咪头6050_规格书

tie

市青兴电子

ECM APPROVAL SHEET 客户

CUSTOMER

国基科技

产品型号

SPECIFICATIONS

DT-A6050

外型尺寸

DIMENSIONAL

Ø6.0×5.0

灵敏度SENSITIVITY -33±3dB (0dB=1V/Pa,at 1KHz)

2.0V 2.2KΩ

VENDOR CUSTOMER CHECKED BY ISSUED BY APPROVED BY

正朱玲

公司地址：

宝安西乡九围路209号

：08 传真：08

网址：.sz-qxdz.

编号:1408026 TYPE: DT-A6050

1.ELECTRICAL CHARACTERISTICS

TEMP=20±2℃Room Humidity=65±5%

1.2 TYPICAL FREQUENCY RESPONSE CURVE

2. MEASUREMENT CIRCUIT

4.STRUCTURE OF MICROPHONE

REMARK：

In order to keep forerunner of the product, our company carry out the layout upgrade and the color Adjustment after the technique renew, no further notice will be given, if have any doubt, please contact our marketing department to consult.

The color difference is because of different purchase batch and the product function

will not be affected, So it does not regards as acceptance standard. 3. APPEARANCE & DIMENSIONS

ECM;DT-A6050

Unit:mm

5.MECHANICAL CHARACTERISTICS

6. RELIABILITY TEST

All tests are to be carried out on the same test batch in the order listed.

The sensitivity to be within ±3dB of initial sensitivity after 3 hours of conditioning at 20℃.

7. CONCEPT OF UNIT

The differ ence between concept of unit “Pascal” and the one of unit “μbar” can be explained as follows. In calibrating the sensitivity of ECMs,

The sensitivity is manifested differently according as the unit is “Pascal” or “μbar”.

That is , the sensitivity will be increased by 20 dB in the usage of unit “Pascal”. Example:-60dB(0dB=1V/μbar)=-40dB(0dB=1V/Pa)

8.SENSITIVITY STANDARD TESTING

8.1 SENSITIVITY

8.2 REQUEST :

The tolerance of sensitivity is not over +/- 3dB to standard microphone.

8.3 TESTING WAY :

8.3.1Testing microphone with standard operating condition.

8.3.2 Put the microphone and standard microphone to face the sound output place(speaker), the distance from sound output to microphone & standard microphone is 50cm. And keep the center distance 5cm between each other to ensure the sound pressure change should be keep in +/- 1dB.

8.3.3 Keep the output sound pressure in +/- 1dB from speaker.(Tested by standard microphone)

8.3.4 The sensitivity of microphone is getting its output voltage when sound output keep in 1000Hz & 0.1Pa.

9. REGARDING THE SOLDERING OPERATION

THE STORAGE, TRANSPORTATION AND USING GUIDE OF CONDENCER MICROPHONE

9.1Testing Condition

In Normal Weather

Environment Temperature : 5 ~ +35°C

Relative Humidity : 45 ~ 85%

Air Pressure : 86 ~ 106Kpa

In Arbitrate Weather

Environment Temperature : 20 +/- 2°C

Relative Humidity : 60 ~ 70%

Air Pressure : 86 ~ 106Kpa

10.Every Mic. has installed FET., The FET. is easy broken by strong heat and

static electricity, so when you working on, pls be attention that :

Recommend using constant branding iron in 15 ~ 30W, and in temperature range 280 ~ 320°C.

Soldering time not over 3 seconds.

Don’t stay any hole or dust when soldering.

To avoid the Mic. be broken by static electricity, the people and working station should install preventstatic electricity equipment.

Pls using the easy dissipate heat material (Such as Aluminum…) to be the