Texas Instruments TPA2050D4EVM, User Manual

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1 Introduction
1.1 Description
User's Guide
SLOU206 – July 2008
TPA2050D4EVM Evaluation Module
Contents
1 Introduction
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1
2 Operation
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2
3 TPA2050D4EVM Schematic
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8
4 TPA2050D4EVM PCB Layers
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5 TPA2050D4EVM Parts List
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11
List of Figures
1 Stereo Differential Mode Input Configuration
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3
2 Non-Differential Mode Input Configuration
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3
3 Place Shunts Horizontally Across SCL and SDA
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4
4 Starting the Software
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5 Software Interface
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6 Connect I
2
C Controls to JP3
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7 TPA2050D4EVM Schematic
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8 TPA2050D4EVM – Top Layer
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9 TPA2050D4EVM – Layer 2
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10 TPA2050D4EVM – Layer 3
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11 TPA2050D4EVM – Bottom Layer
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List of Tables
1 Jumpers Default Setting
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2
2 Test Points Information
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3 TPA2050D4EVM Parts List
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The TPA2050D4 is a stereo Class-D power amplifier along with a stereo DirectPath™ headphone
amplifier. Both input channels have 32-step volume control and the DirectPath™ headphone amplifier has
a 4-step level gain control with power limiter. The volume is controlled through an I
2
C™ interface. All
amplifiers have output short-circuit and thermal-overload protection.
The TPA2050D4 evaluation module(EVM) is a complete, stand-alone audio board. It contains the
TPA2050D4 WCSP(YZK) Class-D audio subsystem.
All components and the EVM are Pb free.
DirectPath is a trademark of Texas Instruments.
Windows is a trademark of Microsoft Corporation.
I
2
C is a trademark of Philips Electronics.
SLOU206 – July 2008 TPA2050D4EVM Evaluation Module 1
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