Digital Stereo Audio Amplifier Board Pam8403 Mini Two Channel 2x3w Class d Audio Power Amplification Module

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

🔌 Pinout & Connections

🛠️ How to Use the PAM8403 Amplifier Board

🧰 Basic Wiring Example:

1. Power the module using a regulated 5V DC supply (can be USB).

2. Connect analog audio source:

   • L IN: Left channel input

   • R IN: Right channel input
     (Use 3.5mm jack, audio module, or DAC)

3. Connect speakers:

   • L OUT +/–: Connect to left speaker

   • R OUT +/–: Connect to right speaker

4. 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

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⚠️ 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