User's Guide
SLVUAM9–December 2015
TPA3250D2EVM
This user’s guide describes the operation of the evaluation module (TPA3250D2EVM) for the TPA3250D2
175-W Stereo/350-W mono peak power PurePath™ Ultra-HD Analog Input Pad Down Class-D Amplifier.
The user’s guide also provides design information, which includes schematic, Bill of Material, and PCB
layout. For questions and support go to the E2E forums (e2e.ti.com).
The main contents of this document are:
• Hardware descriptions and implementation
• Design information
Related documents:
• TPA3250D2 Data Sheet (SLASE99)
Contents
1 Hardware Overview.......................................................................................................... 2
1.1 TPA3250D2EVM Features ........................................................................................ 2
1.2 TPA3250D2EVM Frequency Adjust.............................................................................. 2
1.3 TPA3250D2EVM Single-Ended and Differential Input......................................................... 3
1.4 TPA3250D2EVM Clip Overtemperature and Fault Indicators ................................................ 4
2 TPA3250D2EVM Setup..................................................................................................... 5
2.1 TPA3250D2EVM Setup............................................................................................ 5
2.2 Hardware Requirements........................................................................................... 5
2.3 Hardware Default Setup BTL (2.0) ............................................................................... 6
3 Using TPA3250D2EVM in Different Output Configurations............................................................ 7
3.1 BTL Plus Two SE (2.1) Operation................................................................................ 7
3.2 PBTL (0.1) Output Operation...................................................................................... 7
3.3 Single-Ended (SE) Output (4.0) Operation...................................................................... 8
4 Board Layouts, Bill of Materials, and Schematic ........................................................................ 9
4.1 TPA3250D2EVM Board Layouts ................................................................................. 9
4.2 TPA3250D2EVM Board Dimension............................................................................. 11
4.3 Bill of Materials .................................................................................................... 12
4.4 TPA3250D2EVM Schematic..................................................................................... 16
List of Figures
1 TPA3250D2EVM............................................................................................................. 2
2 TPA3250D2EVM Connections............................................................................................. 5
3 TPA3250D2EVM Top Composite Assembly............................................................................. 9
4 TPA3250D2EVM Bottom Composite Assembly........................................................................ 10
5 TPA3250D2EVM Board Dimension...................................................................................... 11
6 TPA3250D2EVM Schematic.............................................................................................. 16
List of Tables
1 Frequency Adjust Master Mode Selection................................................................................ 3
2 Fault and Clip Overtemperature Status................................................................................... 4
3 Mode Selection Pins......................................................................................................... 7
4 Bill of Materials ............................................................................................................. 12
PurePath is a trademark of Texas Instruments.
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SLVUAM9–December 2015 TPA3250D2EVM
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