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Summary of Contents for Texas Instruments TPA3004D2EVM
- Page 1 TPA3004D2EVM 12 W Stereo Class D Audio Power Amplifier With DC Volume Control User’s Guide May 2003 SLOU158A...
- 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 2003, 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
........... . 3–2 TPA3004D2EVM With External Headphone Amplifier Schematic .... - Page 8 viii...
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Page 9: Introduction
Chapter 1 Introduction This chapter provides a brief description of the TPA3004D2EVM. Topic Page Description ........... -
Page 10: Description
Description 1.1 Description The TPA3004D2 audio power amplifier evaluation module is a 12-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 TPA3004D2 can be interfaced with the TPA6110A2 to provide additional headphone drive. -
Page 11: Tpa3004D2Evm Specifications
TPA3004D2EVM Specifications 1.2 TPA3004D2EVM Specifications Supply voltage range, V ........... . -
Page 13: Operation
Chapter 2 Operation This chapter describes how to operate the TPA3004D2EVM. Topic Page Quick Start List for Stand-Alone Operation ..... . -
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 TPA3004D2EVM 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 The absolute maximum voltage on this terminal is 5.5 V. Note: Do not leave the FADE pin floating. The TPA3004D2EVM connects the FADE pin to ground. If the fade function is to be disabled, unsolder the pin and lift it off the module circuit board. Solder a wire to the pin and apply the necessary voltage for the desired function.
- Page 16 Quick Start List for Stand-Alone Operation Setting Maximum Headphone Volume 4) Set the maximum possible VAROUT volume by adjusting P2. Turning P2 in the clockwise direction sets the limit to a higher volume. Turning P2 in the counterclockwise direction lowers the VAROUT volume limit. Refer to Table 3–3 in the Reference section for volume control settings.
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Page 17: Reference
Chapter 3 Reference This chapter provides reference information for the TPA3004D2EVM. Topic Page TPA3004D2EVM Schematic ........ - Page 18 TPA3004D2EVM Schematic 3.1 TPA3004D2EVM Schematic Figure 3–1. TPA3004D2EVM Schematic 1 nF 1 nF (Bead) (Bead) 10 µF PGND 10 nF 10 nF 0.1uF 0.1uF 0 Ω 0 Ω 120 kΩ AGND SHUTDOWN VCLAMPR 1 µF PGND RIN– RINN MODEB MODE_OUT 1 µF...
- Page 19 TPA3004D2EVM Schematic Figure 3–2. TPA3004D2 With External Headphone Amplifier Schematic BSRP BSLP PVCCR PVCCL PVCCL PVCCR LOUTP ROUTP ROUT+ LOUT+ ROUTP LOUTP PGNDR PGNDL PGNDR PGNDL ROUTN LOUTN 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. TPA3004D2EVM (Top Layer) Figure 3–4. TPA3004D2EVM (Bottom Layer) -
Page 21: Tpa3004D2Evm Parts List
TPA3004D2EVM Parts List 3.3 TPA3004D2EVM Parts List Table 3–1. TPA3004D2EVM Parts List Reference Description Size Mfg. Part # Vendor Part # C1–C5 Capacitor, ceramic, 0603 Panasonic ECJ–1VF1A105Z Digi-Key/PCC1787CT–ND 1.0µF, +80%/–20%, Y5V, 10 V Capacitor, ceramic, 0603 Panasonic ECJ–1VC1H221J Digi-Key/PCC221ACVCT–ND 220 pF, ±5%, 50 V... -
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... -
Page 25: Tpa3004D2Evm (Bottom View)
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