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Contents

1

EVM Overview

............................................................................................................... 3

2

Analog Interface

.............................................................................................................. 4

3

Digital Interface

.............................................................................................................. 4

4

Power Supplies

.............................................................................................................. 5

5

Voltage Reference

........................................................................................................... 6

6

Clock Source

................................................................................................................. 7

7

EVM Operation

............................................................................................................... 7

8

ADS1246EVM-PDK Kit Operation

......................................................................................... 8

9

Evaluating Performance with the ADCPro Software

................................................................... 16

10

Schematics and Layout

.................................................................................................... 23

List of Figures

1

Reference Select Switch S1

................................................................................................ 6

2

Jumper J2

..................................................................................................................... 7

3

ADS1246EVM Default Jumper Locations

................................................................................ 8

4

Virtual COM Port Installer

................................................................................................... 9

5

Virtual COM Port Setup

..................................................................................................... 9

6

MMB3 Switch Locations

.................................................................................................. 10

7

Connecting ADS1246EVM to MMB3

................................................................................... 10

8

MMB3 Block Diagram

...................................................................................................... 11

9

ADCPro Software Start-Up Display Window

............................................................................ 12

10

ADS1246EVM-PDK Plug-In Display Window

........................................................................... 13

11

Connection Timeout

....................................................................................................... 14

12

Firmware Download Message Box

...................................................................................... 14

13

Firmware Download Progress Indicator

................................................................................. 15

14

Firmware Download Complete Message Box

.......................................................................... 15

15

I/O Config Tab

............................................................................................................. 17

16

Enabling VBIAS on a Channel

........................................................................................... 18

17

Cal Tab

..................................................................................................................... 20

18

About Tab

................................................................................................................... 21

19

Progress Bar While Collecting Data

..................................................................................... 22

List of Tables

1

J8/J4: Analog Interface Pinout

............................................................................................. 4

2

J7: Serial Interface Pins

..................................................................................................... 4

3

J3 Configuration: Power-Supply Input

.................................................................................... 5

4

J10 Configuration: Power Options

......................................................................................... 6

5

Reference Voltage Options

................................................................................................. 6

6

List of Switches

.............................................................................................................. 8

7

ADS1146EVM/ADS1246EVM Bill of Materials

......................................................................... 23

ADCPro is a trademark of Texas Instruments.

Microsoft, Windows are registered trademarks of Microsoft Corporation.

All other trademarks are the property of their respective owners.

ADS1146EVM, ADS1246EVM, ADS1146EVM-PDK, ADS1246EVM-PDK

2

SBAU149A – June 2009 – Revised July 2009

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