Datasheet

www.ti.com
1 EVM Overview
1.1 Features
1.2 Introduction
2 Analog Interface
EVM Overview
• Full-featured evaluation board for the TSC2004 4-wire resistive touch screen controller (TSC)
• Modular design for use with a variety of DSP and microcontroller interface boards
The TSC2004EVM-PDK is a complete evaluation kit, which includes a USB-based motherboard and
evaluation software for use with a personal computer running Microsoft Windows™ operating systems.
The TSC2004EVM is in a Texas Instruments modular EVM form factor, which allows direct evaluation of
the TSC2004 performance and operating characteristics and eases software development and system
prototyping. This EVM is compatible with the 5-6K Interface Board (SLAU104 ) from Texas Instruments
and additional third-party boards such as the HPA449 demonstration board from SoftBaugh, Inc.
(www.softbaugh.com ) and the NI Speedy-33 from National Instruments. (www.ni.com ).
The TSC2004EVM-PDK is a complete evaluation/demonstration kit, which includes a USB-based
motherboard called the USB-MODEVM Interface Board and evaluation software for use with a personal
computer running Microsoft Windows™ operating systems.
For maximum flexibility, the TSC2004EVM is designed for easy interfacing to multiple analog sources.
Samtec part numbers SSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P provide a convenient 10-pin,
dual-row, header/socket combination at J1. This header/socket provides access to the analog input pins of
the TSC. Consult Samtec at www.samtec.com or call 1-800-SAMTEC-9 for a variety of mating connector
options.
Table 1. Analog Interface Pinout
Pin Number Signal Description
J1.2 X+ Touch screen X+ electrode
J1.4 X– Touch screen X- electrode
J1.6 Y+ Touch screen Y+ electrode
J1.8 Y– Touch screen Y- electrode
J1.10 Unused
J1.12 AUX Auxiliary input, 0 V to VREF
J1.14 Unused
J1.16 Unused
J1.18 REF(–) Tied to analog ground
J1.20 REF(+) External reference source input
J1.1 Unused
J1.3
J1.5
J1.7
J1.15
J1.9 AGND Analog ground connections
J1.11
J1.13
J1.17
J1.19
TSC2004EVM and TSC2004EVM-PDK2 SLAU215 – May 2007
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