Microphone Amplifier Module GY-MAX4466 Breakout Sensor with Adjustable Breakout Board for Arduino

  • $10.29
    Unit price per 
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Product Description:
3pcs Electret Microphone Amplifier MAX4466 Module, Microphone Amplifier Module, GY-MAX4466 Breakout Sensor, with Adjustable Gain Breakout Board for Arduino

The MAX4466 is a micropower operational amplifier optimized for use as a microphone preamplifier. Add an ear to your project with this well-designed which has excellent power supply noise rejection.
On the back, we include a small trimmer pot to adjust the gain. You can set the gain from 25x to 125x. That's down to be about 200mVpp (for normal speaking volume about 6" away).

Using introduction:
Connect GND to ground, VCC to 2.4-5VDC.
The audio waveform will come out of the OUT pin.
The output will have a DC bias of VCC/2 so when its perfectly quiet, the voltage will be a steady VCC/2 volts (it is DC coupled).
If the audio equipment you're using requires AC coupled audio, place a 100uF capacitor between the output pin and the input of your device.
If you're connecting to an audio amplifier that has differential inputs or includes decoupling capacitors, the 100uF cap is not required.

Features and benefits:
Power supply voltage: + 2.4V to + 5.5V (can be directly connected to STM / ARDUNIO / Raspberry Pi and other development board)
Power supply rejection ratio: 112dB
Common mode rejection ratio: 126dB
AVOL: 125dB (RL = 100kΩ) rail-to-rail output
Static supply current: andlt;24μA
Gain bandwidth: 600kHz
Size: 20.8MM*13.8MM*7.5MM

Applications:
Cellular phone
Digital repeater
Headphones
Hearing aids
Microphone preamplifier
Portable computer
Speech recognition system

Package Including
3 * MAX4466 Electret Microphone Amplifier Module

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