Description
Audio Amplifier Music Player Board with Microphone Connection Support
The PAM8403( 3.0 BT) Audio Amplifier Board with Microphone Support is a compact Class-D stereo amplifier module designed for DIY audio projects, microphone amplification, and small speaker systems. Operating on a 5V DC power supply, this efficient amplifier provides 3W + 3W stereo output, making it ideal for portable speakers, voice amplifiers, and DIY electronics projects.
This board supports multiple microphone types, including condenser microphones, earphone microphones, and dynamic microphones, allowing flexible integration into various audio projects. The module can also work with Bluetooth audio systems, AUX audio input, and echo effects depending on the connected audio system.
Equipped with IR receiver support and audio input pins, this amplifier board is perfect for DIY portable audio systems, teaching experiments, and electronics learning kits. With its high efficiency, low noise performance, and compact size, the PAM8403 amplifier is widely used in portable speakers, sound modules, and embedded audio circuits.
Key Features
• High-efficiency PAM8403( 3.0 BT) Class-D stereo amplifier chip.
• 3W + 3W stereo output power.
• Operates on 5V DC power supply.
• Supports microphone input connection.
• Compatible with condenser, earphone, and dynamic microphones.
• Compact PCB design for DIY electronics projects.
• Low heat generation and high efficiency audio amplification.
• Supports integration with Bluetooth audio modules.
• Ideal for portable speakers and voice amplification circuits.
• Includes IR receiver diode for remote signal input.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Audio Amplifier Module |
| Amplifier Chip | PAM8403( 3.0 BT) |
| Amplifier Type | Class-D Digital Amplifier |
| Output Power | 3W + 3W Stereo |
| Input Voltage | 5V DC |
| Audio Input | Stereo Audio Input |
| Microphone Support | Condenser, Earphone Mic, Dynamic Mic |
| Efficiency | Up to 90% |
| PCB Size | Compact Mini Module |
| Additional Component | IR Receiver Diode |
| Cooling Requirement | No Heat Sink Required |
| Application | Portable Audio Amplification |
Applications
• DIY Bluetooth speaker projects.
• Portable audio systems.
• Microphone voice amplifiers.
• Electronics learning and experimentation.
• Audio signal amplification circuits.
• DIY karaoke systems.
• Small speaker systems.
• Embedded audio electronics projects.
• Educational STEM electronics kits.
Precautions
• Use regulated 5V DC power supply only.
• Avoid reverse polarity connection.
• Do not exceed rated voltage input.
• Ensure proper speaker impedance (4Ω or 8Ω).
• Keep the board away from moisture and dust.
• Handle PCB carefully to avoid short circuits.