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Frequency resonse curve, Decreaing voltage characteristic -3db(v – BeStar BCM9745P-44 User Manual

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BCM9745P-44

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徐金国

08/05/17

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DRG NO: BS/TEM01.061A

www.be-star.com [email protected]

张秀琴

李毕佳

Note

Drawn

徐金国

Date

08/05/17

Checked by:

Approved by:

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Rev.

BCM9745P-44

Microphone

6

7

Frequency Response 20Hz-20kHz

Rate Voltage 2.5V

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★Frequency Resonse Curve

Decreaing Voltage characteristic -3dB(V

s

=1.5V)

Operating Voltage 1.5-10V

No. Item Specifications

1 Sensitivity -44 3dB(0dB=1V/Pa,1kHz)

2 Impedance 2.2K

Ω

30% at1kHz

3 Directional Omnidirectional

4 S/N Ratio more than60dB(0dB=1V/Pa,1kHz)

5 Max. Input Sound Level 100dB S.P.L

1. Characteristics

Test Condition (Vs=2.5V RL=2.2K

Ta=20

°c R.H.=65%)