Specification of Electret
Condenser Microphone
(RoHS Compliance&Halogen-Free)
Customer Name : Foster
Customer Model :
557570
GoerTek Model :
B4012AP422-003
GoerTek
DESIGN
Arthur Apr.17 2012
CHECK
Dave Apr.17 2012
STANDARD
Aimee Apr.17 2012
APPROVAL
Worden Apr.17 2012
10644
ISO/TS16949:2002
013
013
2551
2728
ISO14001:2004
ISO9001:2000
Version :1.0
CUSTOMER APPROVAL
Tel : + 86 536 8525155
Fax : + 86 536 8525000
E- Mail : goertek@goertek.com
Website: http://www.goertek.com
Address: No.268 Dongfang Road, High-Tech Industry
Development District, Weifang, Shandong, P.R.C.
have sound, will travel
page 1/10
Restricted
1 Security warning
1.1
1.2
The information contained in this document is the exclusive property of
GoerTek Inc. and should not be disclosed to any third party without the
written consent of GoerTek Inc.
This product and all of it's part are ROHS Compliance and observe halogen
free and Sb 2O3 free.
2 Publication history
Version
Modified
P/O No.
Date
Description
Design
Approval
1.0
/
2012.04.17
New Design
Arthur
Worden
have sound, will travel
page 2/10
Contents
1 Test Condition
4
2 Electrical Characteristics
4
3 Frequency Response Curve and Limits
4
4 Measurement Circuit
5
5 Test setup Drawing
5
6 Mechanical Characteristics
6
6.1 Appearance Drawing
6
6.2 Weight
6
7 Soldering
7.1 Jig for soldering
7
7
7.2 Cautions
7
8 Reliability Test
8
8.1 Vibration Test
8
8.2 Drop Test
8
8.3 High Temperature Test
8
8.4 Low Temperature Test
8
8.5 Humidity Test
8
8.6 Soldering Heat Shock
8
8.7 Temperature Shock Test
8
8.8 ESD Shock Test
8
9 Packing
9
9.1 Packing Specification
9
9.2 Packing Explain
10
10 Stock and Transportation
10
10.1 Stock
10
10.2 Transportation
10
10.3 Storage Temperature Range
10
10.4 Operating Temperature Range
10
11 Output Inspection standard
10
have sound, will travel
page 3/10
PRODUCT SPECIFICATIONS
Type :
Model:
Electret Condenser Microphone
B4012AP422-003
1 Test Condition (Vs=2.1V , R L=2.21kΩ, L=50cm)
Standard Conditions
(Re. IEC 60268-4)
Temperature
Environment Conditions
+15 ℃~+35℃
25 %RH~75%RH
86kPa ~106kPa
Judgement Conditions
+20℃±2 ℃
60 %RH ~70%RH
86kPa ~106kPa
Air pressure
Humidity
2 Electrical Characteristics
Symbol
Test Conditions
Min
Typ
Max
Unit
S
f=1kHz, Pin=1Pa
-44
-42
-40
dB
0dB=1V/Pa
Output Impedance
Zout
f=1kHz, Pin=1Pa
2.2k
Ω
Directivity
D(θ)
Omnidirectional
Item
Sensitivity
Current Consumption
I
S/N Ratio
S/N(A)
Decreasing Voltage
Characteristic
Operating Voltage
Range
S
dB
Vs=2.1V , RL=2.21kΩ
f=1kHz, Pin=1Pa
100
260
µA
58
A-Weighted Curve
dB
f=1kHz, Pin=1Pa
Vs=2.0-- 1.5V
Vs
1.1
Input SPL
3
dB
10
V
120
dB
3 Frequency Response Curve and Limits
Frequency Response
Relative Response (dB)
+15
+10
+5
+3
+3
+8
+8
-3
-3
+8
+3 +3
0
-5
-10
-6
-3
-3
-3
-8
-15
-20
100
200
500
1k 1.1k
Frequency (Hz)
have sound, will travel
3k
5k
10k
page 4/10
4 Measurement Circuit
Term.1
FET
RL=2.21K
Vs + 2.1V
+
390 Ω
OUTPUT
C=1µF
10 nF
Term.2
GND
Circuit of the microphone
5 Test Setup Drawing
Power Amplifier
Free-field 1/2"
Microphone
Audio Analyzer
50cm
Speaker
MIC
Input
Output
Power&Load
Remote Control
Turn Table
Anechoic Room
have sound, will travel
page 5/10
6 Mechanical Characteristics
6.1 Appearance Drawing (Unit: mm)
Ø3.5±0.1
Filter
1.5±0.1 1.2±0.1
Ø4.0±0.1
0.15±0.05
2-Ø0.3±0.05
1.4±0.1
0.45±0.1
Term1.Output
03
Term2.Ground
6.2 Weight
Less than 0.2g.
have sound, will travel
page 6/10
7
Soldering
7.1 Jig for soldering (Unit: mm)
Jig for soldering
Copper or aluminum or its alloys
MIC
insert hole
Shape of the individual hole
7.2 Cautions
7.2.1 We use antistatic welding machine which can control soldering
temperature automatically during soldering process.
7.2.2 The temperature of the high-frequency electric welding machine is set at
310 ℃ and welding time less than 2 seconds.
7.2.3 ECM should be fixed on the soldering jig which has higher heat radiation
effects during soldering process.
7.2.4 ECM may be destroyed by static electricity easily, so the measures for
eliminating static electricity should be executed.
7.2.5 Don't do the X-ray inspection on ECM after being assembled on the main board.
7.2.6 Don't do the cleaning process with any kind of volatile solvent (Acetone, TCE, alcohol, etc.,),
water, or detergent. Any dust or particle got into ECM can reduce the sensitivity of the
microphone.
7.2.7 Process conditions may affect the acoustic characteristics.
7.2.8 Wave soldering conditions may affect the acoustic characteristics.
have sound, will travel
page 7/10
8
Reliability Test
8.1
Vibration
Test
8.2
Drop
Test
To be no interference in operation after vibrations,10Hz to 55 Hz for 1 minute full amplitude
1.52mm,for 2 hours at three axises in state of standard packing,sensitivity to be within
±3dB from initial sensitivity.
(The measurement to be done after 2 hours of conditioning at +15 ℃~+35℃, R.H 25% ~75%)
To be no interference in operation after dropped to concrete floor 6 time from 1 meter height
in state of Outer packing,sensitivity to be within ±3dB from initial sensitivity.
(The measurement to be done after 2 hours of conditioning at +15 ℃~+35℃, R.H 25% ~75%)
8.3
After exposure at +85°C for 200 hours, sensitivity to be within ±3dB from initial sensitivity.
High
Temperature (The measurement to be done after 2 hours of conditioning at +15 ℃~+35℃, R.H 25%~75%)
Test
8.4
Low
After exposure at -40°C for 200 hours, sensitivity to be within ±3dB from initial sensitivity.
Temperature (The measurement to be done after 2 hours of conditioning at +15 ℃~+35℃, R.H 25%~75%)
Test
8.5
Humidity
Test
After exposure at +50℃ and 95% relative humidity for 120 hours,sensitivity to be within
±3dB from initial sensitivity.
(The measurement to be done after 2 hours of conditioning at +15 ℃~+35℃, R.H 25% ~75%)
8.6
After exposure at -25℃ for 30 minutes, at 20℃ for 10 minutes, at+70℃ for 30 minutes,at
Temperature 20℃ for 10 minutes,5 cycles,sensitivity to be within ±3dB from initial sensitivity.
(The measurement to be done after 2 hours of conditioning at +15 ℃~+35℃, R.H 25% ~75%)
Cycle Test
8.7
After exposure at -25℃ for 60 minutes, at+70℃ for 60 minutes(change time 20 seconds),
Temperature 32 cycles,sensitivity to be within ±3dB from initial sensitivity.
Shock Test
(The measurement to be done after 2 hours of conditioning at +15 ℃~+35℃, R.H 25% ~75%)
8.8
ESD Shock
Test
The microphone under test must be discharged between each ESD exposure without
ground. (contact:±8kV,air:±15kV)
There is no interference in operation after 10 times exposure.
have sound, will travel
page 8/10
9 Packing
9.1 Packing Specification
Drawing(Unit: mm)
Qty(pcs.)
Material
Marking
57
100
Plastic Lid
60
67
100
Plastic Tray
Packing
70
60
Middle
Box
0
14
20×100
Paper
Particular for
Customer's P.O
30×2000
Paper
Particular for
Customer's P.O
45
0
45
Outer
Box
180
230
have sound, will travel
page 9/10
9.2 Packing explain
The Middle Box labeling
Customer packaging
requirement
10 Stock and Transportation
10.1 Keep ECM in warehouse with less than 75% humidity and without sudden temperature
change, acid air, any other harmful air or strong magnetic field.
10.2 The ECM with normal pack can be transported by ordinary conveyances.Please protect
products against moist, shock, sunburn and pressure during transportation.
10.3 Storage Temperature Range :-25 ℃~+70 ℃
10.4 Operating Temperature Range :-25 ℃~+70 ℃
11 Output Inspection standard
Output inspection standard is excuted according to 《ISO2859-1:1999 》.
have sound, will travel
page 10/10