PAM8302 2.5Watt Mono Audio Amplifier

The PAM8302 2.5-Watt Audio Amplifier Module is a compact, high-performance breakout board designed for amplifying audio signals in a wide range of embedded and portable applications. Based on the PAM8302 Class-D amplifier IC, this module delivers clear, efficient sound reproduction with minimal power consumption. It's an excellent choice for hobbyists, makers, and engineers looking to add quality audio output to their projects, from portable speakers to DIY audio devices and interactive installations.

Key Features:

• Power Output: 2.5 watts into an 8-ohm speaker, providing clear and loud audio for small to medium-sized projects.
• Operating Voltage: Wide input range from 2.0V to 5.0V, compatible with battery-powered and USB-powered applications.
• Class-D Amplification: High-efficiency design minimises heat generation and power consumption, ideal for portable devices.
• Mono Audio Output: Single-channel amplification suitable for straightforward audio applications.
• Simple Interface: Easy-to-use breakout design with clearly labelled connections including A+, A-, SD (shutdown), Gnd, and power pins.
• Compact Form Factor: Small purple PCB footprint with standard pin headers for breadboard and prototype integration.
• On-Board Gain Control: Adjustable potentiometer for fine-tuning output volume directly on the module.
• Low Component Count: Minimal external components required, simplifying circuit design and assembly.
• Header Pins Included: Supplied with through-hole pin headers for flexible mounting options.

Features:

• Main IC: PAM8302 Class-D audio power amplifier
• Output Power: 2.5W into 8Ω at 5V supply
• Supply Voltage Range: 2.0V to 5.0V
• Mono (single-channel) audio configuration
• Efficiency: Up to 90% typical, reducing power waste and heat
• Low shutdown current for power-saving modes
• On-board volume/gain adjustment potentiometer
• Thermal and short-circuit protection
• Speaker output terminals clearly marked (A+, A-)
• Ground and power input pads (Gnd, 2.5V / 5V Class D)
• Shutdown pin (SD) for enabling/disabling amplifier output
• Standard 0.1-inch pitch header compatibility
• Purple solder mask PCB with white silkscreen labelling

Applications

• Portable Speakers: Add amplified audio to battery-powered speaker projects.
• DIY Audio Devices: Build custom MP3 players, sound effects modules, and audio gadgets.
• Educational Projects: Teach principles of audio amplification and electronics design.
• Robotics and Interactive Installations: Provide audio feedback and voice output in robotic and interactive systems.
• Home Automation: Integrate audio alerts and notifications into smart home solutions.

Why Choose the PAM8302 2.5-Watt Audio Amplifier Module? This module combines high-quality Class-D amplification with a user-friendly breakout design, making it perfect for anyone looking to incorporate powerful, efficient audio into their projects. Its wide voltage compatibility and compact size make it a versatile addition to your electronics toolkit, whether you're building a portable speaker or adding sound to your next creation.