Sure Electronics PAM8803 User Manual
2*2W @4Ω PAM8803 Class-D
Audio Amplifier Board
User’s Guide
© 2004-2010 Sure Electronics Inc. AA-AB32131&AA-AB32133_Ver1.0
2*2W @4Ω PAM8803 CLASS-D
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AUDIO AMPLIFIER BOARD
USER’S GUIDE
Table of Contents
Chapter 1. Overview ..........................................................................................................1
1.1 Overview .............................................................................................................. 1
1.2 Features ............................................................................................................... 2
1.3 Applications......................................................................................................... 3
1.4 Benefits ................................................................................................................ 3
1.5 Quick Start ........................................................................................................... 3
Chapter 2. Hardware Detail ...............................................................................................5
2.1 Power Connection............................................................................................... 5
2.2 Input Connection................................................................................................. 6
2.3 Output Connections............................................................................................ 6
2.4 Mute Settings....................................................................................................... 7
2.5 Sleep Settings ..................................................................................................... 9
2.6 Volume Control Settings .................................................................................. 12
2.7 Volume Control ................................................................................................. 12
2.8 LED Indicator..................................................................................................... 14
2.9 Notes .................................................................................................................. 14
Chapter 3. Electrical Characteristics .............................................................................15
Chapter 4. Mechanical Drawing......................................................................................17
Chapter 5. Appendix........................................................................................................18
Chapter 6. Contact Us .....................................................................................................19
© 2004-2010 Sure Electronics Inc.
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2*2W @4Ω PAM8803 Class-D Audio Amplifier Board
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NOTES:
Product Version ： Ver 1.0
Document Version ： Ver 1.0
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© 2004-2010 Sure Electronics Inc
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1.1 Overview
2*2W @4Ω PAM8803 CLASS-D
AUDIO AMPLIFIER BOARD
USER’S GUIDE
Chapter 1. Overview
Thanks for using 2*2W audio amplifier board series. Each member is a high-quality
dual-channel class-D audio amplifier board capable of delivering 2W per channel of
output power into a 4 load. It employs
volume control and low THD+N, allowing it to produce high-quality sound reproduction.
It’s especially suitable for small speakers. This amplifier board can also be used to drive
passive 4 or 8 speakers.
TABLE 1-1 2*2W AUDIO AMPLIFIER BOARD SERIES
Product No. Product Name
AA-AB32131 2*2W @4 PAM8803 Class-D Audio Amplifier Full-featured Board
AA-AB32133 2*2W @4 PAM8803 Class-D Audio Amplifier Simple Board
FIGURE 1-1 OVERVIEW OF AA-AB32131
PAM’s PAM8803 IC which offers 64-step digital
© 2004-2010 Sure Electronics Inc.
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2*2W @4Ω PAM8803 Class-D Audio Amplifier Board
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FIGURE 1-2 OVERVIEW OF AA-AB32133
FIGURE 1-1 ACCESSORY
1.2 Features
Note: All the diagrams in this manual are for reference only.
y A perfect “Class D” architecture
y Fully-bridged stereo output
y power supply:
AA-AB32131:
Wide power supply range: DC4.5V to12V via a power port
Two to three AA batteries
AA-AB32133:
Two to three AA batteries or DC2.5V to 4.0V via a terminal block
y Two kinds of input:
Line level input via 2510 connector
Audio input via 3.5 headphone jack
y Frequency response: 20Hz to 20KHz(±3dB)
y Signal/Noise Ratio: 85dB (f=22 to 22KHz, THD=1%)
y High Output Power
1.2W @ 8, < 10.0% THD+N
2.0W @ 4, < 10.0% THD+N
y High Efficiency
85% @ 1.2W 8
or DC2.5V to 4.0V via a terminal block
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© 2004-2010 Sure Electronics Inc
y Audiophile Quality Sound
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y Volume control:
y Over/under voltage turn off
y Over current protection
y Over temperature protection
1.3 Applications
y Home Active Speaker
y Home Theater Receiver
y Multi-channel Distribution
y Active DVD System
y Mini/micro Systems
1.4 Benefits
y Mounting holes facilitate installation and fixing
y Several wiring methods facilitate connection
y Excellent heat dissipation eliminate the requirement of an extra heat sink
y Tactile switches for volume control are adjustable
1.5 Quick Start
Suggested connection is shown in figure 1-4 and figure 1-5.
FIGURE 1-4 CONNECTION (AA-AB32131)
Overview
88% @ 2.0W 4
0.19% THD+N @ 0.5W 8
0.17% THD+N @ 1.0W 4
Volume control buttons
External rotary encoder daughter board
© 2004-2010 Sure Electronics Inc.
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FIGURE 1-5 CONNECTION (AA-AB32133)
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.
3. Ensuring the long life time, load connection is recommended before the
power is turned on.
4. GND should be grounded or connected to the housing of the device.
5. The mounting holes of this product should be grounded.
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© 2004-2010 Sure Electronics Inc
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