PAM8403 Audio Amplifier with Volume Control

Description:

The PAM8403 is a Class D stereo audio amplifier that can drive small speakers effectively, offering good sound quality while minimizing power loss. The built-in volume control allows users to adjust the audio level conveniently, making it suitable for applications such as Bluetooth speakers, computer sound systems, and other audio playback devices.

Specifications:

While variations may exist depending on the specific module, here are the typical specifications for the PAM8403 Audio Amplifier with Volume Control:

• Power Supply Voltage: Typically 5V DC (can operate effectively between 2.5V to 5.5V)
• Output Power:
  • Up to 3W per channel at 5V (8-ohm load)
  • 2.5W per channel at 4-ohm load
• Total Harmonic Distortion (THD): < 0.1% (at 1W output)
• Signal-to-Noise Ratio (SNR): > 90 dB
• Frequency Response: 20 Hz to 20 kHz
• Channel Configuration: Stereo (2 channels)
• Volume Control: Potentiometer for smooth adjustment of the audio output level
• Dimensions: Compact size, often around 50mm x 40mm x 15mm (exact dimensions can vary with different designs)
• Weight: Lightweight, usually around 20-30 grams
• Operating Temperature Range: Typically from -20°C to 85°C
• Protection Features: Short-circuit and over-temperature protection for reliable operation

Applications:

• DIY Bluetooth speakers and sound systems
• Mini audio amplifier projects in robotics and electronics
• Computer speaker enhancements
• Audio output for televisions or monitors without built-in amplification
• Portable sound systems for public speaking or events
• Any projects involving small speakers requiring amplified output

Conclusion:

The PAM8403 Audio Amplifier with Volume Control is an excellent choice for those looking to add audio amplification to their projects without the need for complex circuitry. Its ease of integration, combined with low power consumption and decent audio quality, makes it suitable for various applications. When using this amplifier, ensure you have appropriate speakers (typically 4-8 ohms) and a stable power supply for optimal performance. Always refer to the manufacturer’s datasheet for specific pin configurations and additional utilization guidelines.