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User's Guide

SLOU123B–July 2002–Revised November 2009

TPA6203A1 Audio Power Amplifier Evaluation Module

The TPA6203A1 audio amplifier evaluation module is a complete, low-power single-channel audio power

amplifier. It consists of the TI TPA6203A1 1.25-W low-voltage audio power amplifier IC in a very small

MicroStar Junior™ BGA package, along with a small number of other parts mounted on a circuit board

that is approximately one and a quarter inches square.

Contents

1 Introduction .................................................................................................................. 1

2 Operation ..................................................................................................................... 2

3 Related Documentation From Texas Instruments ...................................................................... 7

4 Addendum ................................................................................................................... 8

List of Figures

1 Quick-Start Module Map ................................................................................................... 3

2 TPA6203A1 EVM Connected for Stereo BTL Output .................................................................. 4

3 TPA6203A1 EVM Schematic Diagram................................................................................... 5

4 TPA6203A1 EVM Top Layer, Revision A................................................................................ 6

5 TPA6203A1 EVM Top Layer, Revision B................................................................................ 7

6 TPA6203A1 EVM Bottom Layer, Revision A............................................................................ 7

7 TPA6203A1 EVM Bottom Layer, Revision B............................................................................ 7

List of Tables

1 TPA6203A1ZQVEVM Parts List .......................................................................................... 5

1 Introduction

This chapter provides an overview of the Texas Instruments (TI) TPA6203A1 MicroStar Junior™ BGA

audio amplifier evaluation module. It includes a list of EVM features, a brief illustrated description of the

module, and a list of EVM specifications.

1.1 Feature Highlights

The TI TPA6203A1 Low-Voltage Audio Power Amplifier Evaluation Module includes the following features:

• TPA6203A1 Low-Voltage Audio Power Amplifier Evaluation Module

• 2 mm × 2 mm MicroStar Junior™ BGA

• Fully differential amplifier

• Single-channel, bridge-tied load (BTL)

• 2.5-V to 5.5-V operation

• 1.25-W @ 10% THD output power into 8 Ω at 5 V, BTL

• Internal depop and quick start-up circuitry

• Internal thermal and short-circuit protection

• Module gain is set at 2 V/V

MicroStar Junior is a trademark of Texas Instruments.

SLOU123B–July 2002–Revised November 2009 TPA6203A1 Audio Power Amplifier Evaluation Module

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Summary of content (10 pages)

PAGE 1
User's Guide SLOU123B – July 2002 – Revised November 2009 TPA6203A1 Audio Power Amplifier Evaluation Module The TPA6203A1 audio amplifier evaluation module is a complete, low-power single-channel audio power amplifier. It consists of the TI TPA6203A1 1.25-W low-voltage audio power amplifier IC in a very small MicroStar Junior™ BGA package, along with a small number of other parts mounted on a circuit board that is approximately one and a quarter inches square. 1 2 3 4 Contents Introduction ..............
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Operation 1.2 www.ti.com Description The TPA6203A1 audio power amplifier evaluation module is a complete, low-power single-channel audio power amplifier. It consists of the TI TPA6203A1 1.25-W low-voltage audio power amplifier IC in a very small MicroStar Junior™ BGA package, along with a small number of other parts mounted on a circuit board that is approximately one and a quarter inches square. 1.
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Operation www.ti.com NOTE: Due to the very small size of the MicroStar Junior™ BGA IC package, the standard part number TPA6203A1 is replaced with the code AADI. Figure 1. Quick-Start Module Map • • • Power Supply 1. Ensure that all external power sources are set to off. 2. Connect an external regulated power supply set to 5 V to the module VDD and GND pins, taking care to observe marked polarity. Inputs and Outputs 1. Ensure that the signal source level is set to minimum. 2.
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Operation 2.2 2.2.1 www.ti.com References TPA6203A1 EVM Connected for Stereo BTL Output 5 VDC Right Audio Input (Right) 5 VDC External Mute Control (Active Low) Left Audio Input (Left) NOTE: Due to the very small size of the MicroStar Junior™ BGA IC package, the standard part number TPA6203A1 is replaced with the code AADI. Figure 2.
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Operation www.ti.com 2.2.2 TPA6203A1 EVM Schematic Diagram VDD 2.5 V to 5.5 V R3 100 kΩ GND C5 10 mF + S1 B1 SHUTDOWN SHUTDOWN VO − C1 R5 100 kΩ VDD C1 0.22 mF IN+ OUT− A3 IN+ VDD IN− VO + R1 20 kΩ C2 0.22 mF GND C2 C3 A1 B2 BYPASS C3 0.22 mF GND B3 C4 0.22 mF GND OUT+ R4 100 kΩ IN− R2 20 kΩ Figure 3. TPA6203A1 EVM Schematic Diagram NOTE: 2.2.3 Figure 3 is for both Revision A and Revision B EVMs. TPA6203A1 Audio Power Amplifier Evaluation Module Parts List Table 1.
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Operation 2.2.4 www.ti.com TPA6203A1 EVM PCB Layers The following illustrations depict the TPA6203A1 EVM PCB layers and silkscreen. These drawings are not to scale. Gerber plots can be obtained from any TI sales office. Figure 4. TPA6203A1 EVM Top Layer, Revision A Figure 5.
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Related Documentation From Texas Instruments www.ti.com Figure 6. TPA6203A1 EVM Bottom Layer, Revision A Figure 7. TPA6203A1 EVM Bottom Layer, Revision B 3 Related Documentation From Texas Instruments • TPA6203A1, 1.
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Addendum 4 www.ti.com Addendum This is a list of modification made to the TPA6203A1ZQV EVM Rev. A and appearing on Rev. B. The modifications do not affect the performance of the board.
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Evaluation Board/Kit Important Notice Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.