Texas Instruments AMC7834EVM User Manual
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Texas Instruments AMC7834EVM User Manual

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This user's guide describes the characteristics, operation, and use of the AMC7834 evaluation boards
(EVMs). This user's guide also discusses the proper setup and configuration of software and hardware,
and reviews various aspects of program operation. A complete circuit description, schematic diagram, and
bill of materials (BOM) are also included.
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1.1
1.2
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2.1
2.2
2.3
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3.1
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4.1
4.2
4.3
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4.6
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5.1
5.2
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6.1
6.2
6.3
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AMC7834EVM Hardware Setup
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Microsoft, Windows, Excel are registered trademarks of Microsoft Corporation.
SLAU608B - December 2014 - Revised May 2016
AMC7834 Evaluation Module
Contents
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Copyright © 2014-2016, Texas Instruments Incorporated
SLAU608B - December 2014 - Revised May 2016
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AMC7834 Evaluation Module
User's Guide
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Summary of Contents for Texas Instruments AMC7834EVM

  • Page 1: Table Of Contents

    SDM-USB-DIG Platform Block Diagram ..................AMC7834EVM Installer Directory ....................AMC7834EVM Install Path ..............Typical Hardware Connections on the AMC7834EVM ............Confirmation of SDM-USB-DIG Platform Driver Installation ..................... AMC7834EVM GUI Location Microsoft, Windows, Excel are registered trademarks of Microsoft Corporation. SLAU608B – December 2014 – Revised May 2016...
  • Page 2 ..................AMC7834EVM GUI – Power On ..................... Software Reset Button .................... Low Level Configuration Page ........................ADC Page ................. Powerdown Mode Reference Selection ......................ADC Channel MUX ......................ADC Channel MUX ......................ADC Controls Block ........................ADC Chart ........................

  • Page 3: Overview

    The following document provides information regarding Texas Instruments integrated circuits used in the assembly of the AMC7834EVM. This user's guide is available from the TI web site under literature number SLAU608. Any letter appended to the literature number corresponds to the document revision that is current at the time of the writing of this document.

  • Page 4: Amc7834Evm Hardware Setup

    SDM-USB-DIG Figure 1. AMC7834EVM Hardware Setup Theory of Operation for AMC7834 Hardware A block diagram of the AMC7834EVM test board is displayed in Figure 2. The EVM board provides test points and connections for the supplies, internal reference, ground connections, SPI inputs, ADC inputs, current sense inputs, external temp sensing diodes, and analog outputs of the DAC.

  • Page 5: Signal Definitions Of J4 (20-Pin Male Connector Socket)

    AMC7834EVM Hardware Setup www.ti.com Signal Definitions of J4 (20-Pin Male Connector Socket) The AMC7834EVM includes a 20-pin connector socket used to communicate between the EVM and the SDM-USB-DIG platform. The pin out of the J4 connector is shown in Table Table 3.

  • Page 6: Theory Of Operation For Sdm-Usb-Dig Platform

    (Hi-Z, 3.3 V or 5 V) Switched Power USB +5.0 V Power Switching +3.3 V Figure 3. SDM-USB-DIG Platform Block Diagram AMC7834 Evaluation Module SLAU608B – December 2014 – Revised May 2016 Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated...

  • Page 7: Amc7834Evm Software Setup

    (x86)\AMC7834EVM. The software installation automatically copies the required drivers for the SDM-USB- DIG and AMC7834EVM to the PC. After the software is installed, connecting the SDM-USB-DIG to a USB port may launch a driver installation dialog. Choose the ‘Install this driver software anyway’ option to continue with installation.

  • Page 8: Amc7834Evm Hardware Overview

    Table 4. The table also displays the default configurations of all jumper connections on the AMC7834EVM. Connect the USB extender cable from the SDM-USB-DIG to the PC, and the +24- V wall adapter to the J7 terminal. Table 4. Default Jumper Settings...

  • Page 9: Connecting The Hardware

    This section describes the various power configurations that can be used by the EVM. The AMC7834EVM provides terminal blocks for external supplies as well as (optional) onboard power conditioning to convert a 24-V supply into a +5-V, –5-V, and +2.5-V supply. Jumpers JP11, JP12, JP13,...

  • Page 10: Adc/Sense Signal Pins

    AMC7834EVM Hardware Overview www.ti.com Table 5. AMC7834EVM Power Shunt Jumper Settings Jumper Default Position Function JP11 Shunt on 1-2 Selecting Internal/External AVDD/DVDD • 1-2: Connects AVDD/DVDD pins to onboard +5-V • 2-3: Connects AVDD/DVDD pins to external connector (J8) JP12...

  • Page 11: Dac Signal Pins

    –4- to +1-V, –5- to 0-V, and 0- to 5-V range. The unipolar DACs range can be set from the following two ranges: 0 to 5 V, and 2.5 to 7.5 V. Table 9. AMC7834EVM DAC Signal Connections Name...

  • Page 12: 4.10 Digital Inputs And Gpio Signal Pins

    The four GPIO signals on the EVM can be measured on the J6 header. The J6 header also includes most of the digital inputs to the AMC7834 device — these inputs include Sleep1, Sleep2, ALARMOUT, RESET, DACTRIG, and DIGTEST. A signal description of the J6 header is provided in Table Table 12. AMC7834EVM GPIO Signal Definition Name Connector Description...

  • Page 13: Amc7834Evm Software Overview

    USB extender cable is properly connected to both the SDM-USB-DIG and PC, and relaunch the GUI. This issue can also occur if the CDC driver is installed incorrectly. The AMC7834EVM software may need to be reinstalled.
  • Page 14 5.2.2 AMC7834EVM Low Level Configuration Page The AMC7834EVM features a register map page that allows access to low-level communication by directly writing to and reading from the AMC7834 device’s registers. Selecting a register on the Register Map list presents a description of the values in that register and also displays information such as the register’s address, default value, size, and current value.
  • Page 15 14. Selecting a channel enables the button’s respective indicator field for register readout. To view the contents of the read in volts, select Display ADC Value in Volts. SLAU608B – December 2014 – Revised May 2016 AMC7834 Evaluation Module Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated...
  • Page 16 (Auto) Read. The contents of the chart can be copied into Microsoft Excel ® ® right clicking on the chart and selecting Export Data to Excel. AMC7834 Evaluation Module SLAU608B – December 2014 – Revised May 2016 Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated...
  • Page 17 AMC7834EVM Software Overview www.ti.com Figure 17. ADC Chart SLAU608B – December 2014 – Revised May 2016 AMC7834 Evaluation Module Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated...
  • Page 18 DAC input fields are respectively highlighted in green and red boxes. Either one of the DAC input fields can be programmed with the desired DAC output voltage or hexadecimal value. Figure 19. Program DAC Registers AMC7834 Evaluation Module SLAU608B – December 2014 – Revised May 2016 Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated...
  • Page 19 When cleared to ‘0’, the PA_ON terminal is in the ‘off’ state, when set to ‘1’, the PA_ON terminal is set to the ‘on’ state. Figure 22 displays the PA ON button. Figure 22. PA ON Button SLAU608B – December 2014 – Revised May 2016 AMC7834 Evaluation Module Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated...
  • Page 20 DAC internal monitoring channels, and the bipolar DAC outputs. Figure 23 displays the ALARMS Page of the AMC7834EVM. The page displays the name of each alarm, shown under the Alarm Name column, and provides information such as the Value, High Limit, Low Limit, and Alarm Status, with additional options.
  • Page 21 Figure 27. Alarmout 5.2.6 AMC7834EVM GPIO Page The AMC7834 GPIO Page features the four (GPIO1–GPIO4) GPIOs of the AMC7834 device. SLAU608B – December 2014 – Revised May 2016 AMC7834 Evaluation Module Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated...
  • Page 22 Boolean value of the GPIO register. Press the W/R button to write to or read from the GPIO pin. Figure 29. GPIO Write/Read AMC7834 Evaluation Module SLAU608B – December 2014 – Revised May 2016 Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated...

  • Page 23: Amc7834Evm Documentation

    AMC7834EVM Documentation This section contains the schematic diagrams and complete BOM for the AMC7834EVM. Documentation information for the SDM-USB-DIG platform can be found in the SDM-USB-DIG Platform User’s Guide (SBOU136), available at the TI website at www.ti.com. AMC7834EVM Board Schematic...
  • Page 24 10 F NEG_5V_SUP JP14 VDUT 600 ohm IOVDD 10 F 0.1 F 0.1 F Figure 31. AMC7834EVM Schematic (2 of 2) AMC7834 Evaluation Module SLAU608B – December 2014 – Revised May 2016 Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated...

  • Page 25: Amc7834Evm Pcb Components Layout

    AMC7834EVM Documentation www.ti.com AMC7834EVM PCB Components Layout Figure 32 shows the layout of the components for the AMC7834EVM board. Figure 32. AMC7834EVM PCB Components Layout SLAU608B – December 2014 – Revised May 2016 AMC7834 Evaluation Module Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated...

  • Page 26: Amc7834 Test Board Bill Of Materials

    AMC7834EVM Documentation www.ti.com AMC7834 Test Board Bill of Materials Table 15 lists the BOM for this EVM. Table 15. AMC7834EVM Bill of Materials Item Quantity Designator Description Manufacturer Part Number Printed Circuit Board 6572459 C1, C2, C3, C4, C14, C15,...
  • Page 27 Added a note to the Default Jumper Settings table............• Changed the text in the AMC7834EVM Power Configurations section........• Deleted JP6 row (the last row) of the AMC7834EVM Power Shunt Jumper Settings table................• Changed the Reference Configuration Settings table............•...
  • Page 28 STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, or documentation (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms and conditions set forth herein. Acceptance of the EVM is expressly subject to the following terms and conditions.
  • Page 29 FCC Interference Statement for Class B EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 30 【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの 措置を取っていただく必要がありますのでご注意ください。 1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用 いただく。 2. 実験局の免許を取得後ご使用いただく。 3. 技術基準適合証明を取得後ご使用いただく。 なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。 上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ ンスツルメンツ株式会社 東京都新宿区西新宿６丁目２４番１号 西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧くださ い。http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page SPACER EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.
  • Page 31 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2015, Texas Instruments Incorporated...
  • Page 32 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.
  • Page 33 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments AMC7834EVM...

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