Download 2*15W @4Ω TA2024C Class-D Audio Amplifier User's Guide

2*15W @4Ω TA2024C
Class-D Audio Amplifier
User’s Guide
© 2004-2009 Sure Electronics Inc.
AA-AB340_Ver1.0
2*15W @4Ω TA2124 Class-D Audio Amplifier
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.
Warning: Never immerse the product in the rain or any other humid environment to prevent the fire or
electric shock.
Safety Precautions:
1. Carefully handle the power cord
Do not damage or deform the power cord, or it will cause the electric shock or abnormal
working.
Removing the power cord from the socket, please confirm what you’ve hold is the socket
not the power cord.
2. Never open the cover
Do not open the cover in order to prevent the electric shock. Any problem, please contact
us.
3. Never put other things in the product
Do not put the metal in the product to prevent the liquid, or it will cause electric shock or
abnormal working.
Operation Precautions:
1. Care the power cord
When you pull out the plug from the socket, do not pull the power cord but hold the plug.
2. Prevention of the high temperature
Never put the product in the place exposed by the sun or near to the heating equipment.
3. Caution of the rack or chassis installation
Never put this product in a closed rack.
4. Never open the cover
It’s dangerous to open the bottom chassis or put your hand in the chassis, so do not open
it. If this product has something wrong, pull out the power plug immediately and contact us.
5. Protect the chassis
Avoid spraying insecticides near the product. Do not wipe the product with liquid like
gasoline, water or other solvents, which easily cause the change of the quality or the color.
Use soft cloth to clean dust. Please follow the instructions in this user’s manual when you
use the chemical-treated cloth.
6. Prevent sundries from falling into this product
Be especially careful to prevent the sundries like needles, hairpins, coins from falling into
this product.
7. When you go out
If you don’t use this product in a long time, e.g. when you go out for a trip, you must pull out
the plug from the power socket.
8. Be care with humidity, water and dust
Do not put this product in the highly humid position or the position with much dust. Do not
place vases or something with water in on this product.
9. Please keep the manual well
After reading this instruction, please keep it well along with the warranty card，which will be
helpful when there are faults.
Attention please. In order to explain clearly to users, the graphic representation in this
user’s manual may be some different from the real device.
© 2004-2009 Sure Electronics Inc.
AA-AB340_Ver1.0
2*15W @4Ω TA2024C
CLASS-D AUDIO AMPLIFIER
USER’S GUIDE
Table of Contents
Chapter 1. Overview ..........................................................................................................1
1.1
1.2
1.3
1.4
1.5
Overview .............................................................................................................. 1
Accessory ............................................................................................................ 1
Features ............................................................................................................... 1
Applications......................................................................................................... 2
Components and Function................................................................................. 2
1.5.1 Front panel ..................................................................................................................... 2
1.5.2 Back panel ...................................................................................................................... 3
1.5.3 Connection ..................................................................................................................... 3
Chapter 2. Hardware Detail ...............................................................................................5
2.1
2.2
2.3
2.4
2.5
2.6
Power Connection............................................................................................... 5
Switch Setting ..................................................................................................... 5
Input Connection................................................................................................. 6
Output Connection.............................................................................................. 6
Volume Control.................................................................................................... 7
LED Indicators..................................................................................................... 7
Chapter 3. Electrical Characteristics ...............................................................................8
3.1 Basic Parameters ................................................................................................ 8
3.2 Fault Tracing........................................................................................................ 8
Chapter 4. Mechanical Drawing......................................................................................10
Chapter 5. Appendix ........................................................................................................ 11
Chapter 6. Contact Us .....................................................................................................12
© 2004-2009 Sure Electronics Inc.
AA-AB340_Ver1.0_Page i
2*15W @4Ω TA2024C Class-D Audio Amplifier
NOTES:
Product Version
：
Ver 1.1
Document Version
：
Ver 1.0
AA-AB340_Ver1.0_Page ii
© 2004-2009 Sure Electronics Inc
2*15W @4Ω TA2024C
CLASS-D AUDIO AMPLIFIER
USER’S GUIDE
Chapter 1. Overview
1.1 Overview
Welcome to use this self-made 2*15W audio amplifier board. This product is of small
size, portable and elegant. Outer casing is fully made from aluminum alloy, so it is tough
and durable. What more important is that it is an ideal Class-D audio power amplifier,
integrated with TA2024C which is currently popular around the world. It not only provides
dream sound but also has high efficiency, thus it can dissipate the heat after long-time
working to ensure that the amplifier can works in a stable condition for long time.
This product supports dual channel amplification of up to 15W each and Hi-Fi output. In
order to ensure reproduction of perfect sound, we adopt volume potentiometers of high
quality. Thus volume can be precisely adjusted and sound of high quality can be gained,
although the product has worked for long time. With built-in MCU, this product can
provide over/under voltage protection, low current protection and display LED state.
This product can be powered by any DC power supply ranging from 9 to 14V. You can
use it to drive any 4Ω or 8Ω passive speakers.
FIGURE 1-1 OVERVIEW
1.2 Accessory
Please check carefully the packing box, which contains the things as follows:
1. One main power amplifier
2. One user’s manual
1.3 Features
1 Ideal Class-D power amplifier
2 Range of power supply: DC9V—14V;
3 Fully made from aluminum alloy, compact, pleasing, fashionable and durable
4 Original TA2024 chip ensures the perfect sound.
© 2004-2009 Sure Electronics Inc.
AA-AB340_Ver1.0_Page 1
2*15W @4Ω TA2024C Class-D Audio Amplifier
5 Volume potentiometer of high-quality can adjust the volume precisely after long-time
use
6 “Audiophile” Quality Sound:
0.1% THD+N @ 9W, 4Ω;
0.1% THD+N @ 6W, 8Ω;
7 High Power
15W @ 4Ω, 10% THD+N
10W @ 8Ω, 10% THD+N
8 High Efficiency
81% @ 15W, 4Ω
90% @ 10W, 8Ω
9 Suitable for the input of many kinds of audio signals
10 MCU based, more fashionable and attractive, creating dynamic LED breathing effect
11 Over / under voltage turn off
12 Over current protection
13 Over temperature protection
1.4 Applications
1 Home Theater
2 Powered Subwoofers
3 Powered DVD Systems
4 Mini/Micro Systems
5 MP3, Video CD output Amplification
1.5 Components and Function
1.5.1 Front panel
Please refer to the corresponding pages for the detailed information.
FIGURE 1-3 (POWER SWITCH, VOLUME KNOB)
1—power switch
AA-AB340_Ver1.0_Page 2
2—volume knob
© 2004-2009 Sure Electronics Inc
Overview
1.5.2 Back panel
FIGURE 1-4 (POWER INPUT, SPEAKER OUTPUT, AUDIO SIGNAL INPUT)
3—speaker output terminal
4—audio signal input terminal
5—serial number
6—power input
1.5.3 Connection
© 2004-2009 Sure Electronics Inc.
AA-AB340_Ver1.0_Page 3
2*15W @4Ω TA2024C Class-D Audio Amplifier
FIGURE 1-5 CONNECTING SCHEMATICS
AA-AB340_Ver1.0_Page 4
© 2004-2009 Sure Electronics Inc
2*15W @4Ω TA2024C
CLASS-D AUDIO AMPLIFIER
USER’S GUIDE
Chapter 2. Hardware Detail
2.1 Power Connection
A voltage-regulated power of high-performance is necessary to provide basic and
enough power so that this product could work stably, or any problem caused by poor
power is out of the warranty.
This product works at DC12V. Please refer to Chapter 3 for basic parameters
Please connect the power voltage regulator with the audio power amplifier according to
the following schematics:
FIGURE 2-1 POWER CONNECTION SCHEMATIC
2.2 Switch Setting
When the switch is ON, the machine is working and LED is lighting all the time. When
the switch is OFF, the machine is in standby mode and LED shows breathing-effect
lighting.
© 2004-2009 Sure Electronics Inc.
AA-AB340_Ver1.0_Page 5
2*15W @4Ω TA2024C Class-D Audio Amplifier
FIGURE 2-2 SWITCH SETTING
TABLE 2-1 SWITCH FUNCTION
State
Function
ON
Amplifier working
OFF
Amplifier not working
LED state
LED always lighting
LED lighting in a breathing-effect state
2.3 Input Connection
This product adopts RCA socket to input audio signal. You need a 3.5 to RCA cable
which we do not provide in the accessory.
FIGURE 2-3 INPUT CONNECTION
2.4 Output Connection
This product adopts Banana socket with two output channels to output audio signal. Pay
attention that LOUT+ and LOUT- are Left Output Channels, ROUT+ and ROUT- are
Right Output Channels.
AA-AB340_Ver1.0_Page 6
© 2004-2009 Sure Electronics Inc
Hardware Detail
FIGURE 2-4 OUTPUT CONNECTION
Note: LOUT- and ROUT- are not in the same net and can not be connected together.
Moreover, LOUT+, LOUT-, ROUT+, ROUT- can not be connected to the ground
2.5 Volume Control
We adopt volume potentiometer of high-quality which can adjust the volume precisely
after long-time use
FIGURE 2-5 VOLUME CONTROL
2.6 LED Indicators
This product is based on MCU which controls the indicators to display dynamic LED
state and make this product more fashionable and attractive. Please refer to table 2-1 for
details.
© 2004-2009 Sure Electronics Inc.
AA-AB340_Ver1.0_Page 7
2*15W @4Ω TA2024C
CLASS-D AUDIO AMPLIFIER
USER’S GUIDE
Chapter 3. Electrical Characteristics
3.1 Basic Parameters
Basic parameter tested @DC12V 4ohm (except for the parameter marked with *)
TABLE 3-1 BASIC PARAMETERS
Parameter
Min
Typical
Max
Power voltage
9V
12V
14V
Input Sensitivity
250mV
270mV
290mV
Frequency
20Hz—-20KHz(±3dB)
Output power*
9W@4ohm, THD+N<0.1%
（VCC = 12V, RL = 4Ω）
12W@4ohms, THD+N<1%
15W@4ohms, THD+N<10%
10W @ 8ohms, THD+N<10%
Output power *
（VCC = 12V, RL = 8Ω）
0.03% THD+N @ 9W, 4Ω
（THD+N）
0.1% THD+N @11W, 4Ω
0.1% THD+N @6W, 8Ω
Efficiency
84% @ 15W, 4Ω
90% @ 10W, 8Ω
Signal/Noise Ratio
90dB(A
90dB(A weighted)
weighted)
Minimum Load
3.2 ohms
4 ohms
Input Impendence
10K
20K
Power Gain
25dB
27.6dB
Working Temperature
0℃
25℃
Impendence
Note:
55℃
*The chip specifications by Tripath.
放前，再次检查播放机是否发生故障
3.2 Fault Tracing
If the amplifier does not work well, please read the following table:
AA-AB340_Ver1.0_Page 8
© 2004-2009 Sure Electronics Inc.
2*15W @4Ω TA2024C Class-D Audio Amplifier
TABLE 3-2 CORRECTIVE MAINTENANCE
Situation
Solutions
No sound
1.
Check if it is connected with the power and confirm that the voltage regulator works
well. If not, connect the power according to the schematics.
2.
Check if the signal input cable is connected correctly and if there is signal. If not,
connect the lines according to the schematic and input the audio signal.
3.
Check if the output cable is damaged and if the speaker works or not. If not, change
the output cable and the speaker.
4.
Check if the LED keeps on lighting or not. If not, restart it and ensure that the LED
displays breathing effect when the switch is OFF. If it still doesn’t work, remove the
power and contact us.
Suddenly no
1.
sound when
Check if the product has worked for long time or if the audio signal is too high. If it is,
turn off the power and turn it on again.
the product is
working
LED off
2.
Check if it is connected with the power and confirm that the voltage regulator works
well or not. If not, correctly connect it to the power according to the schematics.
3.
Check if the product works well or not. If there’s sound outputted, it’s that the LED
has been damaged.
LED on
1.
Check if the product works well or not. If not, allocate the switch to OFF, remove the
power, and then plug the power, finally turn on the switch.
Note: If the problems above still cannot be solved, maybe the product has something wrong. Now
please turn off the power, pull out the power cord from the socket and then contact us. Please refer to
chapter five for our contact information.
© 2004-2009 Sure Electronics Inc.
AA-AB340_Ver1.0_Page 9
2*15W @4Ω TA2024C
CLASS-D AUDIO AMPLIFIER
USER’S GUIDE
Chapter 4. Mechanical Drawing
FIGURE 4-1 FRONT AND BACK PANELS
FIGURE 4-2 SIDE VIEW
Note:
AA-AB340_Ver1.0_Page 10
The unit of all the data in the figures above is millimeter.
© 2004-2009 Sure Electronics Inc.
2*15W @4Ω TA2024C
CLASS-D AUDIO AMPLIFIER
USER’S GUIDE
Chapter 5. Appendix
FIGURE 5-1 CIRCUIT SCHEMATIC
R1
U1
VDD
TA2024/TSSOP
1
20k
RB1
2
1
C2 0.1uF
1
2
10K/EVM3ESX50B14
2
Y
CPUMP
DCPA2
PGND1
DCAP1
NC
36
Y
35
3
3
R5
VDD
34
1
SS14
20k
D1
2
32
30
C10
9
OUTM2
IN1
VDD2
1
D2
2
R17
20k
14
2
VDD
20k
C24
VP2
NC
IN2
DGND
25
1
0.1uF
1
2
1
1
2
2
R13
C18 Y
C17 +
0.1uF
16V/22uF/TAN
NC
R14
C15
0.47uF
D3
10R
10R
22
21
AGND3
PGND2
2
C20
C21
0.01uF
1nF
SS14
C23
D4
0.47uF
SLEEP
FAULT
20
1
2
VDD
1 SLEEP
18
Y
19
FAULT
C26 0.1uF
10K/EVM3ESX50B14
R21
3
20k
R22
20k
VCC
VCC
VDD
+5V
2
1
3
C34
+ C27
C36
0.1uF
R24 1k
+5V
VDD
R27
R28
10K
4.7K
U3 PIC16F54I/SOIC
C39
RA0
MCLR/VPP RA1
OSC1/CLK RA2
RA3
T0CLK
RB0
RB1
VDD
RB2
GND
RB3
RB4
RB5
RB6
RB7
OSC2/CLKOUT
R30 470R
MCLR
22pF
C40
0.1uF
2
2
0.1uF
1
1
C38
4
16
3
14
5
+5V
1
100uF/16V
2
R23 3k
2
+ C28
0.1uF
1
100uF/16V
2
100uF/16V
2
100uF/16V
2
100uF/16V
2
2
100uF/16V
2
2
2
0.1uF
C35
+
100uF/16V
100uF/16V
1
C33
+
2
C32
+
1
C31
+
1
C30
+
1
1
C37
1
C29
+
1
1
SW 3PDT_0
+5V
2
VOUT 4
VOUT
1
VIN
1
3
2
D51N5822
1
2
1
DJ005B
1
2
3
VAD J
U2 LM317EMP/SOT-223
SW1
J4
© 2004-2009 Sure Electronics Inc.
17
18
1
2
6
7
8
9
10
11
12
13
15
VDD
R32
R33
NC
NC
+5V
J5
MCLR
MUTE
SLEEP
RB1
R25
R26
220R
220R
D6
D7
LED(翠绿)
LED(翠绿)
FAULT
R31
4.7k
RB6/ICSPCLK
RB7/ICSPDAT
1
2
3
RB7/ICSPDAT 4
RB6/ICSPCLK 5
6
3
4
5.08型条形连接器
2
C19
0.22uF
L4 10uH 2A
2
1
23
1
1
1nF
1
24
100pF
2
C13
1
OUTP2
BIASCAP
17
R20
L3 10uH 2A
SS14
J2
2
1
2
1
CH2
C25
VDD2
NC
16
R19
1nF
1
MUTE
13
15
20k
10R
1
12
Y
R15
26
10k
R18
10R
1
C16 0.1uF
MUTE
2
1
R16
1uF
2
2
2
11
20k
C22
1
27
10k
VDD
0.47uF
2
R12
L2 10uH 2A
1
1
R13 R23
1uF
2
2
1
C14
1
6
C11
2
10
5
R12 R22
R8
2
4
RK09712200MT
J3
VP1
28
R10 20k
R11 R21
R7
C12
2
3
OUTM1
SS14
1
2
V5A
29
2
1
VDD1
16v /22uF/TAN
2
AGND2
1nF
Y
0.1uF
8
C8
0.01uF
C6
0.47uF 0.22uF
VDD
C9
1
VDD1
2
OVERLOADB
C7
C5
31
1
OUTP1
2
REF
1
6
R6 8.25K/1%
7
1
Y
R9
L1 10uH 2A
1
2
Y
NC
1
AGND1
2
5
VDDA
2
V5D
1
1
C4 0.1uF
2
1
+
100pF
33
2
4
20k
2
2
1
R4
C3
2
CH1
+5VGEN
1uF
2
1
2
R2
J1
C1
1
R29 0R
ICD Connector
AA-AB340_Ver1.0_Page 11
2*15W @4Ω TA2024C
CLASS-D AUDIO AMPLIFIER
USER’S GUIDE
Chapter 6. Contact Us
Sure Electronics Co., Ltd.
5F, Zone A,
Qinhuai Technology Innovation Center
105-2 DaMing Rd (ZIP:210022)
Nanjing
P.R.China
Tel:
+86-13601408832 (For technical questions only)
+86-25-66606340 (English service, from GMT1-10AM)
Fax:
+86-25- 66606341-866
Website:
www.sure-electronics.com
www.sure-electronics.net
AA-AB340_Ver1.0_Page 12
© 2004-2009 Sure Electronics Inc.