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Hardware Overview

3

SLOU441 – July 2016

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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:

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Stereo PurePath Ultra-HD evaluation module

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Self-contained protection system (short circuit, clip, and thermal)

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Standard 4-V

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BTL, PBTL, and SE output configuration support

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Frequency adjust and oscillator sync interface

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Single supply voltage range 14–53.5 V

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Double-sided, plated-through, 2-oz. Cu 2-layer PCB layout