TPA3116 based audio amplifier module Key features and benefits Function and architecture Uses the TPA3116 audio amplifier IC for compact, efficient amplification suitable for small stereo or twochannel applications. Construction and materials PCB constructed with 1.6 mm thick doublesided sheet metal. 2.0 oz copper coating and tinplated finish to promote reliable current flow. Firstclass PCB quality to support longterm reliability. Power integrity and decoupling Main signal path uses SMD electrolytic capacitors totaling 4 x 470 uF. Capacitor arrangement supports strong and continuous power delivery for stable operation. Signal quality and components quality chip resistors selected to help achieve a good signaltonoise ratio for the entire unit. Applications and use scenarios Home audio upgrade Ideal for embedding in compact bookshelf speakers or small hifi setups to improve amplification with a clean, reliable power path. DIY speaker projects Suitable for custom speaker enclosures and DIY stereo builds where a compact, efficient amplifier module is desired. Smallscale audio devices and test benches Useful for prototyping or educational projects that require a straightforward dualchannel amplification solution with solid noise performance.