蓝牙耳机生产测试方法及标准_计算机-手机开发

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1、 Product name Confidentiality level Bluetooth Headset Open Product version Total 16 pages Draft Product Test Specification for Bluetooth Headset Prepared by Lishuzheng Date 2013-12-13 Reviewed by Date Approved by Date Authorized by Date ( for internal use only) . Word 资料 Change History Date Ver. Des

2、cription Author 2013/12/13 Draft Initial version Lishuzheng . Word 资料 Contents Tables 1 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

3、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 M

4、odule 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) . 14 2.5 Station 5 Main Board PCBA RF Test (conducted test) . 14 2.6

5、 Station 6 Main Board PCBA RF Test (coupling test ) . 15 2.7 Station 7 Acoustic test after casing . 16 2.8 Station 8 Product RF Sensitivity Test . 16 3 Product Specification Electrical Parameters checklist . 17 3.1 Current test . 17 3.2 Audio test . 17 3.3 Acoustic test . 17 3.4 Range test . 18 3.5

6、Power management . 18 3.6 Other . 18 . Word 资料 Product Test Specification Key words:Bluetooth Headset, PCBA, RF test, Acoustic Summary:The test specification for Function, RF test, PCBA test and acoustic test Reference List: Reference List Name Author No Date Position Press . Word 资料 1 Test Procedur

7、e Before 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 compensation S

8、tation Requirement 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 ” All test items should display on the screen Each production day have a log file for each station. Each log file includes

9、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 sof

10、tware (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 t

11、he 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

12、- 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

13、 to log file . Word 资料 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 1.3 Station 3 Module RF Test (Conducted test) - Enable the DUT to enter Bluetooth Test Mode by using RFCLI.EXE command -

14、 Set the measuring condition of E1852B according the following setting. RF Test(Conducted) Transmitter test Conditions: - 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 f

15、actor: 100 (may be less for fast respond) - Coupling loss: 0dB Measure: - 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 Test Conditions: - Whitening: Enable - RF level: -75dBm - Modulat

16、ion index : 0.32 - No. of bits: 10000 Measure: - Bit Error Ratc (BER) - Packet Error Rate (PER) Repeat the above test for Carrier 39, 78 1.4 Station 4 Main Board PCBA Functional test (PIO AIO, voltage and current) Supply 3.7V to the BAT+ to GND . Word 资料 Check PlO and AIO Input different logic to PI

17、O(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: - TBD Check Audio path Set the DUT to PCM loopback m

18、ode. Feed lkHz, 5mVrms to mic input and measure the level from the speaker output. Check current consumption Measure Off Current - Reset DUT, measure the input current at 3.7V Measure Standby Current - Enable DUT to Receive mode (RXSTARTI at 2442MHz). - McaSUrc the input current at 3.7V Measure Oper

19、ation 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

20、 RF test (conducted test) RF Test (conducted) Transmitter test Conditions: - 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) - C

21、oupling loss: 0dB Measure: - Average Power - Freq. Offset - Freq. Drift . Word 资料 - Freq. Drift/ Rate - Avg, Delta F2 max - Avg, Delta F1 max - Packet Error Rate (PER) - Bit Error Rate (BER) Loopback Test Conditions: - Whitening: Enable - RF level: -75dBm - Modulation index : 0.32 - No. of bits: 100

22、00 Measure: - Bit Error Ratc (BER) - Packet Error Rate (PER) Repeat the above test for Carrier 39, 78 1.6 Station 6 Main board PCBA RF test(Coupling test) - Test items may be decreased in the future. RF Test coupling Fixture and DUT must be in Shield Box. Transmitter test Conditions: - Carrier: 0 -

23、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: 0dB Measure: - Average Power - Freq. Offset - Freq. Drift - Freq. Drift/ Rat

24、e - Avg, Delta F2 max - Avg, Delta F1 max - Packet Error Rate (PER) - Bit Error Rate (BER) Loopback Test Conditions: - Whitening: Enable - RF level: -75dBm . Word 资料 - Modulation index : 0.32 - No. of bits: 10000 Measure: - Bit Error Rate (BER) - Packet Error Rate (PER) Repeat the above test for Car

25、rier 39, 78 Write 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 casing 1. Setting the

26、 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 file Setting charging voltage to 5V, 2. The voltage of VBAT pin must be within 3.8-4.6V without battery. Acoustic Te

27、st - 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 and 1.8 Station 8 Product RF Sensitivity Test Product RF sensitivity Loss Comp - Apply Loss Compensation ”V” -Fix

28、 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 BDA ii. Test - Active to

29、 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 Results If BER 0.1 Increase the Transmit Power in 4)-iv until BER 2W resistor) at the output, output should be 5V and

30、200mA. Input 240Vrms (AC) and connect a load (250hm 2W resistor) at the output, output should be 5V and 200mA. Rechargeable Batteries All 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.

31、 Measure the discharging time until voltage is dropped to 3V. The discharging time at least 2 hours 2 Specification 2.1 Station I Module Download Download and verification: Should be PASSED 2.2 Station 2 Module functional test (Freq trim, PIO, AIO, voltage and current) Module turn on current: 1mA -

32、3mA (For ATE Setup: 0.2mA - 4.5mA) Module output voltage: 1.75V - 1.85V Trimmed freq. : 2441MHz +/-3 kHz Trimmed value: 0 - 63 PIO(0-10): Pass AIO(0): 0.9V 1.1V Audio 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) C

33、arrier 0 Items Descriptions Lower limit Upper limit Units Average Power -6 4 DBm Peak Power -6 4 DBm . Word 资料 Freq. Offset -75 75 kHz Freq. Drift -25 25 kHz Freq.Drift Rate -20 20 kHz/50us Avg, Delta F2max 115 175 kHz Avg, Delta Fl max 140 175 kHz DeltaF2/DeltaF 0.75 1 - Packet Error Rate (PER) 0 5

34、0 % Bit Error Rate (BER) 0 0.1 % Carrier 39 Items Descriptions Lower limit Upper limit Units Average Power -6 4 dBm Peak Power -6 4 dBm Freq. Offset -75 75 kHz Freq. Drift -25 25 kHz Freq.Drift Rate -20 20 kHz/50us Avg, Delta F2max 115 175 kHz Avg, Delta Fl max 140 175 kHz DeltaF2/DeltaF 0.75 1 - Pa

35、cket Error Rate (PER) 0 50 % Bit Error Rate (BER) 0 0.1 % Carrier 78 Items Descriptions Lower limit Upper limit Units Average Power -6 4 dBm Peak Power -6 4 dBm Freq. Offset -75 75 kHz Freq. Drift -25 25 kHz Freq.Drift Rate -20 20 kHz/50us Avg, Delta F2max 115 175 kHz Avg, Delta Fl max 140 175 kHz D

36、eltaF2/DeltaF 0.75 1 - Packet Error Rate (PER) 0 50 % Bit Error Rate (BER) 0 0.1 % 2.4 Station 4 Main Board PCBA Functional test (PIO,AIO, voltage an current) PI0(0,1,2.3,6,9),LED(0,1): Pass AIO(0): 1.48V -1.7 V Speaker Level: 0.2V - 0.5 V . Word 资料 (Mic input I kHz 5mVnns) Operation Current: 10mA -

37、 22 mA Off Mode Current: 0.1mA - 0.4 mA (For ATE Setup:0.1mA一 3mA) Standby Current: 1.0mA - 5mA Fast charging Current: 9 mA - 110 mA Full charging Current: 5mA-9mA 2.5 Station 5 Main Board PCBA RF Test (conducted test) RF and audio test (conducted ) Carrier 0 Items Descriptions Lower limit Upper lim

38、it Units Average Power -8 4 dBm Peak Power -8 4 dBm Freq. Offset -75 75 kHz Freq. Drift -25 25 kHz Freq.Drift Rate -20 20 kHz/50us Avg, Delta F2max 115 175 kHz Avg, Delta Fl max 140 175 kHz DeltaF2/DeltaF 0.75 1.5 - Packet Error Rate (PER) 0 50 % Bit Error Rate (BER) 0 0.1 % Carrier 39 Items Descrip

39、tions Lower limit Upper limit Units Average Power -8 4 dBm Peak Power -8 4 dBm Freq. Offset -75 75 kHz Freq. Drift -25 25 kHz Freq.Drift Rate -20 20 kHz/50us Avg, Delta F2max 115 175 kHz Avg, Delta Fl max 140 175 kHz DeltaF2/DeltaF 0.75 1.5 - Packet Error Rate (PER) 0 50 % Bit Error Rate (BER) 0 0.1

40、 % Carrier 78 Items Descriptions Lower limit Upper limit Units Average Power -8 4 dBm Peak Power -8 4 dBm Freq. Offset -75 75 kHz Freq. Drift -25 25 kHz . Word 资料 Freq.Drift Rate -20 20 kHz/50us Avg, Delta F2max 115 175 kHz Avg, Delta Fl max 140 175 kHz DeltaF2/DeltaF 0.75 1.5 - Packet Error Rate (P

41、ER) 0 50 % Bit Error Rate (BER) 0 0.1 % 2.6 Station 6 Main Board PCBA RF Test (coupling test ) RF test (coupling) Carrier 0 Items Descriptions Lower limit Upper limit Units Average Power -6 4 dBm Peak Power -6 4 dBm Freq. Offset -75 75 kHz Freq. Drift -25 25 kHz Freq.Drift Rate -20 20 kHz/50us Avg,

42、Delta F2max 115 175 kHz Avg, Delta Fl max 140 175 kHz DeltaF2/DeltaF 0.75 1.5 - Packet Error Rate (PER) 0 50 % Bit Error Rate (BER) 0 0.1 % Carrier 39 Items Descriptions Lower limit Upper limit Units Average Power -6 4 dBm Peak Power -6 4 dBm Freq. Offset -75 75 kHz Freq. Drift -25 25 kHz Freq.Drift

43、 Rate -20 20 kHz/50us Avg, Delta F2max 115 175 kHz Avg, Delta Fl max 140 175 kHz DeltaF2/DeltaF 0.75 1.5 - Packet Error Rate (PER) 0 50 % Bit Error Rate (BER) 0 0.1 % Carrier 78 Items Descriptions Lower limit Upper limit Units Average Power -6 4 dBm Peak Power -6 4 dBm Freq. Offset -75 75 kHz . Word

44、 资料 Freq. Drift -25 25 kHz Freq.Drift Rate -20 20 kHz/50us Avg, Delta F2max 115 175 kHz Avg, Delta Fl max 140 175 kHz DeltaF2/DeltaF 0.75 1.5 - Packet Error Rate (PER) 0 50 % Bit Error Rate (BER) 0 0.1 % 2.7 Station 7 Acoustic test after casing Acoustic Test Items Descriptions Lower limit Upper limi

45、t Units Microphone TX at l kHz -49 -41 dB Earphone Assemble at l kHz 104 119 dB Final unit RX at l kHz 109 119 dB Buzzer sound leave at 1 kHz 75 100 dB(At 10 cm) Microphone frequency respond mask: Complete Ear piece frequency respond mask: Freq /Hz 200 300 398 600 900 1k 2k 3k 4k 5k Upper limit +5 +

46、7.5 8.8 +9.8 +6 +5.3 -3.5 -10.5 -14.8 -22 Lower limit -5.3 -3 -1.9 -1 -5.4 -6.5 -16 -23 -25 (3447Hz) - 2.8 Station 8 Product RF Sensitivity Test For 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

47、. When input 240 Vrms(AC): Output voltage: 5V +/-0.25V Freq /Hz 200 300 398 600 900 1000 1336 2000 3500 400 5000 Upper limit +5 +6 +6.8 +7 +4.8 +4 +2.5 +2.3 -5.0 - -10.5 Lower limit -6.2 -5.1 -4.4 -4.4 -4.3 -4.7 -8.3 -11.5 -14.5 -18.5 -21 . Word 资料 Output current: 200mA +/-10mA 3 Product Specificati

48、on Electrical Parameters checklist 3.1 Current test No Test item Specification Test condition Volume Setting Unit Remark Min TYP Max 1 Standby Current 1.0-3.5mA Battery voltage:3.7V N/A N/A mA 2 Operation Current 10-16mA Battery voltage:3.7V mA 3 Turn off Current 0.1-0.5mA Battery voltage:3.7V N/A N

49、/A mA 4 Fast charge current 70-135mA(Red LED on) Battery voltage:3.7V mA 5 Full charge current 3-10mA(Blue LED on) Battery voltage:3.7V mA 3.2 Audio test No Test item Specification Test condition Volume Setting Unit Remark Min Max L R L R 1 Output level / Dongle input level:-15dBV N/A N/A dBV 2 Dist

50、ortion / Dongle input level:-15dBV N/A N/A dBV 3 Signal to noise ratio / Dongle input level:-15dBV N/A N/A dBV 4 Channel separation / Dongle input level:-15dBV dBV 5 Audio noise level / BT dongle no audio level input dBV 6 L/R Unbalance / Dongle input level:-18dBV dBV 7 L/R S/N unbalance / Dongle in

51、put level:-18dBV dBV 3.3 Acoustic test No Test item Specification Test condition Volume Setting Unit Remark Min L R . Word 资料 1 Mic level test -41-49dB At 1KHZ dBV 2 Speaker level test 109-119dB At 1KHZ dBV 3 Buzzer sound lever 75-100dBA At 10Cm dBV 3.4 Range test No Test item Specification Test con

52、dition Range test result Unit Remark Front side Back side 1 Headset with phones Back side5m,front side10m Nokia phone meter 2 Headset with dongle Back side5m,front side10m meter 3.5 Power management No Test item Specification Test condition Test result Unit Remark MIN MAX 1 Chip set cut off 4.2+/-0.025 Over charging V 3.1+/-0.025 Over discharging V 2 Battery PCM cut off 4.28+/-0.051 Over charging V 3.0+/-0.051 Over discharging V 3.6 Other The voltage of VBAT pin must be within 3 8-4.6V without Battery.

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