規 格 承 認 書
PECIFICATION FOR APPROVAL
客 戶
CUSTOMER
項 目
ITEM
型 號
：
：
立创
单指向驻极½电容咪头（ECM）
TYPE
：
GMI6050U-2C38DB
描述
DESCRIPTION
：
φ6.0
x H5.0 mm 2V 1033 -38dB
客戶料號
CUSTOMER NO.
：
規 格 書 號
SPECIFICATION NO.：
版 本
EDITION NO.
日 期
DATE
：
：
≤2.2K
Ω
S/N:
≥58
dBA
V1.2
2019-12-27
客戶承認
CUSTOMER CONFIRM AND SIGN
檢查
TESTED BY
審核
CHECKED BY
承認
APPROVED BY
東莞市赢海電子有限公司
DONGUAN INGHAI ELECTRONICS CO.,LTD
½½
ISSUED BY
審查
CHECKED BY
確認
APPROVED BY
周明
李林
地址：廣東省東莞市長安鎮上沙管理區北橫路 8 號
電話 /
TEL：0769-83060958
傳真
/ FAX： 0769-81608993
網址：HTTP://WWW.INGHAI.COM
1/5
A. SCOPE
This specification applies electret condenser microphone,
GMI6050U-2C38DB
B. SPECIFICATION
■Test
condition: RL=2.2KΩ
No.
1
2
3
4
5
6
VS=2V
Symbol
TEMP=20℃±2℃ Related humidity=65±5%
Unit
Specification
Uni-directional
Item
Directivity
Sensitivity
Standard operating voltage
Output impedance
Frequency
Max operating voltage
Condition
S
Vs
Zout
dB
V
KΩ
Hz
V.
-38±3
2V
≤2.2
50-16,000
10
0dB=1V/Pa,1KHz
f=1KHz, 1Pa
7
Sensitivity reduction
△S-Vs
dB
-3
f=1KHz, 1Pa
Vs=1.5VDC to 3.0VDC
8
Max. current consumption
I
DSS
mA
≤0.5
9
10
11
12
13
14
Signal to noise ration
Max input sound level
Operation temp.
Storage temp.
Dimension
Terminal
S/N
SPL
dBA
dB
℃
℃
mm
≥58
110
-20 ~+70
-40 ~+80
φ6.0
x 5.0
Terminal
f=1KHz, P in=1Pa
See appearance drawing
See appearance drawing
2/5
C.TYPICAL FREQUENCY RESPONSE CURVE
单指向
Frequency(Hz)
D. APPEARANCE DRAWING
0.15±0.05
5.0±0.2
6.0±0.15
Filter
E. MEASUREMENT CIRCUIT
5.5±0.15
3/5
F.
可靠性试验
Reliability Test
经过以下所有试验在
20℃的条件下放½ 3
小时后,麦克风的灵敏度与试验前比较变化在
3dB
以
内
After any following tests, the sensitivity of the microphone to be within
±3dB
of initial sensitivity
after 3hours of conditioning at 20℃
5-1
振动试验
Vibration
周波数
1/Frequency1:10Hz½55Hz
振幅/Amplitude:1.52mm
变化/Change
of Frequency:1 octave/min
3
方向,各
2
小时/hours
in each of 3 axes
+80±5℃
for 96 hours
-40±5℃
for 96 hours
90%½95%RH,+70±5℃
for 96 hours
-20℃
25℃
70℃
(2h) (1h) (2h) (1h) (2h)×10 cycles
Height:1m
顺序:三个面各跌
10
次
Procedure:10 times from each of 3 axises
-20℃
70℃
30min 30s
30min ×10 cycles
5-2
高温试验
Dry Heat
5-3
½温试验
Dry Cold
5-4
高温高湿试验
Damp Heat
5-5
温度循环试验
Temperature cycles
5-6
跌½试验
Packing drop test
5-7
温度冲击试验
Temperature impact test
5-8
静电冲击试验
6000V(contact), 15000V(air)
×10
axises
Electrostatic shock test
备注
Note
6-1
工½温度范围
Operation Temperature -20℃½70℃
6-2
储存温度范围
Storage Temperature
-40℃½80℃
G.
焊接条件
Soldering Condition
7-1
焊接½用
90W
的烙铁。
The soldering copper of a type of 90W shall be applied
焊接条件
Soldering Condition.
7-2
电烙铁表面温度
320±10℃
The temperature of the working surface of the soldering copper shall be 320±10℃
7-3
焊接时把麦克风嵌入散热½力强的金属块内。
ECM shall be soldered fixed on the metal block(heat sink)which has the higher radiation effects said
heat sink
Shall contact with of ECM.
4/5
7-4
焊接时间控制在
2½3
秒内。
time for each terminal shall be 2½3 sec.
7-5
焊接后不½出现针孔。
The pinhole after soldering shall be avoided.
7-6
静电容易破坏麦克风必须采取措½避免（电烙铁接地，戴静电环等。
）
ECM may easily destroyed by the static electricity and the countermeasure for eliminating the static
electricity (the ground for soldering copper, for worktable and for human body) shall be executed.
7-7
散热板½状
Shape of heat sink
7-8
固定部孔½状
Shape of hole at fixed part
unit:mm
5/5
嵌入式系统
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