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Texas Instruments TAP6203A1 manual

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Table of contents for the manual

  • Page 1

    July 2002 Mixed-Signal Products        User ’ s Guide SLOU123A[...]

  • Page 2

    IMPORT ANT NOTICE T exas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orde[...]

  • Page 3

    EVM IMPORT ANT NOTICE T exas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EV ALUA TION PURPOSES ONL Y and is not considered by TI to be fit for commercial use. As such, the goods being provided may not be complete in terms of[...]

  • Page 4

    EVM W ARNINGS AND RESTRICTIONS It is important to operate this EVM within the supply voltage range of 2.5 V to 5.5 V . Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions concerning the input range, please contact a TI field representative prior to connecting the input pow[...]

  • Page 5

    Information About Cautions and Warnings iii Preface Read This First Information About Cautions and Warnings This book may contain cautions and warnings. This is an example of a caution statement. A caution statement describes a situation that could potentially damage your software or equipment. This is an example of a warning statement. A warning s[...]

  • Page 6

    FCC Warning iv 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 [...]

  • Page 7

    Contents v Contents 1 Introduction 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Feature Highlights 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Description 1-3 . . . . . [...]

  • Page 8

    Contents vi[...]

  • Page 9

    1-1 Introduction Introduction This chapter provides an overview of the T exas Instruments (TI) TP A6203A1 MicroStar Junior  BGA audio amplifier evaluation module (SLOP369). It includes a list of EVM features, a brief illustrated description of the module, and a list of EVM specifications. T opic Page 1.1 Feature Highlights 1–2 . . . . . . . . [...]

  • Page 10

    Feature Highlights 1-2 1.1 Feature Highlights The TI TP A6203A1 audio amplifier evaluation module and the TI plug-n-play audio amplifier evaluation platform include the following features: - TP A6203A1 Low-V oltage Audio Power Amplifier Evaluation Module J 2 mm x 2 mm MicroStar Junior  BGA J Fully differential amplifier J Single channel, bridge-[...]

  • Page 11

    Description 1-3 Introduction 1.2 Description The TP A6203A1 audio power amplifier evaluation module is a complete, low-power single-channel audio power amplifier . It consists of the TI TP A6203A1 1.25-W low-voltage audio power amplifier IC in a very small MicroStar Junior  BGA package, along with a small number of other parts mounted on a circu[...]

  • Page 12

    TP A6203A1 EVM Specifications 1-4 related evaluation modules. The EVMs simply plug into the platform, which automatically provides power to the modules, interconnects them correctly , an d connects them to a versatile array of standard audio input and output jacks and connectors. Easy-to-use configuration controls allow the platform and EVMs to qui[...]

  • Page 13

    2-1 Operation Operation Follow the steps in this chapter to prepare the TP A6203A1 audio amplifier EVM for use. Using the TP A6203A1 EVM with the TI plug-n-play audio amplifier ev al u a t i o n p l a t f o r m i s a q u ick and easy way to connect power , signal and control inputs, and signal outputs to the EVM, using standard connectors. However [...]

  • Page 14

    Precautions 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. Overvoltage or reverse-polarity power applied to these terminals can open onboard soldered-in fuses and c[...]

  • Page 15

    Quick Start List for Platform 2-3 Operation 2.2 Quick Start List for Platform Follow these steps when using the TP A6203A1 EVM with the TI plug-n-play audio amplifier evaluation platform (see the platform user ’ s guide, SLOU01 1, for additional details). Numbered callouts for selected steps are shown in Figure 2 – 1. - Platform preparations 1)[...]

  • Page 16

    Quick Start List for Stand-Alone 2-4 2.3 Quick Start List for Stand-Alone Follow these steps to use the TP A6203A1 EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the TP A6203A1 module header pins can be made via individual sockets, wire-wrapping, or soldering to the pins, either on the top or the bottom of[...]

  • Page 17

    Quick Start List for Stand-Alone 2-5 Operation 5) Connect the SHUTDOWN pin through a normally open switch to GND. 6) Connect an 8- Ω – 32- Ω speaker to the module OUT+ and OUT – pins. - Power Up 7) V erify correct voltage and input polarity and set the external power supply to on. The EVM begins operation. 8) Adjust the signal source level [...]

  • Page 18

    References 2-6 2.4 References 2.4.1 TP A6203A1 EVM Connected for Stereo BTL Output Figure 2 – 3. TP A6203A1 EVM Connected for Stereo BTL Output Audio Input (Left) External Mute Control Right Audio Input (Right) 5 VDC Left 5 VDC † Due to the very small size of the MicroStar Junior  BGA IC package, the standard part number TP A6203A1 is replac[...]

  • Page 19

    TP A6203A1 Audio Power Amplifier Evaluation Module Parts List 2-7 Operation 2.4.2 TP A6203A1 EVM Schematic Diagram Figure 2 – 4. TP A6203A1 EVM Schematic Diagram C3 0.22 µ F C2 0.22 µ F R5 100 k Ω IN – SHUTDOWN S1 OUT – GND OUT+ R4 100 k Ω R2 20 k Ω C5 10 µ F C4 0.22 µ F SHUTDOWN BYP ASS IN+ IN – V O – GND V DD V O+ A1 B2 A3 B3 [...]

  • Page 20

    TP A6203A1 EVM PCB Layers 2-8 2.4.4 TP A6203A1 EVM PCB Layers The following illustrations depict the TP A6203A1 EVM PCB layers and silks- creen. These drawings are not to scale. Gerber plots can be obtained from any TI sales office. Figure 2 – 5. TP A6203A1 EVM T op Layer[...]

  • Page 21

    TP A6203A1 EVM PCB Layers 2-9 Operation Figure 2 – 6. TP A6203A1 EVM Bottom Layer[...]

  • Page 22

    2-10[...]