規格
| NO. | Item | Unit | EM9745-42 | EM9745-44 | EM9745-45 | EM9745-46 | Condition |
|---|---|---|---|---|---|---|---|
| 1. | 靈敏度 | dB | -42 | -44 | -45 | -46 | 0dB=1V/Pa at 1kHz |
| 2. | 輸出阻抗 | KΩ | 2.2Max. | 2.2Max. | 2.2Max. | 2.2Max. | f=1kHz |
| 3. | 平均耗電流 | µA | 500 Max. | 500 Max. | 500 Max. | 500 Max. | VCC =2.0V RL=2.2KΩ |
| 4. | 訊噪比 | dB | 58Min. | 58Min. | 58Min. | 58Min. | at 1kHz S.P.L=1Pa (A-Weighted Curve) |
| 5. | 電壓降低 | dB | -3Max. | -3Max. | -3Max. | -3Max. | VCC=3.0V to2.0V |
| 6. | 工作電壓 | V | 1~10 | 1~10 | 1~10 | 1~10 | |
| 7. | 最大輸出音壓 | dB | 110 dB | 110 dB | 110 dB | 110 dB |
示意圖
PIN type
