Type 类型

Unit

WS4020M/4020M-B

Sensitivity 灵敏度

dB

-42±3dB RL=2.2KΩ Vs=2.0V( 1KHz 0dB=1V/Pa)

Impedance 阻抗

Ω

Max. 2.2KΩ 1KHz (RL=2.2KΩ)

Directivity 指向特性

Omni-directional 全向性的

Frequency 频率

HZ 

20-16000 Hz

Max operation voltage最大操作电压

V

8V

Standard operation voltage 标准操作电压

V

1V

Current consumption 消耗电流

MA

Max 0.5Ma

Sensitivity reduction 灵敏度降低

dB

2.0V-1.5V Sensitivity Variation less than 3dB

S /N ratio 信噪比