BCM9750ULF-47-J50 LF - BESTAR ELECTRONICS

1.Characteristics

2.Drawing

3.Measurement Circuit

4.Reliability Test

5.Packing

6.History change record

Customer

Product No.Customer P/N

Model Name

Issue Date

Issue No. BS/TEM01.450A

2014.10.07

195149

Date

Page 01 of 07

Checked by

Drawn by Customer approved

Approved by

BESTAR HOLDING CO.,LTD

No.199 HuangHe West Road.New district,ChangZhou,JiangSu Province,P.R.China

Tel: +86 519 88222567 Fax: +86 519 88222551

www.bestargroups.com info@be-star.com http://www.bestargroups.com

Approval:

SPECIFICATION

06TOTAL PAGE RoHS

FOR ELECTRO-MAGNET DYNAMIC MICROPHONE

www.bestargroups.com

BCM9750ULF-47-J50 LF

7 Oct.2014

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Rev. Drawn

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www.bestargroups.com wu@be-star.com

Approved by:

Note

Checked by:

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This print and information there in are proprietary to Bestar H olding Co., Ltd.

and shall not be used in whole or in part without its written content

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No. Item Specifications

1 Sensitivity -47±3dB(0dB=1V/Pa,1kHz)

2 Frequency Response 100Hz-10kHz

3 Current Consumption 0.5mA Max.

4 Directional umnidirectional

5 S/N Ratio more than 58dB

6 Standard Operating Voltage 2V

7 Operating Voltage 1V~10V

8 Sensitivity reduction within -3dB at 1.5V

9 Distortion 2%

10 Storage Temperature -40°C to +70°C

11 Operating Temperature -30°C to +60°C

1. Characteristics

Test Condition (Vs=2V RL=2.2KΩ Ta=20℃ R.H.=65%)

★Frequency Resonse Curve

2014.10.07

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BCM9750ULF-47-J50 LF

Microphone

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Date

王焕焕2014.10.07

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Frequency(Hz)

Relative Response (dB)

0°

180°

DRG NO:BS/TEM01.450A

BCM9750ULF-47-J50 LF

文件号：BS/QDTE045B

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Drawn by:

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and shall not be used in whole or in part without its written content

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2. Drawing

BCM9750ULF-47-J50 LF

★Angular Response

Microphone

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Terminal1 "+"

Terminal2 "-"

filter

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DRG NO:BS/TEM01.450A

Unit: mm

2014.10.07

Terminal1 "+"

Terminal2 "-"

Connector: JST

Housing: GHR-02V-S

Crimp pins: SSHL-002T-P0.2

Black

Red

线材：UL3302 30#

BCM9750ULF-47-J50 LF

pin 1 "-"

pin 2 "+"

www.bestargroups.com wu@be-star.com

文件号：BS/QDTE045B

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Date:

Checked by:

Drawn by:

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and shall not be used in whole or in part without its written content

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BCM9750ULF-47-J50 LF

Microphone

Shield Case

ECM unit

FET impedance

Converter

3. Measurement Circuit:

GND

Terminal 2

Output

Power Supply 2.0V

RL=2.2K

Terminal 1 C:1μF

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DRG NO:BS/TEM01.450A

2014.10.07 BCM9750ULF-47-J50 LF

www.bestargroups.com wu@be-star.com

文件号：BS/QDTE045B

CC

Drawn

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Rev. Date

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Approved by:

Checked by:

Note

Date:

Drawn by:

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This print and information there in are proprietary to Bestar H olding Co., Ltd.

and shall not be used in whole or in part without its written content

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4.1 High temp.life test

Temperature +70°C

Duration 100hrs

4.2 Low temp.life test

Temperature -40 °C

Duration 100hrs

4.3 Temperature cycle test

Cycles 10

4.4 Humidity Test

Temperature +40 °C

Relative Humidity 90~95%

Duration 48hrs

Tests above should be measured after leaving normal temperature for 6hrs.

4.5 Vibration Test

Vibration Frequency 10~55Hz

Amplitude 1.52mm/min

Direction 3(x.y&z)

Duration 2hrs each cycle(total 6 hrs)

4.6 Drop test

Height 1m

(Dropped to 20mm thick hardwood board without packing.)

Direction 3

4.7 Soldering Heat Shock .

Temperature 260 ±5°c

Duration 2 ±0.5 sec

4.8 Terminal Mechanical Strength

Strength 1kg

Duration 1 min

Notice:

All specifications must be satisfied in this condition.

Sensitivity :Allowable deviation within ±3dB from initial sensitivity.

BCM9750ULF-47-J50 LF

4.Reliability Test

Microphone

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DRG NO:BS/TEM01.450A

2014.10.07 BCM9750ULF-47-J50 LF

www.bestargroups.com wu@be-star.com

文件号：BS/QDTE045B

Microphone

E

This print and information there in are proprietary to Bestar H olding Co., Ltd.

and shall not be used in whole or in part without its written content

Drawn

2014.10.07 王焕焕

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Date

AChecked by:

Note Approved by:

Drawn by:

Date:

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5. Packing

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BCM9750ULF-47-J50 LF

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DRG NO: BS/TEM01.450A

2014.10.07 BCM9750ULF-47-J50 LF

Remark:

100 pcs per anti-static bag

5 anti-static bags per middle box

9 middle boxes per carton

Total 4500pcs per carton

Size: 363×233×207(mm)

207

363

233

500 PCS

5 anti-static bags per middle box

4500PCS

9 middle boxes per carton

100PCS

per anti-static bag

±

www.bestargroups.com wu@be-star.com

文件号：BS/QDTE045B

EE

This print and information there in are proprietary to Bestar H olding Co., Ltd.

and shall not be used in whole or in part without its written content

Microphone

王焕焕

Drawn

2014.10.07

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Rev. Date

Checked by:

Note Approved by:

Date:

Drawn by:

徐金国

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Before

6. History change record

F

version

No.

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Change Items

After Date Drawn

2

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Approved

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1

BCM9750ULF-47-J50 LF

王焕焕

徐波

DRG NO:BS/TEM01.450A

2014.10.07

2014.10.07 王焕焕

A徐金国

www.bestargroups.com wu@be-star.com

文件号：BS/QDTE045B