Description
The MAX4466 Microphone Amplifier Module is a high-quality audio sensing solution designed to amplify sound signals from electret microphones for microcontroller and embedded system projects. Its adjustable gain feature allows precise tuning for different sound levels, making it ideal for sound detection, voice recognition, and STEM lab experiments.
Key Features
High-Quality Electret Microphone Input – Captures clear audio signals
Adjustable Gain – Onboard potentiometer allows tuning from 25× to 125× amplification
Low Noise Amplifier – Ensures clean signal output
Analog Output – Easy interface with microcontrollers and ADC inputs
Compact PCB Module – Easy integration into embedded systems and DIY projects
Low Power Consumption – Suitable for battery-powered applications
Technical Specifications
Operating Voltage: 2.4V – 5.5V DC
Gain Range: 25× to 125× (adjustable via onboard potentiometer)
Analog Output: 0–VCC (centered at VCC/2 for AC signal)
Microphone Type: Electret Condenser
Current Consumption: ~200 µA (typical)
Operating Temperature: -40°C to +85°C
Applications
Voice detection and sound-activated projects
Audio recording experiments
Voice-controlled robotics and IoT devices
Environmental noise monitoring
STEM lab sound sensing experiments
The module can be integrated with development platforms such as the Arduino Uno and Raspberry Pi for audio signal acquisition, real-time monitoring, and data processing.
Educational & Research Value
The MAX4466 Microphone Amplifier Module provides hands-on learning opportunities in:
Sound signal amplification principles
Microphone interfacing with analog electronics
Audio data acquisition and signal processing
Embedded system design for audio applications
Noise level detection and monitoring
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