Features:

• High-Quality Amplification: MAX4466 op-amp ensures low noise and clear audio output.
• Adjustable Gain: Gain range from 25x to 125x for flexible applications.
• Wide Frequency Range: 20Hz to 20kHz, ideal for audio sampling and voice projects.
• Rail-to-Rail Output: Handles up to 5Vpp for loud sounds.
• Noise Rejection: Superior power supply noise rejection for clean audio.
• Compact Design: Includes a trimmer pot for gain adjustment.

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Description:

The GY-MAX4466 Electret Microphone Amplifier Module is a high-performance audio amplification solution. It uses the MAX4466 op-amp, designed to provide excellent noise rejection and clear output. The adjustable gain (25x to 125x) makes it suitable for a variety of applications, such as audio sampling, voice changers, and audio-reactive projects.

The module outputs a steady VCC/2 voltage when quiet and can handle up to 5Vpp for louder sounds. It is easy to integrate with microcontrollers or line-level audio inputs. For audio-reactive projects, the module works seamlessly with FFT libraries to process output into frequencies.

Note: An audio amplifier is required to drive speakers; otherwise, connect the output directly to a microcontroller ADC pin or audio equipment.

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FAQ:

1. What is the gain range for this module?

   • The gain range is adjustable from 25x to 125x using the onboard trimmer pot.

2. Can I use this module with Arduino?

   • Yes, connect GND to ground, VCC to a quiet supply (like 3.3V), and OUT to an ADC pin.

3. Is an amplifier required to drive speakers?

   • Yes, you’ll need an external audio amplifier to drive speakers.

4. What is the output voltage range?

   • The output voltage is rail-to-rail and can go up to 5Vpp for loud sounds.

5. Is this suitable for audio-reactive projects?

   • Yes, you can use an FFT library to process the audio output into frequencies for such projects.

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