Instruction/ maintenance manual of the product TPA2008D2 Texas Instruments
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IMPORT ANT NOTICE T exas 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.
EVM IMPORT ANT NOTICE T exas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EV ALUA TION PURPOSES ONL Y and is not considered by TI to be fit for commercial use.
EVM W ARNINGS AND RESTRICTIONS It is important to operate this EVM within the supply voltage range specified in the user ’ s guide. The supply voltage range should be 4.5 V to 5.5 V . Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM.
iii Read This First Preface How to Use This Manual This document contains the following chapters: - Chapter 1 — Introduction - Chapter 2 — Operation - Chapter 3 — Reference Information About Cautions and Warnings This book may contain cautions and warnings.
Running Title — Attribute Reference iv Related Documentation From T exas Instruments J TI Plug-N-Play Audio Amplifier Evaluation Platform (literature number SLOU01 1) provides detailed information on the evaluation platform and its use with TI audio evaluation modules.
Running Title — Attribute Reference v Chapter Title — Attribute Reference Contents 1 Introduction 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Feature Highlights 1-2 .
Running Title — Attribute Reference vi Figures 1 – 1 The TI TP A2008D2 Audio Amplifier EVM Without Output Filter — T op View 1-3 . . . . . . . . . . . 1 – 2 The TI TP A2008D2 Audio Amplifier EVM Without Output Filter — Bottom View 1-3 . . . .
1-1 Introduction This chapter provides an overview of the T exas Instruments (TI) TP A2008D2 stereo filter-free class-D audio amplifier evaluation module (SLOP392). It includes a list of EVM features, a brief illustrated description of the module, and a list of EVM specifications.
Feature Highlights 1-2 Introduction 1.1 Feature Highlights The TI TP A2008D2 audio amplifier evaluation module and the TI plug-n-play audio amplifier evaluation platform include the following features.
Description 1-3 Introduction 1.2 Description The TP A2008D2 filter-free class-D stereo audio power amplifier evaluation module is a complete, 3-W per channel class-D stereo audio power amplifier that can operate without an output filter .
TP A2008D2 EVM Specifications 1-4 Introduction The platform has room for a single TP A2008D2 evaluation module and is a convenient vehicle for demonstrating TI ’ s audio power amplifier and related evaluation modules.
2-1 Operation Operation The steps in this chapter can be followed to quickly prepare the TP A2008D2 stereo filter-free class-D audio amplifier EVM for use.
Precautions 2-2 Operation 2.1 Precautions Power Supply Input Polarity and Maximum V oltage Always ensure that the polarity and voltage of the external power connected to V CC power input connector J1, J2, and/or V DD power input connector J6 are correct.
Quick Start List for Platform 2-3 Operation 2.2 Quick Start List for Platform Follow these steps when using the TP A2008D2 EVM with the TI plug-n-play audio amplifier evaluation platform (see the platform user ’ s guide, literature number SLOU01 1, for additional details).
Quick Start List for Stand-Alone 2-4 Operation - Evaluation Module Preparations 1 1) Use potentiometer R3 to set the volume. T urning R3 in the clockwise direction will increase the volume. See T able 3 – 1 for voltage levels on the VOLUME pin and corresponding gain settings.
Quick Start List for Stand-Alone 2-5 Operation Figure 2 – 3. Quick Start for Stand-Alone Audio Input (Right) Audio Input (Left) External Shut Down Control (active low) Right Left 5 V 7 5 5 4 4 2 8 6 - Power supply 1) Ensure that all external power sources are set to OFF .
Quick Start List for Stand-Alone 2-6 Operation The EVM should begin operation. 10) Adjust the signal source level and potentiometer R3 as needed..
Power Requirements 2-7 Operation 2.4 Power Requirements The TP A2008D2 audio power amplifier evaluation module can operate from any voltage between approximately 4.5 V and 5.5 V ; however , the TP A2008D2 amplifier IC on the module is characterized for operation at 5 V .
2-8 Operation.
3-1 Reference Reference This chapter contains the EVM schematic, PCB layers, parts list, and dc volume control table. T opic Page 3.1 TP A2008D2 EVM Schematic 3 – 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 TP A2008D2 EVM PCB Layers 3 – 3 .
TP A2008D2 EVM Schematic 3-2 Reference 3.1 TP A2008D2 EVM Schematic Figure 3 – 1. TP A2008D2 Filter-Free Class-D EVM Schematic Diagram 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 .
TP A2008D2 EVM PCB Layers 3-3 Reference 3.2 TP A2008D2 EVM PCB Layers Figure 3 – 2 and Figure 3 – 3 depict the TP A2008D2 EVM PCB layers. These drawings are not to scale. Gerber plots can be obtained from any TI sales office. Figure 3 – 2. TP A2008D2 EVM T op Assembly Figure 3 – 3.
TP A2008D2 EVM Parts List 3-4 Reference 3.3 TP A2008D2 EVM Parts List T able 3 – 1. TP A2008D2 EVM Parts List Reference Description Size EVM Qty . Manufacturer/ Part Number V endor/ Part Number C1, C2, C3, C4 Capacitor , 0.
DC V olume T able 3-5 Reference 3.4 DC V olume T able T able 3 – 2. DC V olume Control V oltage on VOLUME Pin (V) (Increasing or Fixed Gain) V oltage on VOLUME Pin (V) (Decreasing Gain) Gain of Amplifier (dB) 0 – 0.34 0.31 – 0 – 38 0.34 – 0.
3-6 Reference.
An important point after buying a device Texas Instruments TPA2008D2 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Texas Instruments TPA2008D2 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Texas Instruments TPA2008D2 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Texas Instruments TPA2008D2 you will learn all the available features of the product, as well as information on its operation. The information that you get Texas Instruments TPA2008D2 will certainly help you make a decision on the purchase.
If you already are a holder of Texas Instruments TPA2008D2, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Texas Instruments TPA2008D2.
However, one of the most important roles played by the user manual is to help in solving problems with Texas Instruments TPA2008D2. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Texas Instruments TPA2008D2 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
