Product Page
Digital Stereo Audio Amplifier Board Pam8403 Mini Two Channel 2x3w Class d Audio Power Amplification Module
₨0
Need some help?
Contact Us
Product Ships in
2-3-business Days
Payment Methods:
Digital Stereo Audio Amplifier Board Pam8403 Mini Two Channel 2x3w Class d Audio Power Amplification Module in Lahore Pakistan
🔊 PAM8403 Mini Digital Stereo Audio Amplifier Board – 2x3W Class D Dual Channel
✅ Product Overview
The PAM8403 Mini Stereo Audio Amplifier Board is a compact and energy-efficient Class D amplifier module that delivers 2x3W output power. Based on the highly reliable PAM8403 IC, this board is perfect for low-power, portable, or DIY audio applications where space and efficiency are critical.
With its dual-channel stereo output, this amplifier is ideal for driving small 4Ω or 8Ω speakers using a 5V power supply — making it a popular choice for Bluetooth speakers, DIY audio systems, portable media players, and Arduino-based sound projects.
✨ Key Features
-
🔊 Stereo Output: 2x3W into 4Ω speakers at 5V
-
🔋 Ultra-Efficient Class D Amplifier: Up to 90% efficiency
-
⚡ Low Power Consumption: Perfect for USB-powered or battery-operated devices
-
📏 Ultra Compact Size: Ideal for tight enclosures or embedded projects
-
🔧 No Heat Sink Required: Low heat generation at normal volumes
-
🎚️ Volume control compatible: Works with external potentiometers (optional)
-
🛠️ Simple 4-pin input: Easy integration with microcontrollers or audio modules
-
📶 Noise Filtering Capacitors: Clean audio with low distortion (THD < 10%)
📐 Technical Specifications
| Parameter | Value |
|---|---|
| IC Chip | PAM8403 |
| Output Power | 3W + 3W (at 5V, 4Ω speakers) |
| Operating Voltage | 2.5V – 5.5V DC |
| Input Type | Analog audio (Left + Right) |
| Output Type | 2-channel speaker output |
| Efficiency | Up to 90% |
| THD + N | < 10% |
| Speaker Impedance | 4Ω – 8Ω |
| Dimensions | ~21mm x 18mm x 3mm |
| Heat Sink | Not required under normal load |
🔌 Pinout & Connections
| Pin Name | Description |
|---|---|
| VCC | 5V DC power input |
| GND | Ground |
| L IN | Left audio input |
| R IN | Right audio input |
| L OUT +/– | Left speaker output |
| R OUT +/– | Right speaker output |
🛠️ How to Use the PAM8403 Amplifier Board
🧰 Basic Wiring Example:
-
Power the module using a regulated 5V DC supply (can be USB).
-
Connect analog audio source:
-
L IN: Left channel input
-
R IN: Right channel input
(Use 3.5mm jack, audio module, or DAC)
-
-
Connect speakers:
-
L OUT +/–: Connect to left speaker
-
R OUT +/–: Connect to right speaker
-
-
Optional: Use a potentiometer (10kΩ–50kΩ) on inputs for volume control.
⚠️ Do not exceed 5.5V input — doing so can permanently damage the chip.
🔈 Example Use Cases:
-
DIY USB-powered stereo speakers
-
Portable Bluetooth speaker projects
-
Small desktop audio amplifier
-
MP3/WAV player output amplifier
-
Embedded audio in 3D printers, toys, or alarms
-
Arduino or ESP32 sound output enhancement
📦 What's Included
-
1 × PAM8403 Mini Digital Stereo Amplifier Board (2x3W)
🏷️ Suggested SEO Product Titles
-
PAM8403 2x3W Mini Stereo Audio Amplifier Board – Class D 5V Module
-
Mini Dual Channel Audio Amplifier Module 5V – PAM8403 Class D 3W+3W
-
PAM8403 Stereo Audio Power Amplifier Board – 5V USB Powered 2 Channel
⚠️ Safety & Usage Tips
-
Use a clean 5V power source to avoid noise
-
Avoid shorting speaker outputs
-
Use passive speakers only (not powered speakers)
-
Recommended speaker: 3W, 4Ω or 8Ω, full-range
