蓝牙耳机生产测试方法与标准

Product Test Specification for Bluetooth Headset（for internal use only）Change HistoryContents Tables1 Test Procedure (6)1.1 Station 1 Module Download (6)1.2 Station 2 Module functional test (Freq trim, PIO, AIO, voltage and current) (6)1.3 Station 3 Module RF Test (Conducted test) (7)1.4 Station 4 Main Board PCBA functional test(PIO AIO, voltage and current) (8)1.5 Station 5 Main board PCBA RF test(conducted test) (9)1.6 Station 6 Main board PCBA RF test(Coupling test) (10)1.7 Station 7 Acoustic test after casing (11)1.8 Station 8 Product RF Sensitivity Test (11)2 Specification (12)2.1 Station I Module Download (12)2.2 Station 2 Module functional test (Freq trim, PIO, AIO, voltage and current) (12)2.3 Station 3 Module RF Test (conducted test) (13)2.4 Station 4 Main Board PCBA Functional test (PIO,AIO, voltage an current) (15)2.5 Station 5 Main Board PCBA RF Test (conducted test) (15)2.6 Station 6 Main Board PCBA RF Test (coupling test ) (17)2.7 Station 7 Acoustic test after casing (19)2.8 Station 8 Product RF Sensitivity Test (20)3 Product Specification Electrical Parameters checklist (20)3.1 Current test (20)3.2 Audio test (20)3.3 Acoustic test (21)3.4 Range test (21)3.5 Power management (21)3.6 Other (21)Product Test SpecificationKey words：Bluetooth Headset, PCBA, RF test, AcousticSummary：The test specification for Function, RF test, PCBA test and acoustic test Reference List：1Test ProcedureBefore start ATE, engineer should check and enter appropriate values in setting environment. Manual Settings●Software version number, eg “20131213”●Upper and lower limit for each test items●Started and stopped Bluetooth address range●RF test probe and cable lost for calibration and compensationStation Requirement●In each station, ATE need to read, compare and display the software version number, whichis stored in PS Key 0x02B6. It is a 16 bits, 4 digits BCD, eg “6AA5”●All test items should display on the screen●Each production day have a log file for each station. Each log file includes all samples serialno 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.1.1Station 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 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 file]Frequency 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 file]Check 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(don't >I.75V), read the level form AlO and verify. [Save the readings to log file]Check 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 file]1.3Station 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 T estConditions:-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+ 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"-Read and verify AIO(0). AIO(1) is Don't Care.For BT Radio:-TBDCheck 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 3.7VMeasure 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.1.5Station 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 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 T estConditions:-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, 781.6Station 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 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 T estConditions:-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)1.7Station 7 Acoustic test after casing1.Setting the Battery voltage t0 4.10V--4.24V, adjust the Charger voltage Trim value to meetthe target. Write the correct value into PS Key 0x03b7 , then reset DUT and verify.[Save the value in log file]Setting charging voltage to 5V,2.The voltage of VBAT pin must be within3.8--4.6V without battery.Acoustic T est-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 and1.8Station 8 Product RF Sensitivity TestProduct RF sensitivity<=-70dBmTesting requirement: N4010, 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 Comp -> Apply Loss Compensation ”V” ->Fix Loss to desired “DB”(R&D will provide one reference sample for calibration. If not provided, please useB304 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 Sensitivit y"iii.Edit -> Test Mode /Pkt /Pwr->Type = HV3; Set Transmit Power t0 70 “5)To see the result:Results -> Select "Single Slot Sensitivity" -> Detailed ResultsIf 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 (250hm > 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 hours2Specification2.1Station I Module DownloadDownload and verification: Should be PASSED2.2Station 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)2.3Station 3 Module RF Test (conducted test)RF and audio test(conducted)Carrier 0Items Descriptions Lower limit Upper limit Units Average Power-6 4 DBmPeak Power-6 4 DBmFreq. Offset-75 75 kHzFreq. Drift-25 25 kHzFreq.Drift Rate-20 20 kHz/50usAvg, Delta F2max115 175 kHzAvg, Delta Fl max140 175 kHzDeltaF2/DeltaF 0.75 1 -0 50 %Packet Error Rate(PER)Bit Error Rate (BER) 0 0.1 % Carrier 39Items Descriptions Lower limit Upper limit Units Average Power-6 4 dBmPeak Power-6 4 dBmFreq. Offset-75 75 kHzFreq. Drift-25 25 kHzFreq.Drift Rate-20 20 kHz/50usAvg, Delta F2max115 175 kHzAvg, Delta Fl max140 175 kHzDeltaF2/DeltaF 0.75 1 -0 50 %Packet Error Rate(PER)Bit Error Rate (BER) 0 0.1 %Carrier 78Items Descriptions Lower limit Upper limit Units Average Power-6 4 dBmPeak Power-6 4 dBmFreq. Offset-75 75 kHzFreq. Drift-25 25 kHzFreq.Drift Rate-20 20 kHz/50usAvg, Delta F2max115 175 kHzAvg, Delta Fl max140 175 kHzDeltaF2/DeltaF 0.75 1 -Packet Error Rate0 50 %(PER)Bit Error Rate (BER) 0 0.1 %2.4Station 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-9mA2.5Station 5 Main Board PCBA RF Test (conducted test)RF and audio test (conducted )Carrier 0Items Descriptions Lower limit Upper limit UnitsAverage Power-8 4 dBmPeak Power-8 4 dBmFreq. Offset-75 75 kHzFreq. Drift-25 25 kHzFreq.Drift Rate-20 20 kHz/50usAvg, Delta F2max115 175 kHzAvg, Delta Fl max140 175 kHzDeltaF2/DeltaF 0.75 1.5 -Packet Error Rate 0 50 %(PER)Bit Error Rate (BER) 0 0.1 % Carrier 39Items Descriptions Lower limit Upper limit Units Average Power-8 4 dBmPeak Power-8 4 dBmFreq. Offset-75 75 kHzFreq. Drift-25 25 kHzFreq.Drift Rate-20 20 kHz/50usAvg, Delta F2max115 175 kHzAvg, Delta Fl max140 175 kHzDeltaF2/DeltaF 0.75 1.5 -Packet Error Rate0 50 %(PER)Bit Error Rate (BER) 0 0.1 % Carrier 78Items Descriptions Lower limit Upper limit Units Average Power-8 4 dBmPeak Power-8 4 dBmFreq. Offset-75 75 kHzFreq. Drift-25 25 kHzFreq.Drift Rate-20 20 kHz/50usAvg, Delta F2max115 175 kHzAvg, Delta Fl max140 175 kHzDeltaF2/DeltaF 0.75 1.5 -0 50 %Packet Error Rate(PER)Bit Error Rate (BER) 0 0.1 %2.6Station 6 Main Board PCBA RF Test (coupling test )RF test (coupling)Carrier 0Items Descriptions Lower limit Upper limit Units Average Power-6 4 dBmPeak Power-6 4 dBmFreq. Offset-75 75 kHzFreq. Drift-25 25 kHzFreq.Drift Rate-20 20 kHz/50usAvg, Delta F2max115 175 kHzAvg, Delta Fl max140 175 kHzDeltaF2/DeltaF 0.75 1.5 -Packet Error Rate0 50 %(PER)Bit Error Rate (BER) 0 0.1 %Carrier 39Items Descriptions Lower limit Upper limit Units Average Power-6 4 dBmPeak Power-6 4 dBmFreq. Offset-75 75 kHzFreq. Drift-25 25 kHzFreq.Drift Rate-20 20 kHz/50usAvg, Delta F2max115 175 kHzAvg, Delta Fl max140 175 kHzDeltaF2/DeltaF 0.75 1.5 -0 50 %Packet Error Rate(PER)Bit Error Rate (BER) 0 0.1 % Carrier 78Items Descriptions Lower limit Upper limit Units Average Power-6 4 dBmPeak Power-6 4 dBmFreq. Offset-75 75 kHzFreq. Drift-25 25 kHzFreq.Drift Rate-20 20 kHz/50usAvg, Delta F2max115 175 kHzAvg, Delta Fl max140 175 kHzDeltaF2/DeltaF 0.75 1.5 -0 50 %Packet Error Rate(PER)Bit Error Rate (BER) 0 0.1 %2.7Station 7 Acoustic test after casingAcoustic TestItems Descriptions Lower limit Upper limit Units Microphone TX at l kHz -49 -41 dBEarphone Assemble at l kHz 104 119 dBFinal unit RX at l kHz 109 119 dBBuzzer sound leave at 1 kHz 75 100 dB(At 10 cm) Microphone frequency respond mask:2.8Station 8 Product RF Sensitivity TestFor the sensitivity > -70dBm is considered to be Failed.Charger test1. When input 100 Vrms(AC):Output voltage: 5V+/-0.25VOutput current: 200mA +/- 10mA2. When input 240 Vrms(AC):Output voltage: 5V +/-0.25VOutput current: 200mA +/-10mA3Product Specification Electrical Parameters checklist 3.1Current test3.2Audio test下载可编辑3.3Acoustic test3.4Range test3.5Power management3.6OtherThe voltage of VBAT pin must be within 3 8-4.6V without Battery. .专业.整理.。