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Sure Electronics TK2050 User Manual

Class-d audio amplifier board
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2*100W@4Ω TK2050
Class-D Audio Amplifier Board
User's Guide
© 2004-2009 Sure Electronics Inc.
AA-AB32181_Ver1.0

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  Summary of Contents for Sure Electronics TK2050

  • Page 1 2*100W@4Ω TK2050 Class-D Audio Amplifier Board User’s Guide © 2004-2009 Sure Electronics Inc. AA-AB32181_Ver1.0...
  • Page 2: Table Of Contents

    2*100W @4Ω TK2050 CLASS-D AUDIO AMPLIFIER BOARD USER’S GUIDE Table of Contents Chapter 1. Overview ......................1 1.1 Overview ......................1 1.2 Features ....................... 2 1.3 Applications......................2 1.4 Benefits ........................ 3 1.5 Quick Start ......................3 Chapter 2. Hardware Detail ....................5 2.1 Power Connection....................
  • Page 3 2*100W @4Ω TK2050 Class-D Audio Amplifier Board NOTES: Product Version Ver 1.0 : Document Version Ver 1.0 : © 2004-2009 Sure Electronics Inc AA-AB32181_Ver1.0_Page ii...
  • Page 4: Chapter 1. Overview

    Chapter 1. Overview Overview Welcome to use this 2*100W Class-D audio amplifier board by Sure Electronics. As an upgraded version of the original AA-AB013, this board integrates an external extensible interface to connect the matching product of a volume control board and a rotary encoder board for volume control.
  • Page 5: Features

    2*100W @4Ω TK2050 Class-D Audio Amplifier Board FIGURE 1-2 ACCESSORIES Note: The diagrams above are used for reference only. 1.2 Features A perfect "Class D" architecture Wide power supply range: 12V to 30V, maximum 32V Frequency response: 20Hz to 20KHz(±3dB)
  • Page 6: Benefits

    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. © 2004-2009 Sure Electronics Inc. AA-AB32181_Ver1.0_Page 3...
  • Page 7 2*100W @4Ω TK2050 Class-D Audio Amplifier Board FIGURE 1-4 CASCADING SCHEMATIC Note: GND should be grounded or connected to the housing of the device. © 2004-2009 Sure Electronics Inc AA-AB32181_Ver1.0_Page 4...
  • Page 8: Chapter 2. Hardware Detail

    2*100W @4Ω TK2050 CLASS-D AUDIO AMPLIFIER BOARD USER’S GUIDE Chapter 2. Hardware Detail 2.1 Power Connection To power the amplifier board, use either jack or terminal blocks. Pay attention to the polarity when connecting power supply. FIGURE 2-1 POWER CONNECTION...
  • Page 9: Output Connections

    2*100W @4Ω TK2050 Class-D Audio Amplifier Board FIGURE 2-2 INPUT CONNECTION TABLE 2-2 INPUT CONNECTION Connector Mark Channel Description Channel 1 Input RCA connector Channel 2 Input Channel 1 Input Terminal Blocks Channel 2 Input Note: You are allowed to feed only one group (dual channel) of audio signal to the amplifier board at a time.
  • Page 10: Dc Offset

    “FAULT (D5)” will be illuminated in blue when the board works in SLEEP mode or there’s error. Please refer to the connection schematic of the board for the LED location and refer to the manual of TK2050 for details of “FAULT”. FIGURE 2-4 LED INDICATOR Note: When power on, the “FAULT (D5)”...
  • Page 11: Volume Control

    2*100W @4Ω TK2050 Class-D Audio Amplifier Board 2.6 Volume Control The on-board external extensible interface allows for the connection of a rotary encoder board and a volume control board for volume control. The two boards are not provided here but as another product (product No.: AA-AA11117) sold on Sure’s webstore. If you use the two boards, please set K1, K2, K3 and K4 of the on-board DIP switch OFF.
  • Page 12: Notes

    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. © 2004-2009 Sure Electronics Inc. AA-AB32181_Ver1.0_Page 9...
  • Page 13: Chapter 3. Electrical Characteristics

    2*100W @4Ω TK2050 CLASS-D AUDIO AMPLIFIER BOARD USER’S GUIDE Chapter 3. Electrical Characteristics Following table lists all typical data. For full specification, please refer to the data sheet of Tripath’s TK2050 chip. TABLE 3-1 ELECTRICAL CHARACTERISTICS Parameter Condition Min. Typ.
  • Page 14 2*100W@4Ω TK2050 Class-D Audio Amplifier Board Thermal Warning* 130℃ Thermal Shutdown 150℃ Note: *The chip’s specifications from Tripath’s TK2050 Data Sheet. © 2004-2009 Sure Electronics Inc. AA-AB32141_Ver1.0_Page 11...
  • Page 15: Chapter 4. Mechanical Drawing

    2*100W @4Ω TK2050 CLASS-D AUDIO AMPLIFIER BOARD USER’S GUIDE Chapter 4. Mechanical Drawing FIGURE 4-1 MECHANICAL DRAWING © 2004-2009 Sure Electronics Inc. A-AB32181_Ver1.0_Page 12...
  • Page 16: Chapter 5. Appendix

    2*100W @4Ω TK2050 CLASS-D AUDIO AMPLIFIER BOARD USER’S GUIDE Chapter 5. Appendix FIGURE 5-1 SCHEMATIC 1 U1 PIC16F690/SSOP con6 RA5/OSC1 RA0/AN0/PGD RA4/AN3/OSC2 RA1/AN1/ref /PGC MCLR NTC2 RA3/MCLR/Vpp RA2/AN2 NTC1 RC5/CCP1 RC0/AN4 HUMTE RC1/AN5 MCLR RC3/AN7 RC2/AN6 RC6/AN8/SS RB4/AN10/SDI/SDA RC7/AN9/SDO RB5/AN11/RX/DT 0.1uF/50V...
  • Page 17 2*100W @4Ω TK2050 Class-D Audio Amplifier Board FIGURE 5-2 SCHEMATIC 2 CON2 D1 SS34/DO-214AB U2 LM317EMP/SOT-223 U3 LM317EMP/SOT-223 D2 SS34/DO-214AB VOUT VOUT +12V VOUT VOUT 0.1uF/50V CON2 0.1uF/50V 100uF/10V 0.1uF/50V 0.1uF/50V 100uF/25V 0.1uF/50V 470R LED/G DJ005B CON2 CON2 220uF/50V 220uF/50V 220uF/50V 0.22uF/MKP...
  • Page 18 J17 CON2 Y 2B IN2A 0.68uF/MKP VDD1 VCC2A 10uH OUT- VDD2 OUT2A1 VSS1 OUT2A2 VSS2 0.1uF/50V 0.1uF/50V GND2A VCCSIGN1 VCCSIGN2 GNDREG VCC2B 0.1uF/50V OUT2B OUT2B1 Y 2B IN2B OUT2B2 GNDCLEAN 1uF/50V GNDSUB GND2B © 2004-2009 Sure Electronics Inc. AA-AB009_Ver1.0_Page 15...
  • Page 19: Chapter 6. Contact Us

    2*100W @4Ω TK2050 CLASS-D AUDIO AMPLIFIER BOARD 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)