The MAX9812-based Electret Microphone Pre-Amplifier Module is a compact and efficient audio solution designed to amplify your voice with clarity and precision. Featuring a built-in CZN-15E high-quality omnidirectional microphone, this module delivers a fixed gain of 20dB, making it perfect for audio recording, speech processing, or DIY public address (PA) systems.

Operating at a low voltage of 2.7V to 3.3V, the module offers analog output that can be directly connected to any power amplifier, audio system, or speaker setup. Just power it with 3.3V, connect the audio output to your amplifier or home speaker, and instantly turn your setup into a functional PA system.

Key Features:

• Based on the reliable MAX9812 amplifier chip

• Built-in CZN-15E omnidirectional electret microphone

• Fixed 20dB gain for clear and amplified audio

• Wide operating voltage: 2.7V to 3.3V

• High-fidelity analog audio output

• Integrated noise rejection and microphone bias circuitry

• 4mm mounting hole for easy integration into enclosures or PCBs

Whether you’re building a voice-controlled system, audio recorder, or a compact PA system, this MAX9812 microphone amplifier module offers the performance, simplicity, and sound clarity you need.

Applications:

• DIY PA Systems

• Voice recognition and speech input projects

• Audio recording systems

• Home automation voice interfaces

• Portable sound systems