Manuale d’uso / di manutenzione del prodotto TPA0202 del fabbricante Texas Instruments
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May 1998 Mixed-Signal Products User ’ s Guide SLOU016.
IMPORT ANT NOTICE T exas Instruments (TI) reserves the right to make changes to its products or to discontinue any semiconductor product or service without notice, and advises its customers to obtain the latest version of relevant information to verify , before placing orders, that the information being relied on is current.
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.
If Y ou Need Assistance iv If Y ou Need Assistance. . . If you want to. . . Do this. . . Request more information about T exas Instruments mixed signal products Call the PIC † hotline: (972) 644–5580 Or send a fax to the PIC: (972) 480–7800 Or write to: T exas Instruments Incorporated Product Information Center , MS 3123 P .
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 A0202 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 A0202 Audio Amplifier Evaluation Module (SLOP202). 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 A0202 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 A0202 Stereo 2-W Audio Power Amplifier Evaluation Module is a complete, 2-W att per channel stereo audio power amplifier .
TP A0202 EVM Specifications 1-4 Introduction 1.3 TP A0202 EVM Specifications Supply voltage range, V DD 3 V to 5.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Supply current, I DD 2 A max . . . . .
2-1 Quick Start Quick Start The steps in this chapter can be followed to quickly prepare the TP A0202 audio amplifier EVM for use. Using the TP A0202 with the TI Plug-N-Play Audio Amplifier Evaluation Platform is a quick and easy way to connect power , signal and control inputs, and signal outputs to the EVM using standard connectors.
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 Follow these steps when using the TP A0202 EVM with the TI Plug-N-Play Au- dio Amplifier Evaluation Platform (see the platform user ’ s guide, SLOU01 1, for additional details).
Quick Start List for Platform 2-4 Quick Start Evaluation Module Preparations Figure 2–2. Module Preparation GND ROUT+ HP/L* ROUT– SE/BTL* S7 MUTE GND LOUT– LOUT+ S2 C5 C4 R1 R3 C1 C2 C12 L VDD GND R5 GND GND LIN LHP C3 R4 R2 C10 C9 RVDD GND C8 R9 R7 R10 R8 C7 C6 RHP RIN GND GND R12 R13 S3 S4 S5 S6 R1 1 C1 1 + D1 TP A0202 SAMPLE EVM Lit.
Quick Start List for Stand-Alone 2-5 Quick Start 2.3 Quick Start List for Stand-Alone Follow these steps to use the TP A0202 EVM stand-alone or when connecting it into existing circuits or equipment.
Quick Start List for Stand-Alone 2-6 Quick Start Evaluation Module Preparations 6) T o have the module amplifier IC enter the shutdown mode when the module mute control input is activated, set shutdown jumper S1 to ON . T o have the amplifier IC only mute when the module mute control input is activated, set shutdown jumper S1 to OFF .
3-1 Details Details This chapter provides details on the TP A0202 IC, the evaluation module, and the steps in the Quick-Start List, additional application information, and a parts list for the TP A0202 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 A0202 Audio Power Amplifier Evaluation Module 3-3 Details 3.2 The TP A0202 Audio Power Amplifier Evaluation Module The TP A0202 Audio Power Amplifier Evaluation Module is powered by a TP A0202 stereo power amplifier capable of delivering greater than 2 W of continuous power per channel into 3- Ω loads.
The TP A0202 Audio Power Amplifier Evaluation Module 3-4 Details Figure 3–3. TP A0202 EVM Schematic Diagram GND/HS GND/HS S2 NC NC ROUT+ LOUT+ RLINE IN LLINE IN HP/LINE MUTE OUT ROUT– LOUT– SE/B.
The TP A0202 Audio Power Amplifier Evaluation Module 3-5 Details Figure 3–4. TP A0202 Amplifier IC MUX MUX SE/BTL MUX The IC includes two separate amplifier channels, each of which can operate in either the bridged-tied load (BTL) mode or the single-ended mode as selected by the SE/BTL pin.
The TP A0202 Audio Power Amplifier Evaluation Module 3-6 Details 3.2.4 SIngle-Ended Operation For single-ended operation, the module SE/BTL control input pin must be held high. The speaker (or headphone) load is connected to the module OUT+ output pin through a coupling capacitor , and to platform/system ground.
Using The TP A0202 EVM With the Plug-N-Play Evaluation Platform 3-7 Details 3.3 Using The TP A0202 EVM With the Plug-N-Play Evaluation Platform The TP A0202 Audio Amplifier Evaluation Module was designed to be used with the TI Plug-N-Play Audio Amplifier Evaluation Platform.
Using The TP A0202 EVM With the Plug-N-Play Evaluation Platform 3-8 Details 3.3.2 TP A0202 Module Jumper Settings and Switches The TP A0202 EVM is equipped with several pushbutton SPST switches and jumpers that act as SPST switches to allow module operation to be modified to suit various requirements.
Using The TP A0202 EVM With the Plug-N-Play Evaluation Platform 3-9 Details 3.3.2.1 S1 — Shutdown Jumper T o have the module amplifier IC enter the shutdown mode when the module mute control input is activated, set shutdown jumper S1 to ON.
Using The TP A0202 EVM With the Plug-N-Play Evaluation Platform 3-10 Details 3.3.2.5 S5 — VDD Bridge Jumper Jumper S5 connects the module L V DD power supply line to the RV DD power supply line.
Using The TP A0202 EVM With the Plug-N-Play Evaluation Platform 3-1 1 Details 3.3.3 Signal Routing Signal flow on the platform is controlled by two signal routing switches, as shown in Figure 3 – 5.
Using The TP A0202 EVM With the Plug-N-Play Evaluation Platform 3-12 Details 3.3.4 Mute/Mode The TP A0202 EVM is equipped with a mute control input pin. When this input is tied to V DD , the TP A0202 amplifier IC on the module enters the mute mode and dissipates very little power .
Using The TP A0202 EVM With the Plug-N-Play Evaluation Platform 3-13 Details 3.3.4.2 Mute/Mode Select (JP6) A 3-pin jumper header (JP6) on the platform, functioning as an SPDT switch, routes the control signal from the headphone jack to either the mute control input pin or the mode control input pin of the evaluation module.
Power Requirements 3-14 Details 3.3.5 Power Requirements The TP A0202 Audio Power Amplifier Evaluation Module can operate from any voltage between approximately 3 V and 5.5 V ; however , the TP A0202 amplifier IC on the module is characterized for operation at 3.
Inputs and Outputs 3-15 Details 3.3.6 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 A0202 EVM Stand-Alone 3-16 Details 3.4 Using The TP A0202 EVM Stand-Alone Using the TP A0202 Audio Power Amplifier Evaluation Module stand-alone is much the same as using it with the platform. The same 3-V to 5.5-V power supply range and the isolated OUT+ and OUT– lines for BTL operation requirement exists.
Using The TP A0202 EVM Stand-Alone 3-17 Details 3.4.2 TP A0202 EVM Connected for Single-Ended Output Figure 3–10. TP A0202 EVM Connected for Stereo Single-Ended Output 5 V 33 µ F – 1000 µ F + + .
TP A0202 Audio Power Amplifier Evaluation Module Parts List 3-18 Details 3.5 TP A0202 Audio Power Amplifier Evaluation Module Parts List T able 3–1. TP A0202 EVM Parts List Ref.
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 TPA0202 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 TPA0202 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Texas Instruments TPA0202 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Texas Instruments TPA0202 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Texas Instruments TPA0202, 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 TPA0202.
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 TPA0202. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Texas Instruments TPA0202 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.
