BOM9745L-V403D-HF
这是一款 φ9.7×4.5mm驻极体电容（ECM）全指向焊线麦克风
优势与特点
-
φ9.7×4.5mm 全向麦克风
-
灵敏度：-40±3dB
-
信噪比（SNR）:type.68dB
-
焊线产品
-
符合 RoHS2.0 标准
性能参数
| No. | Parameter | Symbol | Condition | Limits | Unit | ||
| Min | Nom. | Max | |||||
| 3.1 | Sensitivity | S | f=1kHz, Pin=1Pa, 0dB=1V/Pa | -43 | -40 | -37 | dB |
| 3.2 | Directivity |
|
|
Omni-directional |
|
||
| 3.3 | Output Impedance | ZOUT | f=1kHz |
|
|
1.5 | kΩ |
| 3.4 | Current Consumption | IDSS | RL=2.2kΩ, Vs=2.0V |
|
|
500 | µA |
| 3.5 | S/N Ratio | S/N | f=1kHz, Pin=1Pa, (A-Weighted) |
|
68 |
|
dB |
| 3.6 | Operating Voltage | Vmic | 1.0 |
|
5 | V | |
| 3.7 | Sensitivity vs. Voltage | ΔS | Vs= 2.0V to 1.5V |
|
|
3 | dB |
| 3.8 | Total Harmonic Distortion | THD | 94dB SPL at 1kHz |
|
|
1 | % |
| 3.9 | Acoustic Overload Point | AOP | THD 10%@1KHz |
|
123 |
|
|
| 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
-
头戴耳机
