Electret Microphone Amplifier Module – 3.5mm Audio Jack, 4-Pin Header (TDA1084)

Electret Microphone Amplifier Module

Add high-quality audio input to your microcontroller or DSP project with this compact Electret Microphone Amplifier Module. Built around the TDA1084 amplifier IC, it features a standard 3.5mm audio jack for connecting any electret microphone and outputs a clean amplified signal through its 4-pin header — ready to interface with Arduino, Raspberry Pi, or any ADC-equipped board.

Key Features

• Onboard TDA1084 low-noise microphone amplifier IC
• 3.5mm stereo audio jack input for electret microphone
• 4-pin header output: VCC, GND, SIG, US (signal & power)
• Compact red PCB with mounting holes at all four corners
• Low noise, high gain amplification for clear audio capture
• Wide supply voltage range: 3.3V – 5V DC
• Suitable for voice recognition, sound detection, and audio recording projects

Specifications

• Amplifier IC: TDA1084 (CH61 variant)
• Input: 3.5mm audio jack (electret microphone)
• Output: 4-pin header (VCC, GND, SIG, US)
• Supply Voltage: 3.3V – 5V DC
• PCB Color: Red
• Mounting: 4 corner mounting holes
• Dimensions: ~30mm × 30mm

Applications

• Arduino / Raspberry Pi voice input
• Sound level detection and monitoring
• Voice recognition systems
• Audio recording modules
• DIY intercom and PA systems

Package Includes

• 1 × Electret Microphone Amplifier Module