TPA3245EVM: 115W @ 2 ~ 8Ω Stereo, 14 ~ 31.5 Vin, Class D

This user’s guide describes the operation of the evaluation module (TPA3245EVM, rev. B) for the TPA3245 100-W Stereo/200-W mono PurePath™ Ultra-HD Analog Input Power Stage. The user’s guide also provides design information, which includes schematic, BOM, and PCB layout.

The TPA3245EVM PurePath™ Ultra-HD evaluation module demonstrates the TPA3245DDV integrated circuit from Texas Instruments. The TPA3245DDV 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 channel configurations. The NE5532 is a high-performance audio op amp designed to allow TPA3245DDV operation with differential or single-ended input signals to the EVM with differential inputs yielding the optimal performance. The TPA3245EVM is a complete 2-VRMS analog input 2 × 100-W stereo/1 × 200-W mono high-power amplifier ready for evaluation and excellent listening experience.