Texas Instruments AMC7812EVM-PDK User Manual
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Texas Instruments AMC7812EVM-PDK User Manual

Texas Instruments AMC7812EVM-PDK User Manual

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This user's guide describes the characteristics, operation, and use of the AMC7812 evaluation module
(EVM). 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 are also included.
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AMC7812EVM Software Overview
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AMC7812EVM Documentation
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AMC7812EVM Hardware Setup
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AMC7812 Test Board Block Diagram
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SDM-USB-DIG Platform Block Diagram
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AMC7812EVM Installer Directory
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AMC7812EVM Install Path
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Low-Level Configuration Page
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ADC Page
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DAC Page
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ALARMS Page
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GPIO + Temp Page
Submit Documentation Feedback
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Copyright © 2010-2014, Texas Instruments Incorporated
Contents
List of Figures
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User's Guide
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Summary of Contents for Texas Instruments AMC7812EVM-PDK

  • Page 1: Table Of Contents

    DAC Clear Triggers ......................ALARMS Page ......................... Alarm LEDs ..................... Alarm LEDs Activated ....................Alarm Control Registers ......................GPIO + Temp Page SBAU177D – September 2010 – Revised August 2014 AMC7812EVM-PDK User’s Guide Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...
  • Page 2 AMC7812EVM ADC Signal Connections ................AMC7812EVM DAC Signal Connections .................. AMC7812EVM GPIO Signal Definition ......................Conversion Rates ......................Bill of Materials AMC7812EVM-PDK User’s Guide SBAU177D – September 2010 – Revised August 2014 Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 3: Sbau177D - September 2010 - Revised August 2014

    AMC7812EVM Kit Contents Table 1 details the contents of the EVM kit. Contact the Texas Instruments Product Information Center nearest you if any component is missing. TI highly recommends to check the TI website (www.ti.com) to verify that you have the latest versions of the related software.

  • Page 4: Amc7812Evm Hardware Setup

    Connection 20-Pin Conn. To AMC7812 12-CH DAC SDM- Vout USB-DIG 16-CH ADC Input Figure 2. AMC7812 Test Board Block Diagram AMC7812EVM-PDK User’s Guide SBAU177D – September 2010 – Revised August 2014 Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...
  • Page 5 GPIO – Control output or measure input MISO SPI data input (MISO) DIG_GPIO11 GPIO – Control output or measure input SBAU177D – September 2010 – Revised August 2014 AMC7812EVM-PDK User’s Guide Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...
  • Page 6 (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 AMC7812EVM-PDK User’s Guide SBAU177D – September 2010 – Revised August 2014 Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 7: Amc7812Evm Software Setup

    (Note: On XP machines, choose to have the system automatically find the driver or software.) Figure 4. AMC7812EVM Installer Directory SBAU177D – September 2010 – Revised August 2014 AMC7812EVM-PDK User’s Guide Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...
  • Page 8 AMC7812EVM Software Setup www.ti.com Figure 5. AMC7812EVM Install Path AMC7812EVM-PDK User’s Guide SBAU177D – September 2010 – Revised August 2014 Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 9: Amc7812Evm Hardware Overview

    To connect the SDM-USB-DIG to the EVM board, align and firmly connect the female and male ends of the 20-pin connectors (see Figure 6). Verify the connection is snug, as loose connections may cause intermittent operation. SBAU177D – September 2010 – Revised August 2014 AMC7812EVM-PDK User’s Guide Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 10: Typical Hardware Connections On The Amc7812Evm

    The CDC driver is used for communication between the SDM- USB-DIG and PC. Figure 7. Confirmation of SDM-USB-DIG Platform Driver Installation AMC7812EVM-PDK User’s Guide SBAU177D – September 2010 – Revised August 2014 Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...
  • Page 11 To use the channels, remove the shunts and apply the desired voltage input to ADC2 or ADC3. SBAU177D – September 2010 – Revised August 2014 AMC7812EVM-PDK User’s Guide Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...
  • Page 12 Use a shunt to connect JP6 to remove the connection to the onboard remote temperature sensors. AMC7812EVM-PDK User’s Guide SBAU177D – September 2010 – Revised August 2014 Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 13: Amc7812Evm Gui Location

    The AMC7812 Software Reset button, shown in Figure 10, resets the AMC7812 device and resets all registers to their default settings. SBAU177D – September 2010 – Revised August 2014 AMC7812EVM-PDK User’s Guide Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 14: Software Reset Button

    12 single-ended (ADC4 to ADC15). The analog input range for the device can be selected as 0 V to Vref (2.5 V) or 0 V to 2 × Vref (5 V). Figure 12 displays the ADC Page. AMC7812EVM-PDK User’s Guide SBAU177D – September 2010 – Revised August 2014 Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 15: Adc Block Activation Sequence

    CH0 to CH3 can be selected by using the dropdown menu and choosing various options such as differential mode, single-ended mode, and so forth, as shown in Figure Figure 15. ADC CH0 to CH3 Config SBAU177D – September 2010 – Revised August 2014 AMC7812EVM-PDK User’s Guide Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 16: Adc External Ref Value

    To stop the periodic updates press the Auto Read button once again. Figure 17 shows the ADC Report window. Additionally, the Clear ADC Data button clears the memory of the chart. AMC7812EVM-PDK User’s Guide SBAU177D – September 2010 – Revised August 2014 Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 17: Adc Report Window

    The DAC page also displays two input fields under the Program DAC column, shown in Figure Figure 19. Program DAC Registers SBAU177D – September 2010 – Revised August 2014 AMC7812EVM-PDK User’s Guide Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 18: Dac Gain Button

    The ALARMS page allows the user to access or observe the AM7812 registers and register bits related to common programmable settings and alarms of the AMC7812. Figure 24 displays the ALARMS page of the AMC7812EVM. AMC7812EVM-PDK User’s Guide SBAU177D – September 2010 – Revised August 2014 Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 19: Alarm Leds

    Figure 26. Alarm LEDs Activated To associate the ALARM pin with an alarm event, select the appropriate event. Figure 27 displays these checkboxes. SBAU177D – September 2010 – Revised August 2014 AMC7812EVM-PDK User’s Guide Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 20: Alarm Control Registers

    Figure 30 shows where to program the limits by entering the desired Celsius values into the low or high limit fields. AMC7812EVM-PDK User’s Guide SBAU177D – September 2010 – Revised August 2014 Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 21: Threshold Limit Configuration

    GPIO register. Press the Generate Write/Read button to write to or read from the GPIO pin. Figure 33. GPIO Write/Read SBAU177D – September 2010 – Revised August 2014 AMC7812EVM-PDK User’s Guide Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...
  • Page 22 AMC GPIO3 REF-DAC GPIO-3 AGND 0.01 F DACREF SEL AGND DACREF AGND 2.5V REF Figure 34. AMC7812EVM Schematic (1 of 3) AMC7812EVM-PDK User’s Guide SBAU177D – September 2010 – Revised August 2014 Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 23: Amc7812Evm Schematic (2 Of 3)

    COM4 DIODE SELECT AGND AGND TS12A44514PW MMBT3906 AGND ADC3 17.4 2700pF OPA2320AIDGK AGND Figure 35. AMC7812EVM Schematic (2 of 3) SBAU177D – September 2010 – Revised August 2014 AMC7812EVM-PDK User’s Guide Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 24: Amc7812Evm Schematic (3 Of 3)

    1-2 selects onboard supply (default VDUT) 2-3 selects external supply (pin J6-3) 10 F Figure 36. AMC7812EVM Schematic (3 of 3) AMC7812EVM-PDK User’s Guide SBAU177D – September 2010 – Revised August 2014 Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 25: Amc7812Evm Pcb Components Layout

    AMC7812EVM PCB Components Layout Figure 37 shows the layout of the components for the AMC7812EVM board. Figure 37. AMC7812EVM PCB Components Layout SBAU177D – September 2010 – Revised August 2014 AMC7812EVM-PDK User’s Guide Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 26: Bill Of Materials

    R1, R2, R7, R8, R9, R10, R11, R17, R27, RES, 20.0k ohm, 1%, 0.1W, 0603 Yageo America RC0603FR-0720KL R28, R29, R30, R76 AMC7812EVM-PDK User’s Guide SBAU177D – September 2010 – Revised August 2014 Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 27: Amc7812Evm-Pdk User's Guide

    Precision, 20MHz, 0.9pA, Low-Noise, RRIO, CMOS Operational Amplifier with Shutdown, Texas Instruments OPA2320AIDGK DGK0008A Bumpon, Hemisphere, 0.44 X 0.20, Clear SJ-5303 (CLEAR) Shunt, 100mil, Gold plated, Black 969102-0000-DA SBAU177D – September 2010 – Revised August 2014 AMC7812EVM-PDK User’s Guide Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated...

  • Page 28: Sbau177D - September 2010 - Revised August 2014

    Revision C History Changes from B Revision (June 2014) to C Revision ....................Page ..............• Changed title of document to AMC7812EVM-PDK User’s Guide. Revision B History Changes from A Revision (May 2013) to B Revision ...................... Page • Changed entire document: format and content. This user guide is now patterned after the AMC7832EVM user's guide.
  • Page 29 ADDITIONAL TERMS AND CONDITIONS, WARNINGS, RESTRICTIONS, AND DISCLAIMERS FOR EVALUATION MODULES Texas Instruments Incorporated (TI) markets, sells, and loans all evaluation boards, kits, and/or modules (EVMs) pursuant to, and user expressly acknowledges, represents, and agrees, and takes sole responsibility and risk with respect to, the following: 1.
  • Page 30 RADIO FREQUENCY REGULATORY COMPLIANCE INFORMATION FOR EVALUATION MODULES Texas Instruments Incorporated (TI) evaluation boards, kits, and/or modules (EVMs) and/or accompanying hardware that is marketed, sold, or loaned to users may or may not be subject to radio frequency regulations in specific countries.
  • Page 31 Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2014, Texas Instruments Incorporated spacer Important Notice for Users of EVMs Considered “Radio Frequency Products”...

  • Page 32: Important Notice

    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 AMC7812EVM-PDK...

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