Manuale d’uso / di manutenzione del prodotto TPA301 del fabbricante Texas Instruments
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2001 Mixed-Signal Products User ’ s Guide SLOU014A.
IMPORT ANT NOTICE T exas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify , before placing orders, that information being relied on is current and complete.
iii Chapter Title — Attribute Reference Preface Related Documentation From T exas Instruments 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.
iv.
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 A301 Audio Amplifier Evaluation Module 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 1 Quick Start Platform Map 2-2 . . . . . . . . . . . . . . . . . . . . .
1-1 Introduction Introduction This chapter provides an overview of the T exas Instruments (TI ) TP A301 audio amplifier evaluation module (SLOP1 15). It includes a list of EVM features, a brief description of the module illustrated with a pictorial diagram, and a list of EVM specifications.
Feature Highlights 1-2 Introduction 1.1 Feature Highlights The TI TP A301 audio amplifier evaluation module and the TI plug-n-play audio amplifier evaluation platform include the following features: TP A301 Low-V oltage Audio Power Amplifier Evaluation Module Single channel, bridge-tied load (BTL) or single-ended operation 3.
Description 1-3 Introduction 1.2 Description The TP A301 audio power amplifier evaluation module is a complete, low-pow- er single-channel audio power amplifier .
1-4 Introduction.
2-1 Quick Start Quick Start The steps in this chapter can be followed to quickly prepare the TP A301 audio amplifier EVM for use. While using the TP A301 with the TI plug-n-play audio amplifier evalua.
Precautions 2-2 Quick Start 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 Quick Start 2.2 Quick Start List for Platform Use the following steps when using the TP A301 EVM with the TI plug-n-play audio amplifier evaluation platform (see the platform user ’ s guide, SLOU01 1, for additional details).
Quick Start List for Stand-Alone 2-4 Quick Start 2.3 Quick Start List for Stand-Alone Use the following steps to use the TP A301 EVM stand-alone or when connecting it into existing circuits or equipment.
3-1 Details Details This chapter provides details on the TP A301 IC, the evaluation module, and the steps in the Quick-Start List, additional application information, and a parts list for the TP A301 evaluation module. T opic Page 3.1 Precautions 3 – 2 .
Precautions 3-2 Details 3.1 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.
The TP A301 Audio Power Amplifier Evaluation Module 3-3 Details 3.2 The TP A301 Audio Power Amplifier Evaluation Module The TP A301 audio power amplifier evaluation module is powered by a TP A301 350-.
The TP A301 Audio Power Amplifier Evaluation Module 3-4 Details 3.2.1 TP A301 Audio Amplifier IC The TP A301 audio amplifier IC is a CMOS device intended primarily for bridge- tied load (BTL) operation in battery-powered applications.
The TP A301 Audio Power Amplifier Evaluation Module 3-5 Details In the single-ended mode, the amplifier inside the TP A301 IC that drives the OUT – line still operates and dissipates power even though it is not being used to help drive the load.
Using The TP A301 EVM With the Plug-N-Play Evaluation Platform 3-6 Details 3.3 Using The TP A301 EVM With the Plug-N-Play Evaluation Platform The TP A301 audio amplifier evaluation module was designed to be used with the TI plug-n-play audio amplifier evaluation platform.
Using The TP A301 EVM With the Plug-N-Play Evaluation Platform 3-7 Details 3.3.2 Signal Routing Signal flow on the platform is controlled by two signal routing switches, as shown in Figure 3 – 5.
Using The TP A301 EVM With the Plug-N-Play Evaluation Platform 3-8 Details 3.3.3 Muting The TP A301 EVM is equipped with a mute (shutdown) control input pin. When this input is tied to V DD , the TP A301 amplifier IC on the module shuts down and assumes an ultra-low power mode.
Power Requirements 3-9 Details 3.3.4 Power Requirements The TP A301 audio evaluation module can operate from any voltage between approximately 2.5 V and 5.5 V , however , the TP A301 amplifier IC on the module is characterized for operation at 3.3 V and 5 V .
Inputs and Outputs 3-10 Details 3.3.5 Inputs and Outputs The TI plug-n-play audio amplifier evaluation platform is equipped with several standard conectors for audio inputs and outputs.
Using The TP A301 EVM Stand-Alone 3-1 1 Details 3.4 Using The TP A301 EVM Stand-Alone Using the TP A301 audio power amplifier evaluation module stand-alone is much the same as using it with the platform. The same 2.5-V to 5.5-V power supply range and the isolated OUT+ and OUT – lines for BTL operation re- quirement exists.
Using The TP A301 EVM Stand-Alone 3-12 Details 3.4.2 TP A301 EVM Connected for Single-Ended Output Figure 3 – 9. TP A301 EVM Connected for Stereo Single-Ended Output 5 VDC Audio Input (Right) 5 VDC .
TP A301 Audio Power Amplifier Evaluation Module Parts List 3-13 Details 3.5 TP A301 Audio Power Amplifier Evaluation Module Parts List T able 3 – 1. TP A301 EVM Parts List Ref.
3-14 Details.
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 TPA301 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 TPA301 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Texas Instruments TPA301 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Texas Instruments TPA301 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Texas Instruments TPA301, 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 TPA301.
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 TPA301. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Texas Instruments TPA301 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.
