Related Manuals for Texas Instruments TPA2008D2
Summary of Contents for Texas Instruments TPA2008D2
- Page 1 TPA2008D2 Stereo Filter Free Class D Audio Power Amplifier Evaluation Module User’s Guide July 2003 Mixed-Signal Products SLOU116...
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Page 2: Important Notice
TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions:... -
Page 3: Evm Important Notice
EVM IMPORTANT NOTICE Texas 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 EVALUATION PURPOSES ONLY 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 required design-, marketing-, and/or manufacturing-related protective considerations, including product safety measures typically found in the end product incorporating the goods. -
Page 4: Evm Warnings And Restrictions
EVM schematic located in the EVM User’s Guide. When placing measurement probes near these devices during operation, please be aware that these devices may be very warm to the touch. Copyright 2003, Texas Instruments Incorporated Mailing Address: Texas Instruments Post Office Box 655303... - Page 5 How to Use This Manual This document contains the following chapters: Chapter 1—Introduction Chapter 2—Operation Chapter 3—Reference 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.
- Page 6 TI audio evaluation modules. TPA2008D2 3-W STEREO CLASS-D AUDIO POWER AMPLIFIER (literature number SLOS413) This is the data sheet for the TPA2008D2 audio amplifier integrated circuit. FCC Warning This equipment is intended for use in a laboratory test environment only. It...
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Page 7: Table Of Contents
............... TPA2008D2 EVM Schematic TPA2008D2 EVM PCB Layers TPA2008D2 EVM Parts List DC Volume Table . - Page 8 Running Title—Attribute Reference Figures 1–1 The TI TPA2008D2 Audio Amplifier EVM Without Output Filter — Top View 1–2 The TI TPA2008D2 Audio Amplifier EVM Without Output Filter — Bottom View 2–1 Quick Start Platform Map ............
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Page 9: Introduction
This chapter provides an overview of the Texas Instruments (TI) TPA2008D2 stereo filter-free class-D audio amplifier evaluation module (SLOP392). It includes a list of EVM features, a brief illustrated description of the module, and a list of EVM specifications. Topic Feature Highlights . -
Page 10: Feature Highlights
Feature Highlights 1.1 Feature Highlights The TI TPA2008D2 audio amplifier evaluation module and the TI plug-n-play audio amplifier evaluation platform include the following features: TPA2008D2 Stereo 3-W Filter-Free Class-D Audio Power Amplifier Evaluation Module Class-D without output filter Internal depop circuitry to minimize transients in outputs... -
Page 11: The Ti Tpa2008D2 Audio Amplifier Evm Without Output Filter — Bottom View
The TPA2008D2 filter-free class-D stereo audio power amplifier evaluation module is a complete, 3-W per channel class-D stereo audio power amplifier that can operate without an output filter. It consists of the TI TPA2008D2 class-D stereo 3-W audio power amplifier IC along with a small number of other parts mounted on a circuit board that measures approximately 2-1/4 inches by 1-1/2 inches. -
Page 12: Tpa2008D2 Evm Specifications
TPA2008D2 EVM Specifications The platform has room for a single TPA2008D2 evaluation module and is a convenient vehicle for demonstrating TI’s audio power amplifier and related evaluation modules. The EVMs simply plug into the platform, which automatically provides power to the modules, interconnects them correctly, and connects them to a versatile array of standard audio input and output jacks and connectors. -
Page 13: Operation
The platform switch and jumper settings shown in Table 2–1 are typical for the TPA2008D2 EVM and causes the TPA2008D2 to shut down when a plug is in- serted into platform headphone jack J10. -
Page 14: 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 15: 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 TPA2008D2 module in platform socket U2, taking care to align the module pins correctly. 3) Use switch S2 to select or bypass the signal conditioning EVM (U1). -
Page 16: Quick Start List For Stand-Alone
14) Adjust the signal source level and potentiometer R3 as needed. 2.3 Quick Start List for Stand-Alone Follow these steps to use the TPA2008D2 EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the TPA2008D2 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 17 Figure 2–3. Quick Start for Stand-Alone Audio Input (Right) Audio Input (Left) Power supply 1) Ensure that all external power sources are set to OFF. 2) Connect an external regulated power supply set to 5 V to the module VDD and GND pins taking care to observe marked polarity.
- Page 18 Quick Start List for Stand-Alone The EVM should begin operation. 10) Adjust the signal source level and potentiometer R3 as needed. Operation...
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Page 19: Power Requirements
2.4 Power Requirements The TPA2008D2 audio power amplifier evaluation module can operate from any voltage between approximately 4.5 V and 5.5 V; however, the TPA2008D2 amplifier IC on the module is characterized for operation at 5 V. For best performance (highest output power with lowest distortion), the module should be operated at 5 V. - Page 20 Operation...
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Page 21: Reference
........TPA2008D2 EVM PCB Layers . -
Page 22: Tpa2008D2 Evm Schematic
TPA2008D2 EVM Schematic 3.1 TPA2008D2 EVM Schematic Figure 3–1. TPA2008D2 Filter-Free Class-D EVM Schematic Diagram LIN– 0.1 F LIN+ 0.1 F SHUTDOWN SHUTDOWN 120 k LOUT+ 10 F LOUT– 220 pF 120 k TPA2008D2 LINN RINN 0.1 F LINP RINP... -
Page 23: Tpa2008D2 Evm Pcb Layers
3.2 TPA2008D2 EVM PCB Layers Figure 3–2 and Figure 3–3 depict the TPA2008D2 EVM PCB layers. These drawings are not to scale. Gerber plots can be obtained from any TI sales office. Figure 3–2. TPA2008D2 EVM Top Assembly Figure 3–3. TPA2008D2 EVM Bottom Assembly... -
Page 24: Tpa2008D2 Evm Parts List
TPA2008D2 EVM Parts List 3.3 TPA2008D2 EVM Parts List Table 3–1. TPA2008D2 EVM Parts List Reference Description C1, C2, C3, Capacitor, 0.1 F, 5%, X7R, 16 V C5, C7, C8, Capacitor, 1 F, C9, C10 80%/–20%, Y5V, 10 V Capacitor, 220 pF, 5%,... -
Page 25: Dc Volume Table
2.19–2.3 2.31–2.4 2.41–2.52 2.53–2.63 2.64–2.75 2.76–2.87 2.88–2.98 2.99–3.1 3.11–3.22 3.23–3.33 3.34–3.47 3.48–3.69 3.70–V Note: See the TPA2008D2 data sheet, literature number SLOS413 for more information. Gain of Amplifier (dB) 0.31–0 –38 0.43–0.32 –37 0.54–0.44 –35 0.64–0.55 –33 0.75–0.65 –31 0.86–0.76 –29... - Page 26 Reference...
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