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Data collecting ICs
Data acquisition IC - Touchscreen controller 12 Bit 1x TSC input DSBGA 28
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Table Of Contents
FEATURES
APPLICATIONS
DESCRIPTION
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
PIN CONFIGURATION
TIMING INFORMATION
TIMING REQUIREMENTS
TYPICAL CHARACTERISTICS
OVERVIEW
TOUCH SCREEN OPERATION
4-WIRE TOUCH SCREEN COORDINATE PAIR MEASUREMENT
INTERNAL TEMPERATURE SENSOR
ANALOG-TO-DIGITAL CONVERTER
Data Format
Reference
Variable Resolution
Conversion Clock and Conversion Time
Touch Detect
Preprocessing
Zone Detection
DIGITAL INTERFACE
CONTROL BYTE
Touch Screen Scan Function for XYZ or XY
Touch Screen Sensor Connection Tests for X-Axis and Y-Axis
Touch Sensor Short-Circuit Test
START A CONVERTER FUNCTION (CONTROL BYTE 1)
REGISTER ACCESS (Control Byte 0 with R/W Bit)
COMMUNICATION PROTOCOL
Configuration Register 0
Configuration Register 1
Configuration Register 2
Converter Function Select Register
DATA REGISTERS
X, Y, Z1, Z2, AUX, TEMP1 and TEMP2 REGISTERS
Register Map
REGISTER RESET
THEORY OF OPERATION
TOUCH SCREEN MEASUREMENTS
Conversion Controlled by TSC2005 Initiated by TSC2005 (TSMode 1)
Conversion Controlled by TSC2005 Initiated by Host (TSMode 2)
Conversion Controlled by Host (TSMode 3)
AUXILIARY AND TEMPERATURE MEASUREMENT
LAYOUT
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
TSC2005IYZLR
DSBGA
YZL
28
3000
210.0
185.0
35.0
TSC2005IYZLT
DSBGA
YZL
28
250
210.0
185.0
35.0
PACKAGE MATERIALS INFORMATION
www.ti.com
22-Sep-2011
Pack Materials-Page 2
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