Sure Electronics TA2024 User Manual

2 X 15Watt Class-D Audio

Amplifier - TA2024

User’s Guide

2 X 15Watt Class-D Audio Amplifier - TA2024

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

Safety Precautions:

Operation Precautions:

electric shock.

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.

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. Take 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.

2 X 15WATT CLASS-D AUDIO

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AMPLIFIER - TA2024

USER’S GUIDE

Table of Contents

Chapter 1. Overview ..........................................................................................................1

1.1 Overview.............................................................................................................. 1

1.2 Accessory............................................................................................................ 1

1.3 Features............................................................................................................... 1

1.4 Applications......................................................................................................... 2

1.5 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 Power Connection............................................................................................... 5

2.2 Switch Setting ..................................................................................................... 5

2.3 Input Connection................................................................................................. 6

2.4 Output Connection.............................................................................................. 6

2.5 Volume Control.................................................................................................... 7

2.6 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. Contact Us .....................................................................................................11

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NOTES:

Product Version ： Ver 1.0

Document Version ： Ver 1.0

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1.1 Overview

2 X 15WATT CLASS-D AUDIO

AMPLIFIER - TA2024

USER’S GUIDE

Chapter 1. Overview

Welcome to use this self-made 2*15W digital control audio amplifier board. This product

is well-known for its small size, portable, elegant and its outer casing fully made from

aluminum alloy which makes it tough and durable. As an ideal Class-D audio power

amplifier and integrated with TA2024 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.

AA-AB32159 integrates a high-quality rotary encoder which employs high-quality digital

volume control IC ensuring precise shaft rotation and accurate volume adjustment.

AA-AB32159 supports dual-channel amplification and each channel is rated at 15W.

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 4 or 8 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 power adapter

3. One user’s manual

1.3 Features

1 Ideal Class-D power amplifier

2 Range of power supply: DC9V-14V

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3 Fully made from aluminum alloy, compact, pleasing, fashionable and durable

4 High-quality digital volume control IC and original TA2024 chip ensures long time use

5 High input sensitivity

6 “Audiophile” Quality Sound:

0.1% THD+N @ 9W, 4;

0.1% THD+N @ 6W, 8;

7 High Power

15W @ 4, 10% THD+N

10W @ 8, 10% THD+N

8 High Efficiency

81% @ 15W, 4

90% @ 10W, 8

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 2—volume knob

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Overview

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1.5.2 Back panel

FIGURE 1-4 (POWER INPUT, SPEAKER OUTPUT AND AUDIO SIGNA L INPU T)

3—speaker output terminal 4—audio signal input terminal

5—serial number 6—power input

1.5.3 Connection

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FIGURE 1-5 CONNECTING SCHEMATICS

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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 Please connect the power voltage regulator with the audio power amplifier according to the following schematics:

FIGURE 2-1 POWER CONNECTION SCHEMATIC

2 X 15WATT CLASS-D AUDIO

AMPLIFIER - TA2024

USER’S GUIDE

Chapter 2. Hardware Detail

Chapter 3 for basic parameters

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.

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FIGURE 2-2 SWITCH SETTING

TABLE 2-1 SWITCH FUNCTION

State Function LED state

ON Amplifier working LED always lighting

OFF Amplifier not working 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.

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FIGURE 2-4 OUTPUT CONNECTION

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Hardware Detail

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 digital 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.

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Chapter 3. Electrical Characteristics

3.1 Basic Parameters

Basic parameter tested @DC12V 4ohm (except for the parameters marked with *)

TABLE 3-1 BASIC PARAMETERS

Parameter Min Typical Max

Power voltage 9V 12V 14V

Input Sensitivity 642mV 662mV 680mV

Frequency - 20Hz-20KHz(±3dB) -

Output power*

= 12V, RL = 4）

（V

CC

2 X 15WATT CLASS-D AUDIO

AMPLIFIER - TA2024

USER’S GUIDE

9W@4ohm, THD+N<0.1%

-

12W@4ohms, THD+N<1%

15W@4ohms, THD+N<10%

-

Output power *

= 12V, RL = 8）

（V

CC

（THD+N）

Efficiency -

Signal/Noise Ratio 90dB(A weighted) 90dB(A weighted) -

Minimum Load

Impendence

Input Impendence 10K 20K -

Power Gain 25dB 27.6dB -

Working Temperature 0℃ 25℃ 55℃

Note: *The chip specifications by Tripath.

-

3.2 ohms 4 ohms -

10W @ 8ohms,

THD+N<10%

0.03% THD+N @ 9W, 4

0.1% THD+N @11W, 4

0.1% THD+N @6W, 8

84% @ 15W, 4

90% @ 10W, 8

-

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:

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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

sound when

the product is

working

LED off 2. Check if it is connected with the power and confirm that the voltage regulator works

LED on 1. Check if the product works well or not. If not, allocate the switch to OFF, remove the

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.

1. 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.

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.

power, and then plug the power, finally turn on the switch.

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USER’S GUIDE

Chapter 4. Mechanical Drawing

FIGURE 4-1 FRONT AND BACK PANELS

FIGURE 4-2 SIDE VIEW

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AMPLIFIER - TA2024

USER’S GUIDE

Chapter 5. Contact Us

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: +86-25-68154800-860 Fax: +86-25-68154891-832 Website: www.sure-electronics.com Email: customerservice@sure-electronics.com

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