PAM8403 Mini 5V Digital Amplifier Board With Switch Potentiometer
The PAM8403 Mini 5V Digital Amplifier Board is a compact and efficient Class-D stereo audio amplifier featuring a built-in volume control potentiometer and power switch. Operating from 2.5V to 5.5V DC, it delivers up to 3W + 3W output power when driving 4Ω speakers at 5V. With an efficiency exceeding 90%, the module provides clear audio output while minimizing power consumption and heat generation. Its small size makes it ideal for portable audio devices, DIY speaker projects, multimedia systems, and embedded applications. The onboard volume adjustment offers convenient control without requiring additional external components.
تُعتبر وحدة مضخم الصوت الرقمي PAM8403 بجهد 5 فولت حلاً عمليًا وفعالًا لتطبيقات الصوت المختلفة، حيث تحتوي على مقاومة متغيرة للتحكم بالصوت ومفتاح تشغيل مدمج. تعمل ضمن نطاق جهد 2.5 إلى 5.5 فولت DC وتوفر قدرة خرج تصل إلى 3 واط + 3 واط مع سماعات 4 أوم عند تشغيلها بجهد 5 فولت. تتميز بكفاءة عالية تتجاوز 90٪ مما يقلل استهلاك الطاقة وارتفاع الحرارة. كما أن حجمها الصغير يجعلها مناسبة لمكبرات الصوت المحمولة، المشاريع الإلكترونية، وأنظمة الصوت المدمجة التي تتطلب جودة صوت جيدة وتحكمًا سهلاً في مستوى الصوت.
The PAM8403 Mini Digital Amplifier Board with Potentiometer is a high-efficiency stereo audio amplifier module designed for compact audio applications. Based on the PAM8403 Class-D amplifier IC, the board delivers up to 3W per channel while maintaining excellent energy efficiency and low heat generation.
A built-in rotary potentiometer allows smooth volume adjustment, while the integrated switch enables convenient power control. The module can be powered directly from a 5V USB source, making it suitable for portable and battery-powered projects.
Its compact design makes installation easy in small enclosures, portable speakers, multimedia devices, and DIY audio systems. With efficiency exceeding 90%, the amplifier provides powerful audio output while extending battery life in portable applications.
Specifications
| Parameter | Value |
|---|---|
| Amplifier IC | PAM8403 |
| Amplifier Type | Class-D Stereo Digital Amplifier |
| Operating Voltage | 2.5V – 5.5V DC |
| Recommended Supply Voltage | 5V DC |
| Maximum Output Power | 3W × 2 (at 5V, 4Ω load) |
| Channels | 2 (Stereo) |
| Efficiency | Above 90% |
| Volume Control | Built-in Potentiometer |
| Power Switch | Integrated On/Off Switch |
| Board Width | 30mm |
| Board Depth | 22mm |
| Board Height | 16mm (excluding knob protrusion) |
| Power Source | USB 5V or DC Supply |
Important Notes:
- Operating voltage must not exceed 5.5V.
- Incorrect power polarity may permanently damage the amplifier chip.
- Ensure proper power connections before switching on the module.
Applications
- Portable speaker systems
- Bluetooth speaker projects
- DIY audio amplifiers
- Computer and multimedia speakers
- Arduino and Raspberry Pi audio projects
- Battery-powered sound systems
- Home audio enhancement
- Educational electronics projects
- Embedded audio devices
- Compact stereo sound solutions