Question about noise cancelling Microphones

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Cueen1950
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Joined: Mon Jul 10, 2017 2:02 pm

Question about noise cancelling Microphones

Post by Cueen1950 » Mon Jul 17, 2017 6:13 pm

have constructed a noise canceling Microphone utilizing EK-23032-000 single supply yet I am experiencing issues understanding the noise canceling Circuit IC.


It contains the EK-23133-A21, (Frequency-100Hz ~ 6kHz - -54dB ±3dB @ 74dB SPL) with 1.3v.


Can anyone please help me the detailed of noise canceling frequency?
https://www.icrfq.com/part/111-EK_23032_000.html


Sensitivity W/M 54db±3dB-74dB SPL between 65db±5dB-85dB
Air pumping Capacity 7mm³ and fo 480Hz
Frequency Range 450-8000Hz
Maximum Sine Power 10mW
SPL 110dB max sine power
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