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User's Guide
SBAU122 – March 2006
ADS7845EVM and ADS7845EVM-PDK
This user's guide describes the characteristics, operation, and use of the
ADS7845EVM, both by itself and as part of the ADS7845EVM-PDK. This device is a
5-wire touch screen controller evaluation module (EVM) which also has an auxiliary
input measurement capability. A complete circuit description, schematic diagram, and
bill of materials are included.
The following related documents are available through the Texas Instruments web site
at www.ti.com .
EVM-Compatible Device Data Sheets
Literature
Device Number
ADS7845 SBAS104
REF3125 SBVS046
TAS1020B SLES025
REG1117-5 SBVS001
TPS767D318 SLVS209
SN74LVC125A SCAS290
SN74LVC1G125 SCES223
SN74LVC1G07 SCES296
Contents
1 EVM Overview ............................................................................................................... 2
2 Analog Interface .............................................................................................................. 2
3 Digital Interface .............................................................................................................. 3
4 Power Supplies .............................................................................................................. 3
5 EVM Operation ............................................................................................................... 5
6 Kit Operation ................................................................................................................. 5
7 EVM Bill of Materials and Schematic .................................................................................... 10
List of Figures
1 ADS7845EVM-PDK Block Diagram ...................................................................................... 6
2 Default Software Screen ................................................................................................... 8
List of Tables
1 Analog Interface Pinout ..................................................................................................... 2
2 Digital Interface Pinout ...................................................................................................... 3
3 Power Supply Pinout ........................................................................................................ 3
4 List of Jumpers ............................................................................................................... 5
5 ADS7845EVM Bill of Materials ........................................................................................... 10
6 USB-MODEVM Bill of Materials .......................................................................................... 11
SBAU122 – March 2006 ADS7845EVM and ADS7845EVM-PDK 1
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