Manuale d’uso / di manutenzione del prodotto TPA2008D2 del fabbricante 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.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Texas Instruments TPA2008D2 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Texas Instruments TPA2008D2 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Texas Instruments TPA2008D2 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Texas Instruments TPA2008D2 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Texas Instruments TPA2008D2, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Texas Instruments TPA2008D2.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Texas Instruments TPA2008D2. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Texas Instruments TPA2008D2 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
