Datasheet

EVM Overview

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1 EVM Overview

1.1 Features

• Full-featured evaluation board for the TSC2008 4-wire resistive touch screen controller (TSC).

• Modular design for use with a variety of DSP and microcontroller interface boards.

The TSC2008EVM-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.

1.2 Introduction

The TSC2008EVM is in the Texas Instruments modular EVM form factor, which allows direct evaluation of

the performance and operating characteristics of the TSC2008 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 NI Speedy-33™ from National Instruments

Corporation. (www.ni.com)

The TSC2008EVM-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.

2 Analog Interface

For maximum flexibility, the TSC2008EVM 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 2. 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 Unused

J1.20 Unused

J1.15 Unused

J1.1-J1.J19 (odd) AGND Analog ground connections (except J1.15)

3 Digital Interface

The TSC2008EVM is designed to easily interface with multiple control platforms. 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 J2. This header/socket provides access to the digital control and serial data pins of the

TSC. Consult Samtec at www.samtec.com or call 1-800-SAMTEC-9 for a variety of mating connector

options.

TSC2008EVM and TSC2008EVM-PDK User's Guide SLAU248–May 2008

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