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1 Introduction
1.1 Description
User's Guide
SLOU249 – April 2009
TPA2054D4EVM
Contents
1 Introduction ................................................................................................................... 1
2 Operation ..................................................................................................................... 2
3 TPA2054D4EVM Schematic ............................................................................................... 9
4 TPA2054D4EVM PCB Layers ............................................................................................ 10
5 TPA2054D4EVM Parts List ............................................................................................... 12
List of Figures
1 Stereo Differential Mode Input Configuration ............................................................................ 3
2 Non-Differential Mode Input Configuration ............................................................................... 3
3 Place Shunts Horizontally Across SCL and SDA ........................................................................ 3
4 Starting the TPA2054D4 Interface ......................................................................................... 5
5 TPA2054D4EVM Graphical User Interface ............................................................................... 6
6 Connect I
2
C Controls to JP3 ............................................................................................... 8
7 TPA2054D4EVM Schematic ............................................................................................... 9
8 TPA2054D4EVM – Top Layer ............................................................................................ 10
9 TPA2054D4EVM – Layer 2 .............................................................................................. 10
10 TPA2054D4EVM – Layer 3 ............................................................................................... 11
11 TPA2054D4EVM – Bottom Layer ........................................................................................ 11
List of Tables
1 Jumpers Default Setting .................................................................................................... 2
2 Test Points Information ..................................................................................................... 4
3 TPA2054D4EVM Parts List ............................................................................................... 12
The TPA2054D4EVM 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 TPA2054D4EVM ( evaluation module) is a complete, stand-alone audio board. It contains the
TPA2054D4 WCSP(YZK) Class-D audio subsystem.
All components and the EVM are lead free.
DirectPath is a trademark of Texas Instruments.
Windows is a trademark of Microsoft Corporation.
I
2
C is a trademark of Philips Electronics.
SLOU249 – April 2009 TPA2054D4EVM 1
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