1.SCOPE 范圍 | This specification shall be applied to electret condenser microphone(ECM) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
2.MODEL NO. 產(chǎn)品型號 | H9745W005A-56DB | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3.ELECTRICAL CHARACTERISTICS 電氣特性 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Temp. 環(huán)境溫度 | 20 ± 2℃ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Room Humidity 相對濕度 | 65 ± 5﹪ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
4.MEASUREMENT CIRCUIT 測試電路 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
5. TYPICAL FREQUENCY RESPONSE CURVE (FAR FIELD) 頻響曲線 |
6.DIMENSIONAL DRAWING 外形圖
|
7.RELIABILITY TEST 可靠性測試 | ||
7.1 VIBRATION TEST 振動測試 | To be no interference in operation after vibrations. 10Hz to 50Hz for 1 minrte full amplitude 1.52mm , for 2 hours at three axises | |
7.2 DROP TEST 跌落測試 | To be no interference in operation after dropped to concrete floor each one time from 1meterheight at three directions in state of packing | |
7.3 TEMPERATURE TEST 溫度測試 | -After exposure at 60℃ for 72 hours ,sensitivity to be within ±3dB from initial sensitivity | |
7.4 HUMIDITY TEST 濕度測試 | After exposure at 40℃ and 90 to 95﹪ relative humidity for 72 hours ,sensitivity to be within ±3dB from initial sensitivity | |
7.5 TEMPERATURECYCLE TEST 溫度交變測試 | After exposure at -20℃ for 30 minutes,at 20℃for 10 minutes,at 60℃ for 30minutes, at 20℃ for 10 minrtes.5 cycles ,sensitivity to be within ±3dB from initial sensitivity | |
7.6 TEMPERATURE SHOCK 溫度沖擊 | Temperature change from -20℃ to 60℃ for 30 minures. (changing time :20 sec)After 32 cycles,sensitivity to be within ±3dB from initial sensitivity | |
8 TEMPERATURE CONDITIONS 溫度條件 | ||
8.1 STORAGE TEMPERATURE 貯存溫度： | -25℃ ～ +65℃ | |
8.2 OPERATING TEMPERATURE 操作溫度： | -20℃ ～ +60℃ | |
9.MEASUREMENT SYSTEM 測量系統(tǒng) |
10.REGARDING THE SOLDERING OPERATION 焊接注意事項 |
1 -Recommend to use 15W ～ 30W ceramic soldering iron and apply 330±20℃temperature range |
2 -Soldering should be accomplished within 2 seconds at each terminal so as not to be overheated. |
3 -ECM shall be soldered fixed on the metal block(heat sink)which has the higher radiation effects. Heat sink shall contact with each of ECM. |
4 -The pin hole soldering shall be avoided. |
5 -E.C.M 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. |
11. PACKAGE 包裝圖
12. List and Structure of Materials 材料及結構清單
No. | Part name | Materials Type | Qty | Origin | Manufacture | Remarks |
1 | P.C.B | Carton | 1 | China | Suzhou |
|
2 | Plastic Ring | ABS | 1 | China | Changshu |
|
3 | FET | 2SK596 | 1 | China | Beijing |
|
4 | Back plate | Copper blank | 1 | China | Changshu |
|
5 | Spacer | Mylar | 1 | China | Hebei |
|
6 | Diaphragm | FEP | 1 | USA | Dupont |
|
7 | FELT | Fabric cloth | 1 | China | Dongguan |
|
8 | Case | AL | 1 | China | Shanghai |
|
