Texas Instruments TAS5727 User Manual

Texas Instruments TAS5727 User Manual

25w digital input amplifier with eq and 2-band drc

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This manual describes the operation of the TAS5727EVM to evaluate the performance of the TAS5727
integrated digital audio power amplifier. The main contents of this document are:
How to properly connect a TAS5727 Evaluation Module (EVM) and the details of the EVM
How to install and use the GUI to program the TAS5727EVM
How to use the audio processing features such as EQ and Dynamic Range Control (DRC)
Quick-Start Guide for the common modes in which TAS5727EVM can be used
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Equibit is a trademark of Texas Instruments.
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SLOU299 - December 2010
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TAS5727 25W Digital Input Amplifier
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Copyright © 2010, Texas Instruments Incorporated
with EQ and 2-Band DRC
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TAS5727 25W Digital Input Amplifier-with EQ and 2-Band DRC
User's Guide
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Summary of Contents for Texas Instruments TAS5727

  • Page 1: Table Of Contents

    This manual describes the operation of the TAS5727EVM to evaluate the performance of the TAS5727 integrated digital audio power amplifier. The main contents of this document are: • How to properly connect a TAS5727 Evaluation Module (EVM) and the details of the EVM •...
  • Page 2: Overview

    The TAS5727EVM evaluation module demonstrates the TAS5727 device from Texas Instruments. The TAS5727 combines a high-performance PWM processor with a class-D audio power amplifier. This EVM can be configured with two bridge-tied loads (BTL) (2.0). For detailed information about the TAS5727EVM...
  • Page 3: Tas5727Evm And Mc57Xxpsia Features

    SLOU299 – December 2010 Submit Documentation Feedback 5V Supply for System Power Analog In to ADC Figure 3. General Connection Picture TAS5727 25W Digital Input Amplifier—with EQ and 2-Band DRC Copyright © 2010, Texas Instruments Incorporated Installation Speaker Out A & B Speaker...
  • Page 4: Connecting Tas5727Evm To Mc57Xxpsia

    Speakers or loads can be connected to the outputs A-D with clip leads, or cables can be made with female connectors (JST VHR-2N) that can mate to male connectors on the EVM board. TAS5727 25W Digital Input Amplifier—with EQ and 2-Band DRC Table 1. Recommended Power Supplies Voltage Limitations (8-Ω...
  • Page 5: Software Installation

    In the absence of a digital signal source, the PCM1808 ADC can be used to convert an analog audio signal to a digital signal to the TAS5727. The DIR9001 still provides clock signals to the ADC in this process. A 12MHz crystal is installed on the MC57xxPSIA board. The ADC is an additional feature of this board to provide flexibility in sourcing an audio signal to the TAS5727.
  • Page 6 Installation Execute the GUI install program, Setup.exe. Once the program is installed, the program group and shortcut icon is created in Start → Program → Texas Instruments Inc → TAS57x UI. The GUI launches as shown in Figure The TAS5717 tab opens when the GUI starts. Select Devices → TAS57XX → TAS5727 to open the TAS5727 tab.
  • Page 7: Process Structure

    Installation www.ti.com Figure 6. Process Structure SLOU299 – December 2010 TAS5727 25W Digital Input Amplifier—with EQ and 2-Band DRC Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated...
  • Page 8: Using The Evm Software

    Connect the GUI to the EVM Open the GUI by clicking Start → All Programs → Texas Instruments Inc → TAS57x → TAS57x GUI. Connect the MC57xxPSIA board (attached to the TAS5717EVM) to your PC with a USB cable. In the Properties window, select 1-band or 2-band DRC and select Stereo or Woofer.
  • Page 9: Volume Function

    C command file can be sent by selecting the Figure 9. Volume Control Figure Figure 10. Selecting Biquad GUI TAS5727 25W Digital Input Amplifier—with EQ and 2-Band DRC Copyright © 2010, Texas Instruments Incorporated Using the EVM Software Figure 10. The Biquad GUI window will...
  • Page 10: Drc Gui

    Phase response plots (providing auto bank is enabled). DRC GUI The TAS5727 supports 1-band and 2-band DRC. Select one of the DRC modes from the Properties window. Then set the DRC threshold for each band by double-clicking the UPPERBAND or LOWERBAND block and adjusting the sliders as shown in TAS5727 25W Digital Input Amplifier—with EQ and 2-Band DRC...
  • Page 11 SLOU299 – December 2010 Submit Documentation Feedback Figure 12. DRC Options Figure 13. Advanced DRC Options TAS5727 25W Digital Input Amplifier—with EQ and 2-Band DRC Copyright © 2010, Texas Instruments Incorporated Using the EVM Software...
  • Page 12 4. Finally uncheck the shutdown box to bring the device out of Shutdown mode, and adjust the Master Volume as desired. TAS5727 25W Digital Input Amplifier—with EQ and 2-Band DRC C device address select by default. To re-define this pin as an output, Copyright ©...
  • Page 13: Jumpers And Control Utilities On Mc57Xxpsia Board

    JP1 on the daughter card is for PBTL select. Jumper IN means non-PBTL mode. For PBTL, remove this jumper. Reset is an active-low function. Pressing the master reset switch (S2) resets the TAS5727 device; USB RESET (S1) resets the USB bus. Pressing PDNZ (S4) powers down the TAS5727, and pressing MUTE (S5) mutes (volume mute) the TAS5727.
  • Page 14: Bill Of Materials

    Board Layouts, Bill of Materials, and Schematic TAS5727EVM and MC57xxPSIA Board Layouts Figure 14. TAS5727EVM Top Composite Assembly Figure 15. MC57xxPSIA Top Composite Assembly TAS5727 25W Digital Input Amplifier—with EQ and 2-Band DRC Copyright © 2010, Texas Instruments Incorporated www.ti.com SLOU299 – December 2010...
  • Page 15: Bill Of Materials

    4-40 SCREW, STEEL 0.250 IN 2029K STANDOF ,4-40 0.75IN 3/16IN DIA ALUM RND F-F C2040V-100 WIRE GRAY STRANDED 20AWG 20mm LENGTH ROHS TAS5727 25W Digital Input Amplifier—with EQ and 2-Band DRC Copyright © 2010, Texas Instruments Incorporated Vendor Manufacturer TEXAS...
  • Page 16: Schematics

    Board Layouts, Bill of Materials, and Schematic Schematics The schematic for TAS5727EVM follows. The schematics for MC57xxPSIA appear on the following pages. TAS5727 25W Digital Input Amplifier—with EQ and 2-Band DRC Copyright © 2010, Texas Instruments Incorporated www.ti.com SLOU299 – December 2010...
  • Page 17 Board Layouts, Bill of Materials, and Schematic www.ti.com SLOU299 – December 2010 TAS5727 25W Digital Input Amplifier—with EQ and 2-Band DRC Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated...
  • Page 18 Board Layouts, Bill of Materials, and Schematic www.ti.com SLOU299 – December 2010 TAS5727 25W Digital Input Amplifier—with EQ and 2-Band DRC Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated...
  • Page 19 Board Layouts, Bill of Materials, and Schematic www.ti.com SLOU299 – December 2010 TAS5727 25W Digital Input Amplifier—with EQ and 2-Band DRC Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated...
  • Page 20: Evaluation Board/Kit Important Notice

    EVALUATION BOARD/KIT IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
  • Page 21: Important Notice

    Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.

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