BUM1045L-N343R-HF
这是一款 φ10.0×4.5mm驻极体电容（ECM）单指向焊线麦克风
优势与特点
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φ10.0×4.5mm 单指向麦克风
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灵敏度：-34±3dB
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信噪比（SNR）:type.73dB
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焊线产品
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符合 RoHS2.0 标准
性能参数
| Parameter | Symbol | Condition | Limits | Unit | ||
| Min | Nom. | Max | ||||
| Sensitivity | S | f=1kHz, Pin=1Pa, 0dB=1V/Pa | -37 | -34 | -31 | dB |
| Directivity |
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Uni-directional |
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| Output Impedance | ZOUT | f=1kHz |
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2.0 | kΩ |
| Current Consumption | IDSS | RL=2.2kΩ, Vs=2.0V |
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500 | µA |
| S/N Ratio | S/N | f=1kHz, Pin=1Pa, (A-Weighted) |
|
73 |
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dB |
| Operating Voltage | Vmic | 1.0 |
|
5 | V | |
| Sensitivity vs. Voltage | ΔS | Vs= 2.0V to 1.5V |
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|
3 | dB |
| Total Harmonic Distortion | THD | 94dB SPL at 1kHz |
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|
1 | % |
| Acoustic Overload Point | AOP | THD 10%@1KHz |
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121 |
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dBSPL |
| Note：Considering tester and testing difference between each other, sensitivity 0.5 dB out of specification will be acceptable by customer for an acceptance. | ||||||
应用实例
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头戴耳机
