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Summary of Contents for Texas Instruments TPA102 MSOP
- Page 1 TPA102 MSOP Audio Power Amplifier Evaluation Module User’s Guide May 2001 Mixed-Signal Products SLOU022A...
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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 This document contains the following chapters: Chapter 1—Introduction Chapter 2—Quick Start Chapter 3—Details 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 Running Title—Attribute Reference 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.
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Page 5: Table Of Contents
............Using the TPA102 MSOP EVM With the Plug-N-Play Evaluation Platform 3.3.1... - Page 6 ............2–2 Platform Jumper and Switch Settings for the TPA102 MSOP EVM 3–1 TPA102 MSOP EVM Parts List .
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Page 7: Introduction
This chapter provides an overview of the Texas Instruments (TI) TPA102 MSOP audio amplifier evaluation module (SLOP125). It includes a list of EVM features, a brief illustrated description of the module, and a list of EVM specifications. Topic .......... -
Page 8: Features
Features 1.1 Features The TI TPA102 MSOP audio amplifier evaluation module and the TI plug-n-play audio amplifier evaluation platform include the following features: TPA102 MSOP stereo audio power amplifier evaluation module Dual channel, single-ended operation 150 mW output power into 8 2.5-V to 5.5-V operation... -
Page 9: Description
1.2 Description The TPA102 MSOP audio power amplifier evaluation module is a complete, low-power stereo audio power amplifier for high-fidelity line-level output, headphone, and small speaker applications. It consists of the TI TPA102 150-mW stereo audio power amplifier IC in a very small MSOP package, along with a small number of other parts mounted on a circuit board that is approximately one and a quarter inches square (Figure 1–1). - Page 10 Introduction...
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Page 11: Quick Start
The steps in this chapter can be followed to quickly prepare the TPA102 MSOP audio amplifier EVM for use. Using the TPA102 MSOP EVM 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. -
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 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 TPA102 MSOP module in platform socket U5, 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 TPA102 MSOP EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the TPA102 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: Details
..........The TPA102 MSOP Audio Power Amplifier Evaluation Module... -
Page 16: Precautions
Precautions 3.1 Precautions Power Supply Input Polarity and Maximum Voltage Always ensure that the polarity and voltage of the external power connected to V 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 17: Tpa102 Msop Evm
3.2 The TPA102 MSOP Audio Power Amplifier Evaluation Module The TPA102 MSOP audio power amplifier evaluation module is powered by a TPA102 150-mW stereo audio amplifier IC. It includes a shutdown control signal input with onboard switch and can drive either line-level outputs, 32- headphones, or 8- speakers. -
Page 18: The Ti Tpa102 Msop Audio Amplifier Evaluation Module
The TPA102 MSOP Audio Power Amplifier Evaluation Module 3.2.1 TPA102 Audio Amplifier IC The TPA102 audio amplifier IC is a CMOS device intended primarily for high-performance line-level output, headphone driver, and small speaker applications. It is supplied in a very small surface-mount MSOP package designed to operate from low supply voltages (between approximately 2.5 V... -
Page 19: Module Gain
3.2.2 Module Gain The TPA102 MSOP evaluation module has a set gain of 4 (inverting) for each channel. However, the gain can be adjusted to a maximum of approximately 10 (inverting) by changing the value of feedback resistors (R2 and R4, Figure 3–3). -
Page 20: Using The Tpa102 Msop Evm With The Plug-N-Play Evaluation Platform
Using the TPA102 MSOP EVM With the Plug-N-Play Evaluation Platform 3.3 Using the TPA102 MSOP EVM With the Plug-N-Play Evaluation Platform The TPA102 MSOP audio amplifier evaluation module is designed for use with the TI plug-n-play audio amplifier evaluation platform. It simply plugs into socket U5. -
Page 21: Signal Routing
Switch S3 is the source select for the stereo headphone output jack, J10. The headphone jack is capacitively coupled (via 470 F electrolytics. It can output either the signal from the the TPA102 MSOP headphone amplifier in socket U5, or the signal from power amplifiers installed in socket U2 or in sockets U3 and U4, as determined by the setting of headphone source select switch S3. -
Page 22: Shutdown
Using the TPA102 MSOP EVM With the Plug-N-Play Evaluation Platform 3.3.3 Shutdown The TPA102 MSOP EVM is equipped with a shutdown control input pin. When this input is tied to V operation and enters an ultralow-power state. When the EVM shutdown control input is tied to GND or allowed to float, amplifier operation resumes. -
Page 23: Power Requirements
Using the TPA102 MSOP EVM With the Plug-N-Play Evaluation Platform 3.3.4 Power Requirements The TPA102 MSOP audio power amplifier evaluation module can operate from a V The TI plug-n-play audio amplifier evaluation platform with a voltage regulator EVM installed on it can provide a regulated 3.3-V or 5-V V wide variety of unregulated V and 12 V, including an onboard 9 -V battery. -
Page 24: Inputs And Outputs
J10 to the output lines of either the headphone amplifier socket or the power amplifier sockets (Figure 3 – 5). When the TPA102 MSOP EVM output signal is routed to J10 by S3, signals output via J10 are returned to platform ground when a plug is inserted (Figure 3–... -
Page 25: Using The Tpa102 Msop Evm Stand-Alone
Note that the shutdown signal applied to the EVM SD pin must be able to supply enough current to overcome the pulldown resistor on the module (20 k ). 3.4.1 TPA102 MSOP EVM Connected as a Stereo Headphone Amplifier Figure 3–8. TPA102 MSOP EVM Connected as a Stereo Headphone Amplifier Shutdown Audio Input (Right) -
Page 26: Tpa102 Msop Audio Power Amplifier Evaluation Module Parts List
TPA102 MSOP Audio Power Amplifier Evaluation Module Parts List 3.5 TPA102 MSOP Audio Power Amplifier Evaluation Module Parts List Table 3–1. TPA102 MSOP EVM Parts List Ref. Description C1, C2, Capacitor, 1 F, C3, C5 80%/–20%, Non-polarized, SMD Capacitor, 10 F, 6.3 V,...
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