Texas Instruments TPA0103 User manual

TPA0103
Audio Power Amplifier
Evaluation Module
August 1998 Mixed-Signal Products
User’s Guide
SLOU015

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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TIdeemsnecessarytosupport thiswarranty. Specifictestingof allparametersofeachdevice isnotnecessarily
performed, except those mandated by government requirements.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICALAPPLICATIONS.INCLUSIONOFTIPRODUCTSINSUCHAPPLICATIONSISUNDERSTOODTO
BE FULLY AT THE CUSTOMER’S RISK.
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safeguards must be provided by the customer to minimize inherent or procedural hazards.
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Copyright 1998, Texas Instruments Incorporated

iii
Chapter Title—Attribute Reference
Preface
Related Documentation From Texas Instruments
J 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.
J TPA0103 3-CHANNEL AUDIO POWER AMPLIFIER STEREO
SINGLE-ENDED 500-mW AND MONO BTL 1.75-W
(literature
number SLOS167) This is the data sheet for the TPA0103 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
testedforcompliancewiththelimitsofcomputing devices pursuant to subpart
Jofpart 15ofFCCrules,which aredesignedtoprovidereasonableprotection
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.
Trademarks
TI is a trademark of Texas Instruments Incorporated.

iv

Running Title—Attribute Reference
v
Chapter Title—Attribute Reference
Contents
1 Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Feature Highlights 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Description 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 TPA0103 EVM Specifications 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Details 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Precautions 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 The TPA0103 Audio Amplifier Evaluation Module 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.1 TPA0103 Audio Amplifier IC 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.2 Output Modes 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.3 Inputs and Gain 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Using The TPA0103 EVM With The Plug-N-Play Evaluation Platform 3-7. . . . . . . . . . . . . .
3.3.1 Installing and Removing EVM Boards 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.2 TPA0103Module Jumper Settings 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.3 Signal Routing 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.4 Mode Control 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.5 Power Requirements 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.6 Inputs and Outputs 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 Using The TPA0103 EVM Stand-ALone 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.1 TPA0103 EVM Connected for Center Channel BTL Output 3-16. . . . . . . . . . . . . . .
3.4.2 TPA0103 EVM Connected for Stereo Headphones Output 3-17. . . . . . . . . . . . . . .
3.5 TPA0103 Audio Amplifier Evaluation Module Parts List 3-18. . . . . . . . . . . . . . . . . . . . . . . . .

Running Title—Attribute Reference
vi
Figures
1–1 The TI TPA0103 Audio Amplifier Evaluation Module 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–1 Quick Start Platform Map 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–2 Quick Start Module Map 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–1 The TI Plug-N-Play Audio Amplifier Evaluation Platform 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–2 TPA0103 EVM 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–3 TPA0103 EVM Schematic Diagram 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–4 TPA0103 Audio Amplifier IC 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–5 TPA0103 EVM Jumpers 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–6 Platform Signal Routing and Outputs 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–7 Mute/Mode and Polarity Control 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–8 Typical Headphone Plug 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–9 TPA0103 EVM Connected for Center Channel BTL Output 3-16. . . . . . . . . . . . . . . . . . . . . . . .
3–10 TPA0103 EVM Connected for Stereo Headphones Output 3-17. . . . . . . . . . . . . . . . . . . . . . . . .
Tables
2–1 Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA0103 2-1. . . . . . . . .
2–2 Typical TPA0103 EVM Jumper Settings 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–3 TI Plug-N-Play Platform Jumper and Switch Settings for the TPA0103 2-3. . . . . . . . . . . . . . .
2–4 TPA0103 EVM Jumper Settings 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–5 TPA0103 EVM Stand-Alone Jumper Settings 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–1 TPA0103 Output Modes 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–2 TPA0103 Output Modes 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–3 Typical TPA0103 EVM Jumper Settings for Center Channel BTL Stand-Alone 3-16. . . . . . . .
3–4 Typical TPA0103 EVM Jumper Settings for Stereo Headphones Output 3-17. . . . . . . . . . . . .
3–5 TPA0103 EVM Parts List 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1
Introduction
Introduction
This chapter provides an overview of the Texas Instruments (TI) TPA0103
Audio Amplifier Evaluation Module (SLOP103). It includes a list of EVM
features, a brief description of the module illustrated with a pictorial diagram,
and a list of EVM specifications.
Topic Page
1.1 Feature Highlights 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Description 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 TPA0103 EVM Specifications 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1

1-2
Introduction

Feature Highlights
1-3
Introduction
1.1 Feature Highlights
The TI TPA0103 Audio Amplifier Evaluation Module and the TI Plug-N-Play
Audio Amplifier Evaluation Platform include the following features:
- TPA0103 Low-Voltage Audio Power Amplifier Evaluation Module
J 535-mW single-ended into 4 Ωat 5 V L/R channels
J 1.75-W bridge-tied load (BTL) into 4 Ωat 5 V center channel
J 3.3-V and 5-V operation
J Low distortion (< 0.25% THD+N at full power)
J Ultra-low current consumption in full shutdown mode
J Two sets of stereo inputs with internal MUX
J Module gain adjustable between approximately 2 and 22
- 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, auto-
matically 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 Platformprovides quick andeasyaudio input andoutput connections
- Platform Power Options
J Onboard 9-V battery
J External 5-V – 15-V DC VCC supply inputs
J External regulated VDD supply input
J Socket for onboard 5 V/3.3 V VDD voltage regulator EVM
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
J Left and right RCA phono jack outputs
J Left and right compression speaker terminal outputs
J Miniature stereo headphone jack output

Description
1-4
Introduction
1.2 Description
The TPA0103 Audio Power Amplifier Evaluation Module is a complete,
low-power three-channel audio power amplifier. It consists of the TI TPA0103
3-Channel Audio Power Amplifier IC along with a small number of other parts
mounted on a circuit board that measures approximately 2 ¼ inches by 1 ½
inches (Figure 1–1).
Figure 1–1.The TI TPA0103 Audio Amplifier Evaluation Module
GND
ROUT+
HP/L*
COUT–
MODE A
SDWN
GND
COUT+
LOUT+
C1
C2
R6
GND
GND
LIN
LHP
C3
R16
C10C9
VDD GND
R9
C7
C6
RHP
RIN
GND
GND S3
S4
S5
R11
C11
+
S2
MODE B
R5
S1
C12
R18
R2
R1
R3
R13
R14
R4
C8
R15 R12
R7R8
R10
C5
TPA0103 EVM
REV. A
Lit.# SLOP103
–3
009228
R17
U1
Single in-line header pins are mounted to the underside of the module circuit
board to allow the EVM to be plugged into the TI Plug-N-Play Audio Amplifier
EvaluationPlatform,ortobewireddirectlyintoexistingcircuitsandequipment
when used stand-alone.
The platform has room for a single TPA0103 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 auto-
matically provides power to the modules, interconnects them correctly, and
connectsthemtoaversatilearrayofstandardaudioinputandoutputjacksand
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 TPA0103 EVM Specifications
Supply voltage range, VDD 3 V to 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply current, IDD 1.5 A, max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output power, PO: center channel, THD = 0.2%, 4-ΩBTL, VDD=5 V: 1.75 W. . . .
L/R channels, THD = 0.2%, 4-Ω SE, VDD=5 V: 535 mW. . . . . .
L/R channels, THD = 0.2%, 32-Ω SE, VDD=5 V: 100 mW. . . .
Audio input voltage, VI: L/R IN, gain = 2 – 22 BTL 0.75 VPP, max. . . . . . . . . . . . . . . . . .
L/R IN HP, gain = 1 4 VPP, max. . . . . . . . . . . . . . . . . . . . . . . . . .
Minimum load impedance, RL4 Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .