Texas Instruments PCM5122/42EVM-U, Руководство пользователя

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User's Guide
SLAU444 – May 2012
PCM5122/42EVM-U
The PCM5122/42 families of ICs are advanced segment, high-performance, software-programmable
stereo digital-to-analog converters (DACs). The PCM512x family employs fixed-function audio processing,
while the PCM514x family employs miniDSP audio processing. These devices employ internal line drivers
together with an internal PLL and BCLK reference, so that a serial clock signal (SCK) can be derived. The
advanced segment architecture enables excellent dynamic performance and an improved tolerance to
clock jitter, and the 2.1-V
RMS
ground-centered outputs eliminate the need for output dc blocking capacitors.
The PCM5122/42EVM-U is designed to support the PCM5121, PCM5122, PCM5141 and PCM5142
DACs. The PCM5122/42EVM-U also employs the
TAS1020B USB controller and the SRC4392
asynchronous sample rate converter.
This User’s Guide describes the operation of the PCM5122/42EVM-U and the Texas Instruments
CodecControl software. CodecControl provides a graphical user interface for supported TI audio codecs.
The software is compatible with Microsoft
®
Windows
®
XP, Vista, and Windows 7.
Contents
1 Introduction
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2
2 PCM5122/42EVM-U
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3
3 CodecControl Software
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10
4 PCM5122/42EVM-U Schematic
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15
5 Bill of Materials
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16
List of Figures
1 PCM5122/42EVM-U
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3
2 PCM5122/42EVM-U Block Diagram
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4
3 EVM Software Window
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10
4 Command Dialog
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5 Schematic
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15
PurePath is a trademark of Texas Instruments.
Microsoft, Windows are registered trademarks of Microsoft Corporation.
I
2
S, I
2
C are trademarks of NXP Semiconductors.
All other trademarks are the property of their respective owners.
1 SLAU444 – May 2012 PCM5122/42EVM-U
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