Texas Instruments SLOU121 User Manual
User’s Guide
February 2002 Mixed Signal Products
SLOU121
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. All products are sold subject to TI’s terms
and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in
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
their products and applications using TI components. T o minimize the risks associated with customer products
and applications, customers should provide adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,
copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process
in which TI products or services are used. Information published by TI regarding third–party products or services
does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.
Use of such information may require a license from a third party under the patents or other intellectual property
of the third party , or a license from TI under the patents or other intellectual property of TI.
Reproduction of information in TI data books or data sheets is permissible only if reproduction is without
alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction
of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for
such altered documentation.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that
product or service voids all express and any implied warranties for the associated TI product or service and
is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.
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 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 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 ST ATUT ORY, INCLUDING ANY W ARRANTY 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 P ARTY 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 specified input and output ranges described in
the EVM User’s Guide.
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 power.
Applying loads outside of the specified output range 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
60°C. The EVM is designed to operate properly with certain components above 60°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
How to Use This Manual
This document contains the following chapters:
- Chapter 1—Introduction
- Chapter 2—Quick Start
Information About Cautions and Warnings
Preface
Read This First
- Chapter 3—Details
- Chapter 4—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.
This is an example of a warning statement.
A warning statement describes a situation that could potentially
cause harm to you
.
The information in a caution or a warning is provided for your protection.
Please read each caution and warning carefully.
v
Related Documentation From Texas Instruments
Related Documentation From Texas Instruments
- TI Plug-N-Play Audio Amplifier Evaluation Platform (literature number
SLOU011) provides detailed information on the evaluation platform and
its use with TI audio evaluation modules
- TPA6011A4 Stereo 2-W Audio Power Amplifier (literature number
SLOS392) This is the data sheet for the TP A6011A4 audio amplifier integrated circuit.
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 frequency interference. Operation of this equipment in other
environments may cause interference with radio communications, in which
case the user at his own expense will be required to take whatever measures
may be required to correct this interference.
vi
Contents
Contents
1 Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Feature Highlights 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Description 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 TP A6011A4 EVM Specifications 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Quick Start 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Precautions 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Quick Start List for Platform 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Quick Start List for Stand-Alone 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Details 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Precautions 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 The TPA6011A4 Audio Power Amplifier Evaluation Module 3-3. . . . . . . . . . . . . . . . . . . . . . .
3.2.1 TPA6011A4 Audio Amplifier IC 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.2 Inputs and Gain 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.3 Volume Control 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.4 Differential Input 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.5 Depop Circuitry 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.6 BTL Operation 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.7 Single-Ended Operation 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Using the TPA6011A4 EVM With the Plug-N-Play Evaluation Platform 3-10. . . . . . . . . . . .
3.3.1 Installing and Removing EVM Boards 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.2 TPA6011A4 Module Jumper Settings and Switches 3-10. . . . . . . . . . . . . . . . . . . . .
3.3.3 Signal Routing 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.4 Mute (Shutdown)/Mode 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.5 Power Requirements 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.6 Inputs and Outputs 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 Using the TPA6011A4 EVM Stand-Alone 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.1 TPA6011A4 EVM Connected for BTL Output 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.2 TPA6011A4 EVM Connected for Single-Ended Output 3-18. . . . . . . . . . . . . . . . . . .
4 Reference 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 TPA6011A4 EVM Layers and Board Schematic 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 TPA6011A4 EVM Parts List 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
vii
Contents
Figures
1–1 The TI TPA6011A4 Audio Amplifier Evaluation Module 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–1 Quick Start Platform Map 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–2 Module Preparation 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–3 Quick Start Module Map 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–1 The TI Plug-N-Play Audio Amplifier Evaluation Platform 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–2 TPA6011A4 EVM 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–3 TPA6011A4 EVM Schematic Diagram 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–4 TPA6011A4 Amplifier IC 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–5 Block Diagram of SE Volume Control 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–6 TPA6011A4 EVM Jumpers and Switches 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–7 Platform Signal Routing and Outputs 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–8 Mute/Mode and Polarity Control 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–9 Typical Headphone Plug 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–10 TPA6011A4 EVM Connected for Stereo BTL Output 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–11 TPA6011A4 EVM Connected for Stereo Single-Ended Output 3-18. . . . . . . . . . . . . . . . . . . . . .
4–1 TPA06011A4 EVM Top View 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–2 TPA06011A4 EVM Bottom V iew 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–3 TPA06011A4 EVM Schematic Diagram 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables
2–1 Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA6011A4 2-1. . . . . .
2–2 Typical TPA6011A4 EVM Jumper Settings 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–3 Platform Jumper and Switch Settings for the TPA6011A4 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . .
2–4 Typical TPA6011A4 EVM Jumper Settings 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–1 DC Volume Control (BTL Mode, V
3–2 DC Volume Control (SE Mode, VDD = 5 V) 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–3 Typical TPA6011A4 EVM Jumper Settings for BTL Stand-Alone 3-17. . . . . . . . . . . . . . . . . . . .
3–4 Typical TPA6011A4 EVM Jumper Settings for Single-Ended Stand-Alone 3-18. . . . . . . . . . . .
4–1 TPA6011A4 EVM Parts List 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
viii
= 5 V) 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DD
Chapter 1
Introduction
This chapter provides an overview of the Texas Instruments (TI) TP A6011A4
audio amplifier evaluation module (SLOP389). It includes a list of EVM
features, a brief illustrated description of the module, and a list of EVM
specifications.
Topic Page
1.1 Feature Highlights 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Description 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 TP A6011A4 EVM Specifications 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
Feature Highlights
1.1 Feature Highlights
The TI TP A6011A4 audio amplifier evaluation module and the TI plug-n-play
audio amplifier evaluation platform include the following features:
- TPA6011A4 stereo 2-W audio power amplifier evaluation module
J Internal depop circuitry to minimize transients in outputs
J Dual channel, bridge-tied load (BTL) or single-ended (SE) operation
J 2 W per channel output power into 3 Ω at 5 V, BTL
J Low current consumption in shutdown mode (20 µA)
J Internal input MUX selects among two sets of stereo inputs
J DC voltage volume control from 20 dB to –40 dB, and –85 dB mute
J SE dc voltage volume control proportional to BTL gain setting
J Maximum SE volume control setting via SEMAX terminal
J Differential stereo inputs
J A fade mode slowly ramps up or down the volume when coming out of
(BTL Mode)
or going into shutdown.
- Quick and easy configuration with the TI plug-n-play audio amplifier
evaluation platform
J Evaluation module is designed to simply plug into the platform,
automatically making all signal, control, and power connections
J Platform provides flexible power options
J Jumpers on the platform select power and module control options
J Switches on the platform route signals
J Platform provides quick and easy audio input and output connections
- Platform power options
J External 5-V – 15-V DC V
J External regulated V
J Socket for onboard 5-V/3.3-V V
J Onboard overvoltage and reverse polarity power protection
- Platform audio input and output connections
J Left and right RCA phono jack inputs
J Miniature stereo phone jack input
DD
supply inputs
CC
supply input
DD
voltage regulator EVM
1-2
J Left and right RCA phono jack outputs
J Left and right compression speaker terminal outputs
J Miniature stereo headphone jack output
Introduction
1.2 Description
The TPA6011A4 stereo 2-W audio power amplifier evaluation module is a
complete, 2-W per channel stereo audio power amplifier with dc volume
control. It consists of the TI TP A6011A4 stereo 2-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 (see Figure 1–1).
Figure 1–1.The TI TPA6011A4 Audio Amplifier Evaluation Module
Description
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 equipment
when used stand-alone.
The platform has room for a single TPA6011A4 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. Easy-to-use configuration controls allow the platform and
EVMs to quickly model many possible end-equipment configurations.
There is nothing to build, nothing to solder, and nothing but the speakers
included with the platform to hook up.
1.3 TPA6011A4 EVM Specifications
Supply voltage range, V
Supply current, I
Continuous output power per channel, P
Audio input voltage, V
Minimum load impedance, R
DD
DD
: 3-Ω BTL, VDD=5 V 2 W. . . . . . .
O
: HP input 5 Vpp max. . . . . . . . . . . . . . . . . . . . . . . . . .
I
Line input 5 Vpp max. . . . . . . . . . . . . . . . . . . . . . . .
L
4.5 V to 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 A max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
1-3
1-4
Introduction
Chapter 2
Quick Start
The steps in this chapter can be followed to quickly prepare the TPA6011A4
audio amplifier EVM for use. Using the TPA6011A4 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
stand-alone by making connections directly to the module pins, and can be
wired directly into existing circuits or equipment.
The platform switch and jumper settings shown in T able 2–1 are typical for the
TP A6011A4 EVM and will cause the TP A601 1A4 to switch to single-ended output mode when a plug is inserted into platform headphone jack J10.
Table 2–1. Typical TI Plug-N-Play Platform Jumper and Switch Settings for the
TPA6011A4
EVM JP6 JP7 JP8 S2 S3
P-N-P Platform Mode X Hi Note 2 U2–U4
Notes: 1) X = Don’t care
2) Set S2 to ON when signal conditioning board is installed in U1; set S2
to OFF when no signal conditioning board is installed.
Table 2–2. Typical TPA6011A4 EVM Jumper Settings
EVM J1 J2 J3 J4
TPA6011A4 OFF OFF ON OFF
Note: ON = Shunt installed
OFF = Open
Topic Page
2.1 Precautions 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Quick Start List for Platform 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Quick Start List for Stand-Alone 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quick Start
2-1
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