Modul Sensor Mic Microphone MAX9814 Auto Gain Control Audio Amplifier

Microphone Amplifier Stable MAX9814 Auto Gain Control for Arduino

Fetures :
Add an ear to your project with this well-designed electret microphone amplifier with AGC. This fully assembled and tested board comes with a 20-20KHz electret microphone soldered on. For the amplification, we use the Maxim MAX9814, a specialty chip that is designed for amplifying electret microphones in situations where the loudness of the audio isn’t predictable.

This fancy microphone amplifier module is a step above the rest, with built in automatic gain control. The AGC in the amplifier means that nearby ‘loud’ sounds will be quieted so they don’t overwhelm & ‘clip’ the amplifier, and even quiet, far-away sounds will be amplified. This amplifier is great for when you want to record or detect audio in a setting where levels change and you don’t want to have to tweak the amplifier gain all the time.

Specifications:
– Supply Voltage: 2.7v-5.5v @ 3mA current
– Output: 2Vpp on 1.25V bias
– Frequency Response: 20Hz – 20KHz
– Programmable Attack and Release Ratio
– Automatic gain, selectable max from 40dB, 50dB or 60dB
– Low Input-Referred Noise Density of 30nV/
– Low THD: 0.04% (typ)