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1 Introduction

1.1 Description

1.2 EVM Specifications

User's Guide

SLOU172A – August 2004 – Revised January 2008

TPA4411 Audio Power Amplifier Evaluation Module

Contents

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

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

3 Reference ..................................................................................................................... 3

4 Related Documentation From Texas Instruments ....................................................................... 5

List of Figures

1 TPA4411EVM Schematic ................................................................................................... 3

2 Top Layer ..................................................................................................................... 4

3 Bottom Layer ................................................................................................................. 5

List of Tables

1 TPA4411EVM Bill of Materials ............................................................................................. 4

This section provides an overview of the Texas Instruments (TI) TPA4411 DirectPath™ stereo headphone

amplifier evaluation module. It includes a brief description of the module and a list of EVM specifications.

The TPA4411 is a DirectPath™ stereo headphone amplifier capable of delivering 80 mW/Ch without the

added output dc blocking capacitors. The TPA4411 EVM includes connections for input, power, ground,

pushbuttons, and a headphone jack for the outputs.

Supply voltage range, V

1.8 V to 4.5 V

Supply current, I

0.5 A, maximum

Continuous output power, P

, V

= 4.5 V, 16 Ω 80 mW

DirectPath is a trademark of Texas Instruments.

SLOU172A – August 2004 – Revised January 2008 TPA4411 Audio Power Amplifier Evaluation Module 1

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Summary of content (7 pages)

PAGE 1
User's Guide SLOU172A – August 2004 – Revised January 2008 TPA4411 Audio Power Amplifier Evaluation Module 1 2 3 4 Contents Introduction ................................................................................................................... Operation ..................................................................................................................... Reference .....................................................................................................................
PAGE 2
www.ti.com Operation 2 Operation This section describes how to operate the TPA4411EVM. 2.1 Quick-Start List for Stand-Alone Operation Use the following steps when operating the TPA4411EVM stand alone or when connecting the EVM into an existing circuit. 2.1.1 Power and Ground 1. Ensure that the external power sources are set to OFF. 2. Connect the power supply with a voltage between 1.8 V and 4.5 V to the EVM. Make sure to connect the ground connection first, and then connect the positive supply.
PAGE 3
www.ti.com Reference 3 Reference This section includes the EVM schematic, parts list, and board layout reference. 3.1 TPA4411EVM Schematic Figure 1. TPA4411EVM Schematic C6 10 mF VDD GND R1 121 kW SDL C7 (optional) JP1 C3 2.2 mF R2 121 kW NC16 17 16 18 SDL SGND INL NC12 NC4 OUTR OUTL 9 15 C1 1 mF IN_R 14 C2 1 mF 13 IN_L 12 11 OUT_R 10 6 C5 2.2 mF SVDD PVSS SVSS 5 X4 (test point) SDR U1 TPA4411 C1N NC8 4 PGND 7 3 INR 8 2 C1P NC6 1 PVDD 20 NC20 C4 2.
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www.ti.com Reference 3.2 TPA4411EVM Bill of Materials Table 1. TPA4411EVM Bill of Materials 3.3 Qty. Reference 2 C1, C2 2 Description SND Size Manufacturer/ Part Number Capacitor, ceramic, 1 µF, 10 V, X7R, ±10% 0603 TDK C1608X7R1C105K C3, C4, C5 Capacitor, ceramic, 2.2 µF, 6.3 V, X5R, ±20% 0603 TDK C1608X5R0J225M 1 C6 Capacitor, ceramic, 10 µF, 6.
PAGE 5
www.ti.com Related Documentation From Texas Instruments Figure 3. Bottom Layer C7 4 Related Documentation From Texas Instruments • • TI Plug-N-Play Audio Amplifier Evaluation Platform (literature number SLOU011) provides detailed information on the evaluation platform and its use with TI audio evaluation modules. TPA4411 80-mW DirectPath™ Stereo Headphone Driver (literature number SLOS430) This is the data sheet for the TPA4411 audio amplifier integrated circuit.
PAGE 6
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 7
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.