Texas Instruments TPA3007D1EVM Manual de usuario
September 2003 HPL − Audio Power Amplifiers
User’s Guide
SLOU164
IMPORTANT NOTICE
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enhancements, improvements, and other changes to its products and services at any time and to discontinue
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accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI
deems necessary to support this warranty. Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for
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and applications, customers should provide adequate design and operating safeguards.
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Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright 2002, Texas Instruments Incorporated
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.
As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic
compatibility and therefore may not meet the technical requirements of the directive.
Should this evaluation kit not meet the specifications indicated in the EVM User’s Guide, the kit may be returned
within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE
WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED,
IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY
PARTICULAR PURPOSE.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user
indemnifies TI from all claims arising from the handling or use of the goods. Please be aware that the products
received may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). Due to the open construction
of the product, it is the user’s responsibility to take any and all appropriate precautions with regard to electrostatic
discharge.
EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE
TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not
exclusive.
TI assumes no liability for applications assistance, customer product design, software performance, or
infringement of patents or services described herein.
Please read the EVM User’s Guide and, specifically, the EVM Warnings and Restrictions notice in the EVM
User’s Guide prior to handling the product. This notice contains important safety information about temperatures
and voltages. For further safety concerns, please contact the TI application engineer.
Persons handling the product must have electronics training and observe good laboratory practice standards.
No license is granted under any patent right or other intellectual property right of TI covering or relating to any
machine, process, or combination in which such TI products or services might be or are used.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright 2002, Texas Instruments Incorporated
EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the supply voltage range of 8 V to 18 V.
Exceeding the specified supply voltage range may cause unexpected operation and/or
irreversible damage to the EVM. If there are questions concerning the supply voltage range,
please contact a TI field representative prior to applying power to the device under test (DUT).
Applying loads outside of the specified load impedance may result in unintended operation
and/or possible permanent damage to the EVM. Please consult the EVM User’s Guide prior
to connecting any load to the EVM output. If there is uncertainty as to the load specification,
please contact a TI field representative.
During normal operation, some circuit components may have case temperatures greater than
65°C. The EVM is designed to operate properly with certain components above 65°C as long
as the input and output ranges are maintained. These components include but are not limited
to linear regulators, switching transistors, pass transistors, and current sense resistors. These
types of devices can be identified using the 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
1-1
Introduction
This chapter provides an overview of the Texas Instruments (TI)
TPA3007D1EVM class-D audio amplifier evaluation module. It includes a list
of EVM features, a brief illustrated description of the module, and a list of EVM
specifications.
Topic Page
1.1 Description 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 TPA3007D1EVM Specifications 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1
Description
1-2
1.1 Description
The TPA3007D1 evaluation module (EVM) is a 6.5-W class-D mono audio
power amplifier complete with a small number of external components
mounted on a circuit board measuring approximately 1 1/4 inches by 1 1/4
inches (Figure 1−1 and Figure 1−2).
Figure 1−1.The TI TPA3007D1 Audio Power Amplifier EVM—Top View
Description
1-3
Introduction
Figure 1−2.The TI TPA3007D1 Audio Power Amplifier EVM—Bottom View
Note:
Single in-line header pins extend from the underside of the module circuit
board to allow the EVM to be plugged into the TI Plug-N-Play audio amplifier
evaluation platform, or to be wired directly into existing circuits and equip-
ment when used stand-alone operation.
TPA3007D1EVM Specifications
1-4
The platform, which has room for two TPA3007D1EVMs, 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. Easy-to-use configuration controls allow the platform and EVMs
to quickly model many possible end-equipment configurations.
1.2 TPA3007D1EVM Specifications
Supply voltage range, VCC 8 V to 18 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply current, Icc 2 A max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output power, RL= 8 Ω, VDD = 12 V, THD+N =10%, PO6.5 W.
Minimum load impedance, RL7 Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5
Introduction
2-1
Quick Start
Follow the steps in this chapter to quickly prepare the TPA3007D1EVM for
use. Using the TPA3007D1EVM with the TI Plug-N-Play audio amplifier
evaluation platform is a quick and easy way to connect power, signal and
control inputs, and signal outputs to the EVM using standard connectors.
However, the audio amplifier evaluation module can be used in stand-alone
operation by making connections directly to the module pins, and it can be
wired directly into existing circuits or equipment.
Topic Page
2.1 Configuration 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Precautions 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Quick Start List for the Platform 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Quick Start List for Stand-Alone Operation 2-5. . . . . . . . . . . . . . . . . . . . . .
Chapter 2
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