Texas Instruments TPA741 MSOP User Manual

Texas Instruments TPA741 MSOP User Manual

Audio power amplifier evaluation module

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TPA741 MSOP
Audio Power Amplifier
Evaluation Module
User's Guide
November 2000
Mixed-Signal Products
SLOU086

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Summary of Contents for Texas Instruments TPA741 MSOP

  • Page 1 TPA741 MSOP Audio Power Amplifier Evaluation Module User’s Guide November 2000 Mixed-Signal Products SLOU086...
  • Page 2 IMPORTANT NOTICE Texas 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. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent infringement, and limitation of liability.
  • Page 3 The information in a caution or a warning is provided for your protection. Please read each caution and warning carefully. 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.
  • Page 4 FCC Warning FCC Warning This equipment is intended for use in a laboratory test environment only. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rules, which are designed to provide reasonable protection against radio frequency interference.
  • Page 5: Table Of Contents

    ............2–2 Platform Jumper and Switch Settings for the TPA741 MSOP EVM ....
  • Page 6 Running Title—Attribute Reference...
  • Page 7: Introduction

    Chapter 1 Introduction This chapter provides an overview of the Texas Instruments (TI) TPA741 MSOP audio amplifier evaluation module (SLOP343). It includes a list of EVM features, a brief description of the module illustrated with a pictorial diagram, and a list of EVM specifications.
  • Page 8: Feature Highlights

    Feature Highlights 1.1 Feature Highlights The TI TPA741 MSOP audio amplifier evaluation module and the TI plug-n-play audio amplifier evaluation platform include the following features: TPA741 Low-Voltage Audio Power Amplifier Evaluation Module Single channel, bridge-tied load (BTL) 2.5-V and 5.5-V operation 700-mW output power into 8 Ω...
  • Page 9: Description

    The platform, which has room for a pair of TPA741 MSOP evaluation modules, is a convenient vehicle for demonstrating TI’s audio power amplifier and related evaluation modules.
  • Page 10 Introduction...
  • Page 11: Operation

    The platform switch and jumper settings shown in Table 2–1 are typical for the TPA741 MSOP EVM. They cause the TPA741 amplifier IC on the EVM to shut down when a plug is inserted into platform headphone jack J10.
  • Page 12: Precautions

    Precautions 2.1 Precautions Power Supply Input Polarity and Maximum Voltage Always ensure that the polarity and voltage of the external power connected to V power input connector J1, J2, and/or V power input connector J6 are correct. Overvoltage or reverse-polarity power applied to these terminals can open onboard soldered-in fuses and cause other damage to the platform, installed evaluation modules, and/or the power source.
  • Page 13: Quick Start List For Platform

    1) Ensure that all external power sources are set to off and that the platform power switch S1 is set to off. 2) Install a TPA741 MSOP module in platform sockets U3 and U4 for stereo operation (or a module in either U3 or U4 for single channel operation), taking care to align the module pins correctly.
  • Page 14: Quick Start List For Stand-Alone

    Quick Start List for Stand-Alone 2.3 Quick Start List for Stand-Alone Follow these steps to use the TPA741 MSOP EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the TPA741 MSOP module header pins can be made via individual sockets, wire-wrapping, or soldering to the pins, either on the top or the bottom of the module circuit board.
  • Page 15: References

    References 2.4 References 2.4.1 TPA741 MSOP EVM Connected for BTL Output Figure 2–3. TPA741 MSOP EVM Connected for Stereo BTL Output 5 VDC V DD GND Shutdown U1 † OUT– Right OUT+ TEXAS INSTRUMENTS Audio IN– Input SLOP343 (Right) TPA741 MSOP EVM...
  • Page 16: Tpa741 Msop Audio Power Amplifier Evaluation Module Parts List

    TPA741 MSOP Audio Power Amplifier Evaluation Module Parts List 2.4.2 TPA741 MSOP EVM Schematic Diagram Figure 2–4. TPA741 MSOP EVM Schematic Diagram 2.5 V to 5.5 V 10 µF Shutdown Shutdown O – Bypass 20 kΩ OUT– 1 µF 39 kΩ...
  • Page 17: Tpa741 Msop Evm Pcb Layers

    TPA741 MSOP EVM PCB Layers 2.4.4 TPA741 MSOP EVM PCB Layers The following illustrations depict the TPA741 EVM PCB layers and silkscreen. These drawings are not to scale. Gerber plots can be obtained from ant TI sales office. Figure 2–5. TPA741 EVM PCB Figure 2–6.
  • Page 18: Tpa741 Evm Top Layer

    TPA741 MSOP EVM PCB Layers Figure 2–7. TPA741 EVM Top Layer Figure 2–8. TPA741 EVM Bottom Layer Operation...

This manual is also suitable for:

Slop343

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