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SX8650ICSTRT1 Datasheet(PDF) 1 Page - Semtech Corporation

Part # SX8650ICSTRT1
Description  World?셲 Lowest Power & Smallest Footprint 4-wire Resistive Touchscreen Controller with 15kV ESD
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SX8650ICSTRT1 Datasheet(HTML) 1 Page - Semtech Corporation

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SX8650
www.semtech.com
Page 1
World’s Lowest Power & Smallest Footprint 4-wire
Resistive Touchscreen Controller with 15kV ESD
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
Revision V2.19/October 2010
©2010 Semtech Corp.
4
The SX8650 is an ultra low power 4-wire resistive
touchscreen controller optimized for portable equipment
where power and board-space are at a premium.
It incorporates a highly accurate 12-bit ADC for data
conversion and operates from a single 1.65 to 3.7V supply
voltage.
The SX8650 features a built-in preprocessing algorithm for
data measurements, which greatly reduces the host
processing overhead and bus activity. This complete
touchscreen
solution
includes
four
user-selectable
operation modes which offer programmability on different
configurations such as conversion rate and settling time,
thus
enable
optimization
in
throughput
and
power
consumption for a wide range of touch sensing applications.
The touch screen inputs have been specially designed to
provide robust on-chip ESD protection of up to ±15kV in
both HBM and Contact Discharge, and eliminates the need
for external protection devices.
The SX8650 supports the Fast-mode I²C (400kbit/s) serial
bus data protocol and includes 2 user-selectable slave
addresses. A custom I2C address is possible on request.
The SX8650 is offered in two tiny packages: 3.0 mm x
3.0 mm DFN and a 1.5 mm x 2.0 mm wafer-level chip-scale
package (WLCSP).
Portable Equipment
Mobile Communication Devices
Cell phone, PDA, MP3, GPS, DSC
Touch Screen Monitors
Extremely Low Power Consumption: 23uA@1.8V 8kSPS
Superior On-chip ESD Protection
±15kV HBM (X+,X-,Y+,Y-)
±2kV CDM
±25kV Air Gap Discharge
±15kV Contact Discharge
±300V MM
Single 1.65V to 3.7V Supply/Reference
Integrated Preprocessing Block to Reduce Host Loading
and Bus Activity
Four User Programmable Operation Modes provides
Flexibility to address Different Application Needs
Manual, Automatic, Pen Detect, Pen Trigger
High Precision 12-bit Resolution
Low Noise Ratiometric Conversion
Selectable Polling or Interrupt Modes
Touch Pressure Measurement
400kHz Fast-Mode I²C Interface
Hardware Reset & I²C Software Reset
-40°C to 85°C Operation
12-LD (3.0 mm x 3.0 mm) DFN Package
12-Ball (1.5 mm x 2.0 mm) WLCSP Package
Pin-compatible with SX8651
Pb-Free, Halogen Free, RoHS/WEEE compliant product
Windows CE 6.0, Linux Driver Support Available
GENERAL DESCRIPTION
APPLICATIONS
Block Diagram
KEY PRODUCT FEATURES
ORDERING INFORMATION
Part Number
Package
SX8650ICSTRT1
1.
3000 Units / reel
12 - Ball WLCSP (1.5 mm x 2.0 mm)
SX8650IWLTRT1
12 - Lead DFN (3.0 mm x 3.0 mm)
Touch
Screen
Interface
SX8650
VDD
AUX
X+
Y+
X-
Y-
A0
NIRQ
NRST
SCL
SDA
GND
HOST
Control
I2C
Digital
Filter
ref+
ref-
ADC
in
out
OSC
POR
Vref


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