sx8675iwltrt Semtech Corporation, sx8675iwltrt Datasheet - Page 2

• Manufacturer Part Number: sx8675iwltrt
• Description: Haptics Enabled Multitouch 4/5-wire Resistive Touchscreen Controller With Proximity Sensing
• Manufacturer: Semtech Corporation

ADVANCED COMMUNICATIONS & SENSING
G
T
O
K
1
2
3
4
5
Rev 1 – 25
YPICAL
EY
ENERAL
RDERING
1.1
1.2
1.3
1.4
2.1
2.2
2.3
4.1
4.2
4.3
4.4
4.5
4.6
4.7
5.1
5.2
5.3
P
G
1.1.1
1.1.2
1.1.3
1.2.1
1.2.2
E
T
T
4.2.1
4.2.2
4.3.1
4.7.1
4.7.2
4.7.3
4.7.4
4.7.5
P
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.3.1
5.3.2
5.3.3
RODUCT
YPICAL
OUCHSCREEN
LECTRICAL
ROXIMITY
ENERAL DESCRIPTION
A
th
Marking Information
Pin Diagrams
Pin Description
Block Diagram
Absolute Maximum Ratings
Thermal Characteristics
Electrical Specifications
Introduction
Coordinates Measurement
Pressure Measurement (4-wire only)
Pen Detection
Multitouch Measurement (4-wire only)
Digital Processing
Host Operation
Introduction
Analog Front-End (AFE)
Digital Processing
D
PPLICATIONS
July 2011
I
ESCRIPTION
NFORMATION
SX8674
SX8675
SX8676
QFN Package
CSP Package
4-wire Touchscreen
5-wire Touchscreen
Bias Time (POWDLY)
Overview
Manual Mode (MAN)
Pen Detect Mode (PENDET)
Pen Trigger Mode (PENTRG)
Maximum Throughput vs. TOUCHRATE setting
Capacitive Sensing Basics
AFE Block Diagram
Capacitance-to-Voltage Conversion (C-to-V)
Shield Control
Offset Compensation
Analog-to-Digital Conversion (ADC)
Overview
PROXRAW Update
PROXUSEFUL Update
O
F
PERATING
EATURES
S
ENSING
C
HARACTERISTICS
I
NTERFACE
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.................................................................................................................. 1
I
C
NTERFACE
HARACTERISTICS
............................................................................................................ 4
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(SX8674/76) ....................................................................... 24
Table of Contents
Resistive Touchscreen Controller with Proximity Sensing
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2
SX8674/SX8675/SX8676
Haptics Enabled Multitouch 4/5-Wire
www.semtech.com
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