UNIVERSAL HUB 2PCS PAM8403 Mini Amplifier Board - 5V Input, 2x3W Output, Compact Class D Audio Amplifier for DIY Projects

Description

The PAM8403 mini amplifier board is a compact yet powerful audio amplifier designed for applications where space is limited but audio quality is crucial. Operating with a 5V input voltage, this board efficiently drives speakers with a combined output power of 2x3W (6W total). Its small size and low power consumption make it ideal for portable electronics, DIY projects, and embedded systems where high-fidelity sound reproduction is desired. Design and Components: The PAM8403 amplifier board integrates the PAM8403 audio amplifier chip, which is known for its efficiency and compact size. This chip utilizes Class-D amplification, ensuring high efficiency (greater than 90%) and minimal heat dissipation, even at high output levels. The board typically features a small form factor, often less than 30mm in length and width, making it suitable for integration into various devices without occupying much space. Power Supply and Input: Operating on a 5V DC input, the board is versatile and can be powered directly from USB ports, power banks, or other 5V sources commonly found in consumer electronics. This input voltage requirement is standard and ensures compatibility with a wide range of power sources, simplifying integration into different projects. Output Power and Performance: With a rated output power of 2x3W (at 4Ω load and 5V supply), the PAM8403 amplifier board delivers clear and robust sound suitable for small to medium-sized speakers. It supports stereo output (left and right channels), enabling stereo sound reproduction for an immersive audio experience. The amplifier is capable of driving speakers with impedances ranging from 4Ω to 8Ω, making it flexible for various speaker configurations.