Msop audio power amplifier evaluation module (20 pages)
Summary of Contents for Texas Instruments TPA741 MSOP
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TPA741 MSOP Audio Power Amplifier Evaluation Module User’s Guide November 2000 Mixed-Signal Products SLOU086...
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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.
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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.
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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.
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.
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...
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.
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.
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.
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.
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.
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.
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