Texas Instruments TPA6043A4 User Manual
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Texas Instruments TPA6043A4 User Manual

Audio power amplifier evaluation module
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TPA6043A4 Audio Power Amplifier Evaluation Module
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Introduction
1.1
The TPA6043A4 evaluation module (EVM) consists of a single 2-W stereo speaker amplifier and 85-mW
DirectPath™ headphone amplifier complete with a small number of external components mounted on a
circuit board that can be used to drive speakers and headphones directly with external analog audio
sources as inputs. The TPA6043A4 also contains an LDO capable of outputting 3.3 V with a maximum
load of 120 mA.
DirectPath is a trademark of Texas Instruments.
SLOU204 - August 2007
Submit Documentation Feedback
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List of Figures
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Contents
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List of Tables
TPA6043A4 Audio Power Amplifier Evaluation Module
User's Guide
SLOU204 - August 2007
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Summary of Contents for Texas Instruments TPA6043A4

  • Page 1: Table Of Contents

    DirectPath™ headphone amplifier complete with a small number of external components mounted on a circuit board that can be used to drive speakers and headphones directly with external analog audio sources as inputs. The TPA6043A4 also contains an LDO capable of outputting 3.3 V with a maximum load of 120 mA.

  • Page 2: Introduction

    Introduction Figure 1. TI TPA6043A4 Audio Power Amplifier EVM – Top View TPA6043A4 EVM Specifications Supply voltage range, VDD 4.5 V to 5.5 V Supply current, IDD 1 A, maximum Speaker amplifier output power per channel, P : 4Ω, VDD = 5 V, THD+N=10% : 32 Ω, VDD = 5 V, THD+N=10%...

  • Page 3: Operation

    2.1.1 Speaker Amplifier Follow these steps to use the TPA6043A4 EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the EVM can be made by inserting stripped wire or using banana plugs for the power supply and output connections. The inputs accept standard RCA plugs.

  • Page 4: Gain Settings

    www.ti.com Operation Table 1. Gain Settings GAIN0 (J5) GAIN1 (J6) Amplifier Gain (dB) 15.6 21.6 OFF = Jumper removed; ON = Jumper installed 2.1.4 Power Up 1. Verify correct voltage and input polarity, and turn on the external power supplies. The EVM should begin operation.

  • Page 5: Schematic And Bill Of Materials

    Schematic and Bill of Materials Schematic and Bill of Materials TPA6043A4 EVM Schematic Figure 2. TPA6043A4 EVM Schematic SLOU204 – August 2007 List of Tables Submit Documentation Feedback...

  • Page 6: Top Side Layout

    Schematic and Bill of Materials TPA6043A4 EVM PCB Layers Figure 3. Top Side Layout K002 Figure 4. Bottom Side Layout List of Tables SLOU204 – August 2007 Submit Documentation Feedback...

  • Page 7: Description

    Schematic and Bill of Materials TPA6043A4 EVM Bill of Materials REF. DESCRIPTION SIZE PART NO. VENDOR NO. Capacitor, ceramic, 0.47-μF, ±10%, C1–C4 0603 C1608X5R1A474K Digi-Key/445-1320-2-ND X5R, 10-V Capacitor, ceramic, 1-μF, ±10%, X5R, C5–C12 0603 C1608X5R1A105KT Digi-Key/445-1321-2 10-V Capacitor, ceramic, 0.1-μF, ±10%,...
  • Page 8 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.
  • Page 9 TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products...

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