Hardware Overview
3
SLOU441 – July 2016
Copyright © 2016, Texas Instruments Incorporated
TPA3255EVM
2
Hardware Overview
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 Op
Amp 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.
Figure 1. TPA3255EVM
2.1
TPA3255EVM Features
The TPA3255EVM has the following features:
•
Stereo PurePath Ultra-HD evaluation module
•
Self-contained protection system (short circuit, clip, and thermal)
•
Standard 4-V
RMS
differential input or single-ended line input
•
BTL, PBTL, and SE output configuration support
•
Frequency adjust and oscillator sync interface
•
Single supply voltage range 14–53.5 V
•
Double-sided, plated-through, 2-oz. Cu 2-layer PCB layout
