NA-FRA381-A13A
NA-FRA381-A13A 是一款小封装、单端输出的底部端口模拟 MEMS 麦克风，由一个 MEMS 传感器和一个低噪声级专用集成电路（ASIC）组成。
优势与特点
-
2.75×1.85×0.9 毫米底部端口
-
单端输出
-
窄灵敏度范围 ±1 分贝
-
信噪比为 62 分贝 A 计权（dBA）
-
频屏蔽
-
兼容标准表面贴装回流焊技术（SMD）
-
符合 RoHS 标准且无卤素
性能参数
| Parameter | Symbol |
Condition | Min |
Nom. |
Max | Unit |
| Sensitivity | S | f=1KHz, Pin=1Pa, 0dB=1V/Pa | -39 | -38 | -37 | dB |
| Operating Voltage | VDD |
|
1.6 | 2 | 3.6 | V |
| Directivity |
|
|
Omni-directional |
|
||
| Polarity |
|
Sound pressure increase | Output voltage increase |
|
||
| Sensitivity vs. Voltage | ΔS | Vs= 3.6V to 1.6V | 0.5 | dB | ||
| Output Impedance | ZOUT | f=1kHz |
|
|
400 | Ω |
| Current Consumption1 | I | 1.6 V to 3.6V |
|
120 | 200 | µA |
|
|
|
20-20KHz Bandwidth, A-Weighted | 60 | 62 |
|
dBA |
| Total Harmonic Distortion | THD | 94dB SPL @1KHz |
|
0.05 | 0.5 | % |
| Total Harmonic Distortion | THD | 125dBSPL@1KHz |
|
1 |
|
% |
| Acoustic Overload Poin | AOP | THD 10%@1KHz |
|
127 |
|
dBSPL |
| Power Supply Rejection | PSR | 100mVpp Squarewave @217Hz, A-weighted |
|
-100 | -90 | dB |
| Power Supply Rejection Ratio | PSRR | 200mVpp Sinewave @1KHz | 60 | 68 |
|
dB |
| DC output | VDC |
|
|
0.85 |
|
V |
| Output load |
Cload |
|
|
|
100 | pF |
| Output load | Rload |
|
8 |
|
|
KΩ |
|
|
Note：Frequency response, sensitivity and current consumption are tested by 100% on product line. | |||||
