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 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