TPA3255EVM: 325W x2 @ 4Ω, Class D Stereo

This User's Guide describes the operation of the evaluation module (TPA3255EVM, rev A) for theTPA3255 315-W Stereo/600-W mono PurePath™ Ultra-HD Analog Input Power Stage. The user's guide provides design information, which includes schematics, BOM, and PCB layout. For questions and support go to the E2E forums (e2e.ti.com).

The TPA3255EVM PurePath™ Ultra-HD evaluation module demonstrates the TPA3255DDV integrated circuit from Texas Instruments. The TPA3255DDV is a high-performance high-power class-D amplifier that enables true premium sound quality with high-efficiency class-D technology. It features an advance integrated feedback design and high-speed gate driver error correction (PurePath Ultra-HD), which enables ultra-low distortion across the audio band and superior audio quality. This EVM supports two BTL (stereo 2.0) output channels, one PBTL (mono 0.1) output channel, one BTL plus two SE (2.1) output channels, and four SE (4.0) output channels configurations. The NE5532 is a High Performance Audio OpAmp designed to allow TPA3255DDV operation with differential or single ended input signals to the EVM with differential inputs yielding the optimal performance. TPA3255EVM is a complete 2-Vrms analog input 2 × 315-W stereo/1 × 600-W mono high-power amplifier ready for evaluation and excellent listening experience.