Chapter 1
SLEU074 – June 2006
Overview
The TAS5518-5152K8EVM PurePath Digital™ customer evaluation amplifier module
demonstrates two audio integrated circuits, TAS5518 and TAS5152, from Texas
Instruments (TI).
The TAS5518PAG is a high-performance 32-bit (24-bit input) multichannel PurePath
Digital pulse-width modulator (PWM) based on Equibit™ technology, with a fully
symmetrical AD modulation scheme. It accepts input sample rates from 32 kHz to
192 kHz. The device also has digital audio processing (DAP) that provides 48-bit signal
processing, advanced performance, and a high level of system integration. The device
has interfaces for headphone output and power supply volume control (PSVC).
The TAS5152DKD is a compact, high-power, digital amplifier power stage designed to
drive a 4-
Ω
loudspeaker up to 125 W (10% THD+N). It contains integrated gate drivers,
four matched and electrically isolated enhancement-mode N-channel power DMOS
transistors, and protection/fault-reporting circuitry.
The DKD PowerPAD™ package top side allows heat transfer through a heatsink. The
heatsink in this design is for evaluation purposes only.
This EVM, together with a TI input-USB board, is a complete 7-channel digital audio
amplifier system that includes digital input (S/PDIF), analog inputs, interface to PC, and
DAP features, such as digital volume control, input and output mixers, auto mute,
equalization, tone controls, loudness, dynamic range compression, and PSVC output.
There are configuration options for stereo line level output, stereo headphone output,
and power-stage failure protection.
This 6.1 system is designed for home-theater applications, such as A/V receivers, DVD
minicomponent systems, home theater in a box (HTIB), DVD receivers, or plasma
display panels (PDPs).
Topic
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Page
1.1
TAS5518-5152K8EVM Features
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8
1.2
PCB Key Map
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9
SLEU074 – June 2006
Overview
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