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UR7HCTS2-USB Datasheet

  • UR7HCTS2-USB

  • Ultimate USB ScreenCoder - 4/5/8-Wire USB Touch Screen Encod...

  • 197.23KB

  • 12頁

  • ETC

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UR7HCTS2-USB
Ultimate USB ScreenCoder廬
4/5/8-Wire USB Touch Screen Encoder
HID & SYSTEM MANAGEMENT PRODUCTS, SCREENCODER廬 FAMILY
DESCRIPTION
The UR7HCTS2-USB Ultimate USB
ScreenCoder廬 is the first single IC
that seamlessly interfaces ANY 4-
wire, 5-wire, or 8-wire resistive
touch screen to a USB-equipped
system. It is also the first touch
screen controller IC on the market
designed to accommodate a very
wide range of size, capacitance
and resistance of touch screens,
providing a universal performance
solution among different OEM
products and touch screen
vendors. This unique feature of
the IC provides OEMs with a wide
variety of interchangeable touch
screen options.
Unlike implementations with
separate digitizers, the
UR7HCTS2-USB integrates a
digitizer with a controller that
performs all touch detection, noise
filtering, error elimination and
provides the host with processed
and stable positioning data over
USB. Semtech鈥檚 unique motion
algorithms provide high resistance
to RF and other noise sources
resulting in precise, jitter-free
cursor control.
Ideal applications for the
UR7HCTS2-USB include portable
devices, interactive kiosks and
industrial / custom displays with
integrated touch screens.
The universal features of the
UR7HCTS2-USB, as implemented
in both the system and the sensor
interface, reduce the development
effort and cost of touch input
based systems. The UR7HCTS2-
USB is available in a 36-pin SSOP
package.
FEATURES
鈥?Controller & digitizer in a single IC
鈥?Interfaces the system via USB
鈥?Works with ANY 4-, 5-, or 8-wire
resistive touch screen regardless
of size, material or vendor
鈥?Provides high resolution: 1000
points per axis, enabling IC to
make precise drawing and
signature captures
鈥?Accurate, quick touch response
due to Semtech鈥檚 advanced
sampling technology and
algorithms
APPLICATIONS
鈥?Handheld PCs (H/PCs)
鈥?Notebook PCs
鈥?Portable devices
PIN ASSIGNMENTS
1
N/C
N/C
N/C
SXL/NW_AD
SYT/NE_AD
SYB/SW_AD
SXR/SE_AD
SENSE_DRV
SENSE_AD
N/C
N/C
VREF
_RESET
VSS2
VDD
OSCIN
_OSCOUT
VSS
18
36
D+
D-
_RB
_TOUCH
XR2/SE2
YB2/SW2
YT2/NE2
XL2/NW2
N/C
N/C
USBV
N/C
N/C
_WR5/WR4-8
XL1/NW1
YT1/NE1
YB1/SW1
XR1/SE1
PRELIMINARY
鈥?Highly resistant to RF and other
noise
鈥?No digitizer or external A/D
necessary
鈥?Fully compliant with USB HID
absolute-mode pointing device
specifications
鈥?Free driver with calibration applet
available for Windows廬 98 SE,
Windows廬 Me, Windows廬 2000,
and Windows廬 XP
鈥?Uses 36-pin SSOP package
鈥?Interactive kiosks
鈥?Industrial/custom touch screens
36-pin SSOP
19
Semtech and ScreenCoder are registered
trademarks of Semtech Corporation. All other
trademarks belong to their respective owners.
Copyright 漏2000-2002 Semtech Corporation
UR7HCTS2-USB data sheet v1.06 2002-12
1
www.semtech.com

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