Instruction/ maintenance manual of the product TPA0243 Texas Instruments
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December 2000 Mixed-Signal Products User ’ s Guide SLOU099.
IMPORT ANT NOTICE T exas 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.
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.
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Running Title—Attribute Reference v Contents Contents 1 Introduction 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Feature Highlights 1-2 . . . . . .
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1-1 Introduction Introduction This chapter provides an overview of the T exas Instruments (TI) TP A0243 audio amplifier evaluation module (SLOP269). 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 A0243 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 A0243 audio power amplifier evaluation module is a complete 2-watt mono audio power amplifier with stereo headphone drive.
1-4 Introduction.
2-1 Operation Quick start lists in this chapter contain steps that can be followed to quickly prepare the TI plug-n-play audio amplifier evaluation platform for use with the TP A0243 audio amplifier EVM, or to connect the TP A0243 audio amplifier EVM for stand-alone operation.
2-2 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.
2-3 2.2 Quick Start List for Platform Follow these steps when using the TP A0243 EVM with the TI plug-n-play audio amplifier evaluation platform (see the platform user ’s guide, SLOU01 1, for additional details). T able 2–1 shows typical platform jumper and switch settings and numbered callouts for selected steps appear in Figure 2–1.
2-4 2.3 Quick Start List for Stand-Alone Follow these steps to use the TP A0243 EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the TP A0243 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.
2-5 2.4 Stand-Alone Connection Diagrams The power supply range is 2.5 V to 5.5 V and isolated RO/MO+ and LO/MO– lines for BTL operation are required. Note that the source of any shutdown signal applied to the EVM SHUTDOWN pin must be able to sink the current flowing through the pullup resistor on the module (100 k Ω ) when the pin is held low .
2-6 2.4.2 TP A0243 EVM Connected for Single-Ended Stereo Headphone Output Figure 2–4 shows a TP A0243 EVM connected for single-ended stereo headphone operation.
2-7 2.5 Reference This section includes the TP A0243 EVM schematic, the EVM parts list, and the module PCB layers. 2.5.1 EVM Schematic Figure 2–5 shows the TP A0243 EVM schematic.
2-8 2.5.2 EVM Parts List T able 2–2 is the TP A0243 EVM parts list. T able 2–2. TP A0243 EVM Parts List Ref. Description Size EVM Qty . Manufacturer/ Part Number V endor Number C1, C4 Capacitor , 1 µ F @ 16 V , +80%/–20%, nonpolarized 1206 2 Murata GRM42-6Y5V105Z16BL Arrow GRM426Y5V105Z 016 C2, C5, C6 Capacitor , 0.
2-9 2.5.3 Module PCB Layers The following illustrations depict the TP A0243 EVM PCB layers and silkscreen. These drawings are not to scale. Gerber plots can be obtained from any TI Sales Office.
2-10 Figure 2–8. TP A0243 EVM Bottom Layer.
An important point after buying a device Texas Instruments TPA0243 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Texas Instruments TPA0243 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Texas Instruments TPA0243 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Texas Instruments TPA0243 you will learn all the available features of the product, as well as information on its operation. The information that you get Texas Instruments TPA0243 will certainly help you make a decision on the purchase.
If you already are a holder of Texas Instruments TPA0243, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Texas Instruments TPA0243.
However, one of the most important roles played by the user manual is to help in solving problems with Texas Instruments TPA0243. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Texas Instruments TPA0243 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
