、 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)1.7Station 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

25、 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 Gatewa

26、y. Pairing the BT headset and carry out acoustic test. Measure TX and RX loudness and1.8Station 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 B3

27、04 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 Sensitiviyt iii.Edit - Test Mode /Pkt /Pwr-Type = HV3; Set Transmit Power t0 70 “5)T

28、o see the result:Results - Select Single Slot Sensitivity - Detailed ResultsIf BER 0.1 Increase 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.Recha

29、rgeable 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 hours2Specification2.1Station I Mo