Texas Instruments TPA122 MSOP User's Guide
Summary
The TPA122 Audio Amplifier Evaluation Module provides engineers with a robust platform for developing and prototyping mixed-signal audio circuitry. This user guide details the complete operation, specifications, and implementation steps for the highly efficient TPA122 150 mW stereo power amplifier IC. It covers everything from basic setup and safety precautions to advanced usage configurations, including stand-alone operation as a dedicated headphone amplifier. It is essential documentation for audio designers requiring reliable tools to test and validate their own low-power amplification designs.
Page 1 Text Content
User’s Guide
Mixed-Signal Products
SLOU025
Page Summary Contents For Texas Instruments TPA122 MSOP User's Guide
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User’s Guide Mixed-Signal Products SLOU025
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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...
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Preface 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...
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Running Title—Attribute Reference Contents Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1...
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Running Title—Attribute Reference Figures 1–1 The TI TPA122 MSOP Audio Amplifier Evaluation Module 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . 2–1 Quick Start Platform Map 2-2. . . . . . . ...
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Chapter 1 Introduction This chapter provides an overview of the Texas Instruments (TI) TPA122 MSOP Audio Amplifier Evaluation Module (SLOP125). It includes a list of EVM features, a brief description...
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Features 1.1 Features The TI TPA122 MSOP Audio Amplifier Evaluation Module and the TI Plug-N-Play Audio Amplifier Evaluation Platform include the following features: TPA122 MSOP Stereo Audio Power Amp...
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Description 1.2 Description The TPA122 MSOP Audio Power Amplifier Evaluation Module is a complete, low-power stereo audio power amplifier for high-fidelity line-level output, headphone, and small spea...
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1-4 Introduction
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Chapter 2 Quick Start The steps in this chapter can be followed to quickly prepare the TPA122 MSOP audio amplifier EVM for use. Using the TPA122 MSOP EVM with the TI Plug-N-Play Audio Amplifier Evalua...
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Precautions 2.1 Precautions Power Supply Input Polarity and Maximum Voltage Always ensure that the polarity and voltage of the external power connected to VCC power input connector J1, J2, and/or VDD ...
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Quick Start List for Platform 2.2 Quick Start List for Platform Follow these steps when using the TPA122 MSOP EVM with the TI Plug-N-Play Audio Amplifier Evaluation Platform (see the platform user’s g...
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Quick Start List for Stand-Alone 2.3 Quick Start List for Stand-Alone Follow these steps to use the TPA122 MSOP EVM stand-alone or when connecting it into existing circuits or equipment. Connections t...
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Chapter 3 Details This chapter provides details on the TPA122 IC, the evaluation module, the steps in the Quick-Start List, additional application information, and a parts list for the TPA122 MSOP eva...
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Precautions 3.1 Precautions Power Supply Input Polarity and Maximum Voltage Always ensure that the polarity and voltage of the external power connected to VCC power input connector J1, J2, and/or VDD ...
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The TPA122 MSOP Audio Power Amplifier Evaluation Module 3.2 The TPA122 MSOP Audio Power Amplifier Evaluation Module The TPA122 MSOP Audio Power Amplifier Evaluation Module is powered by a TPA122 150-m...
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The TPA122 MSOP Audio Power Amplifier Evaluation Module 3.2.1 TPA122 Audio Amplifier IC The TPA122 audio amplifier IC is a CMOS device intended primarily for high-performance line-level output, headph...
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The TPA122 MSOP Audio Power Amplifier Evaluation Module 3.2.2 Module Gain The TPA122 MSOP evaluation module has a set gain of 4 (inverting) for each channel. However, the gain can be adjusted to a max...
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Using The TPA122 MSOP EVM With the Plug-N-Play Evaluation Platform 3.3 Using The TPA122 MSOP EVM With the Plug-N-Play Evaluation Platform The TPA122 MSOP Audio Amplifier Evaluation Module is designed ...
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Using The TPA122 MSOP EVM With the Plug-N-Play Evaluation Platform 3.3.2 Signal Routing Signal flow on the platform is controlled by two signal routing switches, as shown in Figure 3–5. Figure 3–5. Pl...
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Using The TPA122 MSOP EVM With the Plug-N-Play Evaluation Platform 3.3.3 Shutdown The TPA122 MSOP EVM is equipped with a shutdown control input pin. When this input is tied to VDD, the TPA122 amplifie...
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Using The TPA122 MSOP EVM With the Plug-N-Play Evaluation Platform 3.3.4 Power Requirements The TPA122 MSOP Audio Power Amplifier Evaluation Module can operate from a VDD voltage between approximately...
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Using The TPA122 MSOP EVM With the Plug-N-Play Evaluation Platform 3.3.5 Inputs and Outputs The TI Plug-N-Play Audio Amplifier Evaluation Platform is equipped with several standard conectors for audio...
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Using The TPA122 MSOP EVM Stand-Alone 3.4 Using The TPA122 MSOP EVM Stand-Alone Using the TPA122 MSOP Audio Power Amplifier Evaluation Module stand-alone is much the same as using it with the platform...
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TPA122 MSOP Audio Power Amplifier Evaluation Module Parts List 3.5 TPA122 MSOP Audio Power Amplifier Evaluation Module Parts List Table 3–1. TPA122 MSOP EVM Parts List EVM Manufacturer/ Ref. Descripti...
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 26 |
| File Size | 145.32 KB |
| Published | July 12, 2026 |
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Frequently Asked Questions
What is the required power supply range for the TPA122 EVM?
The TPA122 MSOP EVM requires a 2.5 VDC to 5.5 VDC power supply.
If I use the standard part number TPA122, what should I use instead?
Due to the very small size of the MSOP IC package, the standard part number TPA122 is replaced with the code TIAAE.
Does connecting a plug affect the ground signal for the TPA122?
Signals output via J10 are returned to platform ground when a plug is inserted.
What crucial warning applies to using this equipment?
This equipment is intended for use in a laboratory test environment only, and its operation may cause interference with radio communications.