Description of PAM8403 Mini Digital Amplifier Board The PAM8403 Amplifier Board is a compact and efficient Class-D stereo audio amplifier designed for small board spaces. Powered by a simple 5V DC input, it delivers 3W 3W stereo output with high-quality sound reproduction. This board is ideal for portable and DIY audio applications, offering excellent performance, efficiency up to 90%, and the ability to drive speakers directly from its outputs. Key Features Compact Class-D stereo audio amplifier with 3W 3W output power. Wide operating voltage range: 2.5V to 5.5V DC. Onboard knob for convenient volume control. Filter less architecture with low EMI and low quiescent current. Built-in protection features: short-circuit protection and thermal shutdown. Specification Parameter Value Operating Voltage 2.5V – 5.5V DC Output Power 3W 3W @ 10% THD with 4Ω Load @ 5V DC Gain 24 dB (Max) Efficiency Up to 90% Noise Performance Superior Low Noise Operating Temperature -40°C to 85°C Protection Features Short-Circuit Protection, Thermal Shutdown Volume Control Integrated knob Dimensions (L × W × H) 20 × 29 × 13 mm Weight 8.7 g Applications Portable speaker systems DIY audio projects Low-power stereo sound systems Computer and laptop audio amplifiers Embedded audio devices Packaging Details 1 × PAM8403 Stereo Audio Amplifier Board PAM8403 Mini Digital Amplifier Board - Frequently Asked Questions What power supply does the PAM8403 Amplifier Board require? The amplifier works with a DC supply ranging from 2.5V to 5.5V. A regulated 5V supply is recommended for best performance. What is the output power of the PAM8403 Amplifier Board? It delivers up to 3W 3W stereo output at 10% THD with a 4Ω load when powered at 5V DC. Does the PAM8403 Amplifier Board have volume control? Yes, it comes with an onboard knob to control the loudness of the sound. Can the PAM8403 Amplifier Board drive speakers directly? Yes, the board can directly drive stereo speakers (recommended 4Ω or 8Ω). What safety features are included in the PAM8403 Amplifier Board? It has built-in short-circuit protection and thermal shutdown for safe operation. Is the PAM8403 Amplifier Board suitable for portable projects? Yes, due to its small size, lightweight design, and high efficiency (up to 90%), it is ideal for portable and DIY audio systems. Attention Note: This item is non-returnable. If this item arrives damaged or is not functioning properly, please don't hesitate to contact us to determine if further action is required. Need Help? Our engineers are available to assist you. If you have any queries, please leave a comment below or call 09678110110 from 09:00 am to 06:00 pm (7 days a week). You can also reach us via WhatsApp or Facebook Inbox
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