Sure Electronics TPA3110 User manual

©2004-2012 Sure Electronics Inc. AA-AB32231_Ver1.0
2 X 8Watt Class D Audio
Amplifier Board – TPA3110
User’s Guide

2 X 8Watt Class D Audio Amplifier Board –TPA3110
©2004-2012 Sure Electronics Inc. AA-AB32231_Ver1.0
Note:
Please read this manual carefully before you use the product. To keep the product in a best working condition
and having a long service time, please operate it according to the relevant steps. The warranty lapses if the
product is damaged because of incorrect use and your negligence.
Please read this manual carefully before you use the product and check if the product is a good one. DC12V
is recommended to be used to power the product for one hour. Never use this product in an extreme
condition.
Warning: Never immerse the product in the rain or any other humid environment to prevent the fire or
electric shock.
Safety Precautions:
1. In order to achieve a better sound quality, please use stable power supply since a bad or unstable power
supply may worsen the sound quality or even cripple the amplifier board.
2. Avoid metal objects. Protect this product well and move away metal objects from this product.

2 X 8WATT CLASS D AUDIO
AMPLIFIER BOARD - TPA3110
USER’S GUIDE
©2004-2012 Sure Electronics Inc.
A
A-AB32231_Ver1.0_Page i
Table of Contents
Chapter 1. Overview ..........................................................................................................1
1.1 Overview.............................................................................................................. 1
1.2 Accessories......................................................................................................... 1
1.3 Features............................................................................................................... 1
1.4 Applications......................................................................................................... 2
1.5 Benefits................................................................................................................ 2
1.6 Quick Start ........................................................................................................... 2
Chapter 2. Hardware Detail ...............................................................................................4
2.1 Power Connection............................................................................................... 4
2.2 Input Connections............................................................................................... 5
2.3 Output Connections............................................................................................ 5
2.4 Mute Settings....................................................................................................... 6
2.5 LED Indicators..................................................................................................... 7
2.6 Volume Control.................................................................................................... 7
2.7 Notes.................................................................................................................... 8
Chapter 3. Electrical Characteristics ...............................................................................9
Chapter 4. Mechanical Drawing......................................................................................11
Chapter 5. Contact Us .....................................................................................................12

2 X 8Watt Class D Audio Amplifier Board - TPA3110
©2004-2012 Sure Electronics Inc.
A
A-AB32231_Ver1.0_Page10
NOTES:
Product Version ：Ver 1.0
Document Version ：Ver 1.0

2 X 8WATT CLASS D AUDIO
AMPLIFIER BOARD - TPA3110
USER’S GUIDE
©2004-2012 Sure Electronics Inc .
A
A-AB32231_Ver1.0_Page 1
1.1 Overview
Welcome to use this self-made 2*8W audio amplifier board which is a perfect class-D
architecture integrated TPA3110D2 chip to achieve the dual-channel 8W power output.
This board can be powered by any DC power supply ranging from +8 to 19V, which can be
used to drive any 4Ωor 8Ωpassive speakers.
High quality components, high efficiency chip and self-dissipation make this product
perfect for hi-fi applications.
FIGURE 1-1 OVERVIEW
Note: All the diagrams in this manual are for reference only.
1.2 Accessories
We don’t provide audio accessories together with this product. Please go to
www.sure-electronics.com to choose what you need.
1.3 Features
yA perfect "Class D" architecture
yFull bridge stereo audio output
yWide supply range: DC 8V to 19V
yTwo ways of audio input: line level and analog
yFrequency response: 20Hz to 20KHz(±3dB)
Chapter 1. Overview

2 X 8Watt Class D Audio Amplifier Board - TPA3110
©2004-2012 Sure Electronics Inc.
A
A-AB32231_Ver1.0_Page10
yHigh Output Power
5W @ 8Ω, < 10.0% THD+N
8W @ 4Ω, < 10.0% THD+N
yHigh Efficiency
92% @ 4W 8Ω
85% @ 6W 4Ω
yAudiophile Quality Sound
0.1% THD+N @ 3W 8Ω
0.1% THD+N @ 6W 4Ω
yOver/under voltage protection
yOver current protection
yOver temperature protection
1.4 Applications
yActive subwoofer
yHome DIY
yMultiple-channel Distribution
yActive DVD System
yMini/Micro Systems
1.5 Benefits
yMounting holes facilitate installation and fixing
ySeveral wiring methods facilitate connection：RCA Socket (Default),Terminal
Block(Optional)
yExcellent heat dissipation eliminates the requirement of an extra heat sink.
1.6 Quick Start
Suggested connection is shown in figure 1-3.
FIGURE 1-3 CONNECTION SCHEMATIC

Overview
©2004-2012 Sure Electronics Inc.
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A-AB32231_Ver1.0_Page 3
Note: Please observe the following steps to complete verification so as to ensure the
products are intact during transit.
1. Open the amplifier package and make sure the product is intact (No missing
or damaged components and no deformation.
2. Please observe the connection schematics when connecting the amplifier
board. Use a nearby sound source, such as MP3 or CD player to have a trial.
This amplifier board can be deemed as qualified if you can hear the sound
corresponding to that sound source

2 X 8WATT CLASS D AUDIO
AMPLIFIER BOARD - TPA3110
USER’S GUIDE
©2004-2012 Sure Electronics Inc.
A
A-AB32231_Ver1.0_Page 4
2.1 Power Connection
This product is powered through an on board DC jack which is anode inside and cathode
outside. If you prefer to power the board with terminal block, please visit our website for
the accessories package and install them manually.
FIGURE 2-1 POWER CONNECTION
TABLE 2-1 POWER CONNECTION
Connector Mark Description
Jack J7 DC 8-19V power supply socket
VCC Positive of power supply
Terminal
blocks* J6 GND Negative of power supply
Chapter 2. Hardware Detail

Hardware Detail
©2004-2012 Sure Electronics Inc.
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A-AB32231_Ver1.0_Page 5
Note:
1. You are allowed to use only one way to power the amplifier board at a time.
2. The maximum supply voltage shall be referred to Chapter 3.
3. 12V Switching Power Supply is recommended.
2.2 Input Connections
This product uses 3.5 audio jack to for audio input. If you prefer to power the board with
terminal block, please visit our website for the accessories package and install them
manually.
FIGURE 2-2 INPUT CONNECTION
TABLE 2-2 INPUT CONNECTION
Connector Mark Description
3.5mm audio jack J5 Stereo input
CH1 Channel 1 Input
J1 GND GND
CH2 Channel 2 Input
Terminal blocks
J2 GND GND
Warning: You are allowed to feed only one group (dual channel) of audio signal to the
amplifier board at a time.
2.3 Output Connections
This product uses terminal block for audio output.

2 X 8Watt Class D Audio Amplifier Board - TPA3110
©2004-2012 Sure Electronics Inc.
A
A-AB32231_Ver1.0_Page10
FIGURE 2-3 OUTPUT CONNECTION
TABLE 2-3 OUTPUT CONNECTION
Connector Mark Description
J3 Output of Channel 1
Terminal blocks
J4 Output of Channel 2
Note:
1. Never connect more than one group of speaker to the audio output
2. Never connect CH1_OUT-, CH2_OUT- together since they belong to different
NETs.
3. Refer to on-board descriptions for connection details.
2.4 Mute Settings
For Mute settings, just connect GND and SD together with a wire. Normally, SD is not
connected. If you prefer to power the board with terminal block, please visit our website for
the accessories package and install them manually.

Hardware Detail
©2004-2012 Sure Electronics Inc.
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A-AB32231_Ver1.0_Page 7
FIGURE 2-4 MUTE SETTINGS
TABLE 2-4 OUTPUT CONNECTION
Terminal blocks Description
J8（optional）SD
Connect SD and GND, and then two channels will be in Mute
mode.
Leave SD unconnected and two channels will restore normal
working.
2.5 LED Indicators
This amplifier has 1 power LED indicator which is marked as “Status”. It will be
illuminated in green when power-up.
FIGURE 2-4 LED INDICATOR
2.6 Volume Control
No potentiometer is provided for manually adjusting the volume. The volume control of
sound source like MP3 or PC can be used to adjust the volume of the audio output or a
50KΩpotentiometer can be installed by users themselves, which may cause signal
attenuation.
Please be aware that audio clippings may occur to some portable players because of the
audio source not the amplifier itself.

2 X 8Watt Class D Audio Amplifier Board - TPA3110
©2004-2012 Sure Electronics Inc.
A
A-AB32231_Ver1.0_Page10
2.7 Notes
In order to protect amplifier board and extend its service lifetime, please read the
following warnings carefully since warranties will be voided if you do not observe the
following warnings:
Warning 1:
Quality-related issues caused by potentiometers installed by buyers.
Warning 2:
In order to achieve a better sound quality, please use stable power supply since a bad or
unstable power supply may worsen the sound quality or even cripple the amplifier board.
Warning 3:
Never equip a pre-amplifier to the audio input since the amplifier itself has powerful
amplification ability and a high signal input will burn out the amplifier chip.
Warning 4:
In order to protect amplifier and speaker, please turn the volume output to the minimum
when hooking up the amplifier and you may readjust the volume when you are sure that
the amplifier is functioning properly.

2 X 8WATT CLASS D AUDIO
AMPLIFIER BOARD - TPA3110
USER’S GUIDE
©2004-2012 Sure Electronics Inc.
A
A-AB32231_Ver1.0_Page 9
Following table lists all typical data of the Amp board. For full specification, please refer to
the data sheet of TI’s TPA3110 chip. All the parameters are tested @ TA=20 ,℃ＤＣ12Ｖ；
f=1000Hz, sine ware input, RL=4Ω, Gain=20dB.
TABLE 3-1 ELECTRICAL CHARACTERISTICS
Parameter Condition Min. Typ. Max.
Supply Voltage - 8V 12V 19V
Input Sensitivity Gain=26dB - 0.283V -
S/N Ratio
Maximum output
at THD+ N < 1%,
f = 1 kHz,
Gain=20db,
A-weighted
- 102dB -
Vcc = 16 V, f = 1
kHz, Po = 7.5 W
(half-power)
0.1% -
THD+N RL = 8 Ω, f = 1
kHz, Po = 5 W
(half-power)
0.06% -
Vcc=12V,
RL=8Ω, Pout=5W - 86% -
Efficiency Vcc=12V,
RL=8Ω,
Pout=10W
89% -
Input Impedance - - 30K ohm -
Gain - 26dB
THD+ N= 10%, f
= 1 kHz, Vcc = 16
V
- 15W -
Output Power THD+N = 10%, f
= 1 kHz; Vcc = 13
V
- 10W -
Frequency Response - - 20HZ-20KHz
（±3dB）-
High-level input
voltage 2V - -
SD Low-level input
voltage - - 0.8V
Quiescent Current SD = 2 V, no - 20mA 35mA
Chapter 3. Electrical Characteristics

2 X 8Watt Class D Audio Amplifier Board - TPA3110
©2004-2012 Sure Electronics Inc.
A
A-AB32231_Ver1.0_Page10
load, Vcc = 12V
Load - 3.2 ohm 4 ohm -
Operating Temperature - -40℃20℃65℃
Storage Temperature - -60℃20℃105℃
Thermal Shutdown - - 150℃-
Note: Some data above come from the datasheet of TI’s TPA3110. For more details,
please refer to relevant documents.

2 X 8WATT CLASS D AUDIO
AMPLIFIER BOARD - TPA3110
USER’S GUIDE
©2004-2012 Sure Electronics Inc.
A
A-AB32231_Ver1.0_Page 11
FIGURE 4-1 MECHANICAL DRAWING
Chapter 4. Mechanical Drawing

2 X 8WATT CLASS D AUDIO
AMPLIFIER BOARD - TPA3110
USER’S GUIDE
©2004-2012 Sure Electronics Inc.
A
A-AB32231_Ver1.0_Page 12
Sure Electronics Co., Ltd.
East zone, 3F, Building 6
Jingang Technology Innovation Center
No.108 Ganjiabian Rd (ZIP: 210000)
Qixia District
Nanjing
P.R.China
Tel: [phone]
Fax: [phone]
Website: www.sure-electronics.com
Email: [e-mail]
Chapter 5. Contact Us