Texas Instruments TAS5001-5122C2EVM, User Manual

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Introduction

The TAS5122DCA PurePath Digital



 customer evaluation module

demonstrates two integrated circuits (IC), the TAS5001 and the TAS5122DCA
from Texas Instruments. The TAS5001 is a high performance 24-bit stereo
digital modulator based on Equibit



 technology. This IC converts input PCM

serial digital audio data to a pulse width modulated (PWM) audio data stream.
The TAS5001 PWM modulator accepts I

2

S data with a sample rate up to

96 kHz. The TAS5001 is designed for implementation together with the
TAS5122DCA digital output stage for driving two loudspeakers in a stereo
application.

The TAS5001 is pin-compatible with the TAS5010 PCM−PWM modulator. The
maximum sample rate for the TAS5010 is 192 kHz.

Together, the TAS5001 and one TAS5122DCA provide the complete PurePath
Digital

TM

 conversion of a 3.3-V digital audio input stream up to 2x30 W into 6-

Ω

loudspeakers. The chipset is ideal for applications requiring excellent audio
quality, minimum size and weight, and high power efficiency. The chipset can
be used in a range of products such as micro-components systems, home
theater in a box, DVD receivers, or TV sets.

The TAS5001−5122C2EVM is a complete true digital amplifier including an
S/PDIF receiver, I

2

S audio interface, volume control, interface to personal

computer through the parallel port, and required control logic. The amplifier
reference design is surrounded by a white line on the PCB.

Topic

Page

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TAS5001−5122C2EVM Features

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Chapter 1