Texas Instruments DACx0504 series User Manual

User's Guide

SLAU735A–July 2017–Revised October 2017

DACx0504 Evaluation Module

This user's guide describes the characteristics, operation, and use of the DACx0504 evaluation boards (EVMs). This user’s guide also discusses the proper setup and configuration of both software and hardware, and reviews various aspects of program operation. A complete circuit description, schematic diagram, and bill of materials (BOM) are also included in this document.

1 Overview...................................................................................................................... 3

1.1 DACx0504EVM Kit Contents...................................................................................... 3

1.2 Related Documentation From Texas Instruments.............................................................. 3

2 DACx0504EVM Hardware Setup .......................................................................................... 4

2.1 Theory of Operation for DACx0504 Hardware.................................................................. 4

2.2 Signal Definition of USB2ANY .................................................................................... 5

3 DACx0504EVM Software Setup ........................................................................................... 6

3.1 Operating Systems for DACx0504EVM Software .............................................................. 6

3.2 DACx0504EVM Software Installation ............................................................................ 6

4 DACx0504EVM Hardware Overview...................................................................................... 7

4.1 Electrostatic Discharge Warning.................................................................................. 7

4.2 Connecting the Hardware.......................................................................................... 7

4.3 DACx0504EVM Power Configurations........................................................................... 7

4.4 DAC Signal Pins .................................................................................................... 8

4.5 SPI Communication Signals and Digital Inputs................................................................. 8

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Contents

DACx0504 Evaluation Module

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5 DACx0504EVM Software Overview ...................................................................................... 9

5.1 Starting the DACx0504EVM Software ........................................................................... 9

5.2 DACx0504EVM Software Features .............................................................................. 9

6 DACx0504EVM Documentation.......................................................................................... 12

6.1 DACx0504EVM Board Schematic .............................................................................. 12

6.2 DACx0504EVM PCB Components Layout..................................................................... 13

6.3 DACx0504EVM Bill of Materials................................................................................. 15

List of Figures

1 DACx0504EVM Hardware Setup .......................................................................................... 4

2 DACx0504EVM Block Diagram............................................................................................ 4

3 Launching Software Setup ................................................................................................. 6

4 DACx0504EVM Install Path ................................................................................................ 6

5 DAC Output Connection Headers......................................................................................... 8

6 DACx0504EVM GUI Location.............................................................................................. 9

7 DACx0504EVM GUI—Power On .......................................................................................... 9

8 DACx0504EVM Software Page Selection................................................................................ 9

9 Low Level Configuration Page............................................................................................ 10

10 Low Level Configuration Page Available Options...................................................................... 10

11 High Level Configuration Page........................................................................................... 11

12 DACx0504EVM Board Schematic ....................................................................................... 12

13 DACx0504EVM PCB Components Layout ............................................................................. 13

14 Top Layer ................................................................................................................... 13

15 Top Solder .................................................................................................................. 14

16 Bottom Layer................................................................................................................ 14

1 DACx0504EVM Kit Contents............................................................................................... 3

2 Related Documentation..................................................................................................... 3

3 J1 USB2ANY Signal Definition............................................................................................. 5

4 J1 Digital Signal Test Points ............................................................................................... 5

5 Default Jumper Settings .................................................................................................... 7

6 DACx0504EVM Power Supply Configuration............................................................................ 7

7 DACx0504EVM DAC Signal Connections................................................................................ 8

8 SPI Signal Definition ........................................................................................................ 8

9 DACx0504EVM Bill of Materials.......................................................................................... 15

Trademarks

Microsoft, Windows are registered trademarks of Microsoft Corporation. All other trademarks are the property of their respective owners.

List of Tables

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1 Overview

This EVM features the DACx0504 device, a 16-bit/14-bit/12-bit, four-channel, buffered voltage-output digital-to-analog converter (DAC). This device includes a 2.5-V, 5 ppm/°C internal reference giving full scale output voltage ranges of 1.25 V, 2.5 V, or 5 V. These devices are guaranteed monotonic and provide exceptional linearity of ±1 LSB INL in very small package options: WCSP (16), QFN (16), or TSSOP (16). The EVM features the 3-mm × 3-mm QFN package.

1.1 DACx0504EVM Kit Contents

Table 1 details the contents of the EVM kit. Contact the TI Product Information Center nearest you if any

component is missing. TI highly recommends that the user verify latest versions of the related software at the TI website, TI.com.

Table 1. DACx0504EVM Kit Contents

Item Quantity

DACx0504EVM PCB evaluation board 1

USB2ANY 1

1.2 Related Documentation From Texas Instruments

The following document provides information regarding Texas Instruments integrated circuits used in the assembly of the DACx0504EVM. This user's guide is available from the TI web site under literature number SLAU735. Any letter appended to the literature number corresponds to the document revision that is current at the time of the writing of this document. Newer revisions may be available from the TI web site at TI.com, or call the Texas Instruments Literature Response Center at (800) 477-8924 or the Product Information Center at (972) 644-5580. When ordering, identify the document by both title and literature number.

Overview

Table 2. Related Documentation

Document Literature Number

DACx0504 product data sheet SLASE73

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DACx0504 Evaluation Module

USB2ANY

Connection

DACx0504

4-CH Output,

Gain,

RSTSEL,

REFDIV,

LDAC

5-V Reference

(Optional)

External VDD/VIO Power

(Test Point)

Power

SPI

Power Supply PC

DACx0504EVM USB2ANY

DACx0504EVM Hardware Setup

2 DACx0504EVM Hardware Setup

This section provides the overall system setup for the EVM. A PC runs software that communicates with the USB2ANY platform, which generates the optional VIO power and digital signals used to communicate with the EVM board. Test point connections are included on the EVM board for external power supplies.

Figure 1 displays the system setup for the DACx0504EVM.

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Figure 1. DACx0504EVM Hardware Setup

2.1 Theory of Operation for DACx0504 Hardware

A block diagram of the DACx0504EVM is displayed in Figure 2. The EVM board connects to the external power supplies VDD and VIO through test points. The 16-pin header provides the four DAC outputs and pullup or pulldown option for GAIN, RSTSEL, REFDIV, and LDAC inputs. The other two headers provide options for external reference connection and VIO input from USB2ANY. The SPI signals can be provided either via the USB2ANY header or test points. The USB2ANY controls the GAIN, RSTSEL, REFDIV and LDAC pins by default.

Figure 2. DACx0504EVM Block Diagram

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2.2 Signal Definition of USB2ANY

The DACx0504EVM provides a hardware connector (J1) that connects to the USB2ANY interface board, which can supply VIO power and is responsible for providing the SPI commands sent from the PC GUI software. Optionally, the VIO supply can be provided through an external supply, and all digital communication lines can be accessed through their respective digital test points. This information is provided in Table 3.

Table 3. J1 USB2ANY Signal Definition

Pin on J1 Signal Description

1 GPIO7 General purpose I/O 2 CS, GPIO6 CS | General purpose I/O 3 RXD, MISO SPI MISO 4 TXD, MOSI SPI MOSI 5 3.3V 3.3-V supply 6 GND Ground 7 GPIO3 General purpose I/O 8 SCLK, GPIO2 SPI SCLK 9 GPIO1 General purpose I/O

10 GPIO0 General purpose I/O

Table 4. J1 Digital Signal Test Points

DACx0504EVM Hardware Setup

Testpoints SPI Signal

TP1 SCLK TP2 CS TP3 SDI TP4 SDO

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DACx0504 Evaluation Module

DACx0504EVM Software Setup

3 DACx0504EVM Software Setup

This section provides the procedure for EVM software installation.

3.1 Operating Systems for DACx0504EVM Software

The EVM software has been tested on the Microsoft®Windows®XP and Windows 7 operating systems with the United States and European regional settings. The software should also be compatible with other Windows operating systems.

3.2 DACx0504EVM Software Installation

The software is available through the EVM product folder on the TI website. Once the software is downloaded onto the PC, navigate to the DACx0504EVM folder, and run the Setup_DAC80504_EVM.exe file, as shown in Figure 3. When the software is launched, an installation dialog will open, and prompt the user to select an installation directory. If left unchanged, the software location defaults to C:\Program Files (x86)\Texas Instruments\DAC80504 EVM as shown in Figure 4.

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Figure 3. Launching Software Setup

The software installation will automatically copy the required LabVIEW files and drivers to the local machine. (Note: Please verify that the USB2ANY is not connected before the software installation, as this may affect file or driver installation.)

DACx0504 Evaluation Module

Figure 4. DACx0504EVM Install Path

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Texas Instruments DACx0504 series User Manual

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