-MAX4466 Electret Microphone Amplifier Sensor with Adjustable Gain

Add an ear to your project with this well-designed electret microphone amplifier. This fully assembled and tested board comes with a 20-20KHz electret microphone soldered on. compatible with the amplification, we use the MAX4466, an op-amp specifically designed compatible with this delicate task! The amplifier has supply noise rejection, so this amplifier sounds really good and isn't nearly as noisy or scratchy as other mic amp breakouts we've tried! This breakout is best used compatible with projects such as voice changers, audio recording/sampling, and audio-reactive projects that use . 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 (compatible with normal speaking volume about 6 inch ) which is good compatible with attaching to something that expects 'line level' input without clipping, or up to about 1Vpp, Perfect compatible with reading from a microcontroller ADC. The output is rail-to-rail so if the sounds gets loud, the output can go up to 5Vpp! Using it is simple: connect GND to ground, VCC to 2.4-5VDC. compatible with the best percompatible withmance, use the "quietest" supply available (on an , this would be the 3.3V supply). The audio wavecompatible withm 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. The output pin is not designed to drive speakers or anything but the smallest in-ear headphones - you'll need an audio amplifier (such as 3.7W stereo amp) if you want to connect the amp directly to speakers. If you're connecting to a microcontroller pin, you don't need an amplifier or decoup capacitor - connect the OUT pin directly to the microcontroll