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Summary of Contents for Texas Instruments TPA3002D2EVM
- Page 1 TPA3002D2EVM 9 W Stereo Class D Audio Power Amplifier With DC Volume Control User’s Guide December 2002 SLOU151...
- Page 2 IMPORTANT NOTICE Texas 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 orders and should verify that such information is current and complete.
- Page 3 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 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. Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright 2002, Texas Instruments Incorporated...
- Page 5 Information About Cautions and Warnings 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.
- Page 6 Related Documentation From Texas Instruments Electrostatic Sensitive Devices This EVM contains components that can potentially be damaged by electrostatic discharge. Always transport and store the EVM in its supplied ESD bag when not in use. Handle using an antistatic wristband. Operate on an antistatic work surface. For more information on proper handling, refer to SSYA008.
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Page 7: Table Of Contents
............TPA3002D2EVM Parts List . - Page 8 ........... . 3–2 TPA3002D2EVM with External Headphone Amplifier Schematic .....
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Page 9: Introduction
Chapter 1 Introduction This chapter provides a brief description of the TPA3002D2EVM. Topic Page Description ........... -
Page 10: Description
Description 1.1 Description The TPA3002D2 audio power amplifier evaluation module is a 9-watt per channel class-D stereo audio power amplifier complete with a small number of external components mounted on a circuit board that measures approximately 2-1/4 inches by 1-3/4 inches (Figure 1–1 and Figure 1–2). The TPA3002D2 can be interfaced with the TPA6110A2 to provide additional headphone drive. -
Page 11: Tpa3002D2Evm Specifications
TPA3002D2EVM Specifications 1.2 TPA3002D2EVM Specifications Supply voltage range, V ........... . . - Page 13 Chapter 2 Operation This chapter describes how to operate the TPA3002D2EVM. Topic Page Quick Start List for Stand-Alone Operation ..... .
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Page 14: Quick Start List For Stand-Alone Operation
Quick Start List for Stand-Alone Operation 2.1 Quick Start List for Stand-Alone Operation Follow these steps to use the TPA3002D2 EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the EVM 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: Power Up
Quick Start List for Stand-Alone Operation the MODE pin is high. When the MODE pin is low, the MODEB pin drives high. If the MODEB pin is connected to the shutdown pin on an external TPA6110A2, the TPA6110A2 mutes when the class-D outputs are active. 2.1.6 Power Up 1) Verify correct voltage and input polarity and set the external power supply... - Page 16 Quick Start List for Stand-Alone Operation and VAROUTL to ground, if required. The 10-kΩ load resistor reduces feed-through audio when the amplifier is in the shutdown mode.
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Page 17: Reference
Chapter 3 Reference This chapter provides reference information for the TPA3002D2EVM. Topic Page TPA3002D2EVM Schematic ........ -
Page 18: Tpa3002D2Evm Schematic
TPA3002D2EVM Schematic 3.1 TPA3002D2EVM Schematic Figure 3–1. TPA3002D2EVM Schematic 1 nF 1 nF (Bead) (Bead) 10 µF PGND 10 nF 10 nF 0.1uF 0.1uF 120 kΩ AGND SHUTDOWN VCLAMPR 1 µF PGND MODEB RIN– RINN MODEB 1 µF MODE MODE... - Page 19 TPA3002D2EVM Schematic Figure 3–2. TPA3002D2 with External Headphone Amplifier Schematic BSRP BSLP PVCCR PVCCL PVCCL PVCCR LOUTP ROUTP ROUT+ LOUT+ ROUTP LOUTP PGNDR PGNDL PGNDR PGNDL LOUTN ROUTN ROUTN ROUT– LOUTN LOUT– PVCCR PVCCL PVCCR PVCCL BSRN BSLN Reference...
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Page 20: Evm Pcb Layers
EVM PCB Layers 3.2 EVM PCB Layers Figure 3–3. TPA3002D2EVM (Top Layer) Figure 3–4. TPA3002D2EVM (Bottom Layer) -
Page 21: Tpa3002D2Evm Parts List
TPA3002D2EVM Parts List 3.3 TPA3002D2EVM Parts List Table 3–1. TPA3002D2EVM Parts List Reference Description Size Mfg. Part # C1–C5 Capacitor, ceramic, 1.0µF, +80%/–20%, Y5V, 0603 Panasonic ECJ–1VF1A105Z 10 V Capacitor, ceramic, 220 pF, ±5%, 50 V 0603 Panasonic ECJ–1VC1H221J Capacitor, ceramic, 1.0 µF, +80%/–20%, Y5V,... -
Page 22: Dc Volume Control For Class-D Outputs (Out+ And Out-)
DC Volume Control for Class-D Outputs (OUT+ and OUT–) 3.4 DC Volume Control for Class-D Outputs (OUT+ and OUT–) Table 3–2. DC Volume Control for Class-D Outputs VOLTAGE ON THE VOLTAGE ON THE GAIN OF CLASS-D VOLUME PIN AS A VOLUME PIN AS A AMPLIFIER PERCENTAGE OF... -
Page 23: Dc Volume Control For Class-Ab Outputs (Varoutl And Varoutr)
DC Volume Control for Class-AB Outputs (VAROUTL and VAROUTR) 3.5 DC Volume Control for Class-AB Outputs (VAROUTL and VAROUTR) Table 3–3. DC Volume Control for Class-AB Outputs VAROUT_VOLUME (V) VAROUT_VOLUME (V) GAIN OF VAROUT AS A PERCENTAGE OF AS A PERCENTAGE OF AMPLIFIER VREF (INCREASEING VREF (DECREASING...
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