First off, as a new user hello to everyone!

Let me get straight to the point. I might ask help about noise canceling Microphones.

I have assembled a noise canceling Microphone using EK-28522-C25 single supply yet

( for an example as I found here https://www.icrfq.com/part/351-EK_28522_C25.html )

I am experiencing issues understanding the noise canceling Circuit IC.

It contains the EK-28522-C25, (Frequency-100Hz ~ 6kHz - -54dB ±3dB @ 74dB SPL) with 1.3v.

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

Can anyone please help me the detailed of noise canceling frequency?

Thanks in advance!