JZK 2PCS GY-MAX4466 Electret Microphone Amplifie, MAX4466 Microphone module, Breakout Sensor with Adjustable Gain Control

• Package included: 2 pcs of MAX4466 microphone module. Size: 20.8 x 13.8 x 7.5mm.
• The MAX4466 is a micropower operational amplifier, has been optimized for use as a microphone preamplifier. It has gain stability, requiring only 24μA of supply current to provide a gain bandwidth of 200kHz. After decompression, a minimum stable gain of +5V/V can be achieved, and a gain bandwidth product of 600kHz is provided.
• These Max4466 mic module have rail-to-rail output, high AVOL, and excellent power supply rejection and common-mode rejection ratio, suitable for operation in noisy environments. Widely used in cellular phones, digital repeaters, earphones, hearing aids, microphone preamplifiers, portable computers, voice recognition systems.
• This MAX4466 electret is best used for projects such as voice changers, audio recordingmpling, and audio-reactive projects that use FFT. On the back, includes a small trimmer pot to adjust the gain.
• Power voltage: + 2.4V to + 5.5V (can be directly connected to development board). Power supply rejection ratio: 112dB . Common mode rejection ratio: 126dB. AVOL: 125dB (RL = 100kΩ) rail-to-rail output. Static supply current: less than 24μA. Gain bandwidth: 600kHz.

Package included: 2 pcs of MAX4466 microphone module. Description: The MAX4466 is a micro power operational amplifier , has been optimized for use as a microphone preamplifier. 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 it’s 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 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 x 13.8mm x 7.5mm Applications: Cellular phone Digital repeater Headphones Hearing aids Microphone preamplifier Portable computer Speech recognition system