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

Product Description:3pcs Electret Microphone Amplifier MAX4466 Module, Microphone Amplifier Module, GY-MAX4466 Breakout Sensor, with Adjustable Gain Breakout Board for ArduinoThe 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: 112dBCommon mode rejection ratio: 126dBAVOL: 125dB (RL = 100kΩ) rail-to-rail outputStatic supply current: andlt;24μAGain bandwidth: 600kHzSize: 20.8MM*13.8MM*7.5MMApplications:Cellular phoneDigital repeaterHeadphonesHearing aidsMicrophone preamplifierPortable computerSpeech recognition systemPackage Including3 * MAX4466 Electret Microphone Amplifier Module