Electret Microphone Amplifier - MAX9814 with Auto Gain Control

Overview

Capture crystal-clear audio in your projects with the Electret Microphone Amplifier - MAX9814. This compact module is engineered to deliver consistent audio levels, thanks to its built-in Automatic Gain Control (AGC). Whether you're recording voice, detecting sounds, or building interactive audio projects, the MAX9814 ensures optimal recording quality without manual adjustments. Its low-noise design and wide supply voltage range make it a versatile choice for makers, students, and engineers in Egypt.

Key Features

• Automatic Gain Control (AGC): Maintains consistent audio levels, adapting to varying sound intensities automatically.
• Low-Noise Amplifier: High signal-to-noise ratio for clear, distortion-free audio capture.
• Wide Supply Voltage: Operates from 2.7V to 5.5V, compatible with 3.3V and 5V systems.
• Adjustable Gain: Selectable gain settings (40dB, 50dB, 60dB) via a simple jumper or pin.
• Compact Form Factor: Small footprint (approximately 14mm x 14mm) easily integrates into breadboards and projects.
• LED Indicator: Visual power indication for easy status monitoring.

Technical Specifications

• Chipset: MAX9814
• Supply Voltage: 2.7V - 5.5V DC
• Current Consumption: ~3mA (typical)
• Gain Settings: 40dB, 50dB, 60dB (selectable)
• AGC Attack/Release: Adjustable via onboard potentiometer
• Output: Analog audio signal
• Frequency Response: 100Hz - 10kHz (typical)
• Dimensions: 14mm x 14mm x 3mm (approx.)
• Connections: VCC, GND, OUT, GAIN (optional)

Applications & Use Cases

• Voice Recorders: Enhance audio capture for recording devices and voice-controlled systems.
• Sound-Activated Projects: Trigger lights, alarms, or other responses based on sound levels.
• Speech Recognition: Improve accuracy in voice-controlled IoT and AI projects.
• Noise Monitoring: Detect ambient noise levels for environmental monitoring systems.
• Educational Kits: Perfect for teaching audio electronics and signal processing.
• Robotics: Enable auditory feedback for robots and interactive installations.

What's Included

• 1x MAX9814 Electret Microphone Amplifier Module
• (Note: No microphone included; the module has a built-in electret microphone, but for external mic, you can solder one onto the pads.)

Compatibility

• Works with all major microcontrollers: Arduino, ESP32, Raspberry Pi, STM32, and more.
• Analog output can be connected to ADC pins on any microcontroller.
• Compatible with 3.3V and 5V logic levels.

MOKWN Recommendation

For Egyptian makers seeking reliable audio capture, the MAX9814 is a top choice. Its AGC simplifies projects where sound levels fluctuate, saving you time and ensuring consistent results. We recommend pairing it with our Arduino Uno or ESP32 boards for quick prototyping. Whether you're a student, hobbyist, or professional, this module will elevate your audio projects. Order today and get free shipping across Egypt!