蓝牙耳机生产检验测试方法及规范标准

Product Test Specification for

Bluetooth Headset

(for internal use only )

Change History

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 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 ............................................................................................. 1.1

1.8 Station 8 Product RF Sensitivity Test (11)

2 Specification ........................................................................................................................................ 1..2.

2.1 Station I Module Download ......................................................................................................... 1.2

2.2 Station 2 Module functional test (Freq trim, PIO, AIO, voltage and current) (12)

2.3 Station 3 Module RF Test (conducted test) ................................................................................. 1. 3

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 ............................................................................................. 1.9

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 (21)

3.3 Acoustic test (21)

3.4 Range test

2..1.

3.5 Power management ................................................................................................................... 2..2 3.6 Other

2..2.

Product Test Specificati on Key words : Bluetooth Headset, PCBA, RF test, Acoustic

Summary : The test specification for Function, RF test, PCBA test and acoustic test Refere nee List :

1 Test Procedure

Before start ATE, engin eer should check and en ter appropriate values in

environment. Manual Sett in gs

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 calibrati on and compe nsati on Stati on Requireme nt

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 scree n

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 refere nee.

1.1 Station 1 Module Dow nl oad

- Measure curre nt con sumpti on at 3.3V

-

Download and verify the software (include application and test mode, mode only)

1.2 Station 2 Module functional test (Freq trim, PIO, AIO, voltage and current)

Check curre nt consumption

- Feed a 3.3V supply to the 3.3V in put. Measure the 3.3V in put curre nt and measure the voltage at 1.8V output from the module. [Save the curre nt and voltage to log file]

Freque ncy trim

-

Con trol the DUT to tran smit a CW at Cha nnel 39(2441 MHz), adjust the Crystal freque ncy trim value to meet the target. Write the correct value into PS key 0x01F6 sett ing

or test

Check PIO and AlO

- In put the PIO(0-10) pi ns 0101 0101 0101, read the logic from PIO and verify.

- Repeat the above and in vert the lo 舒 c (1010 1010 1010). read the logic from PlO and verify.[Save the result to log file]

- In put the AIO(O-I) pins at l.5V(d on't >I.75V), read the level form AlO and verify.

[Save the readi ngs to log file]

Check Audio path

- Set DUT into PCM Loopback mode. Feed 1 kH z, 5mVrms to mic in put and measure, the speaker output level. [Save the speaker level to log file]

1.3 Station 3 Module RF Test (Co nducted test)

- En able the DUT to en ter Bluetooth Test Mode by using "RFCLI.EXE" comma nd

- Set the measuri ng con diti on of E1852B accord ing the follow ing sett ing.

RF Test(C on ducted)

Tran smitter test

Con diti ons:

- Carrier: 0

- Packet type: DHI

- Packet len gth: 27

- Poll period: 10

- RF level: -50dBm

- Data for delta F2: BS55(10101010)

- Data for delta Fl: BSOF(00001111)

- Meas. Averagi ng factor: 100 (may be less for fast resp ond)

- Coupli ng 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