SX8656IWLTRT Semtech, SX8656IWLTRT Datasheet - Page 2

• Manufacturer Part Number: SX8656IWLTRT
• Description: 58T7568
• Manufacturer: Semtech

Specifications of SX8656IWLTRT

• Controller Type: Resistive Touch Screen
• Ic Interface Type: I2C, Serial
• Supply Voltage Range: 2.3V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• No. Of Pins: 20
• Resolution (bits): 12bit

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
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
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
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
5.3.4
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
Digital Processing
Host Operation
Introduction
Analog Front-End (AFE)
Digital Processing
D
PPLICATIONS
July 2011
I
ESCRIPTION
NFORMATION
SX8654
SX8655
SX8656
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
PROXAVG Update
O
F
PERATING
EATURES
S
ENSING
C
HARACTERISTICS
I
NTERFACE
..................................................................................................................... 1
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................................................................................................................... 1
.................................................................................................................. 1
I
C
NTERFACE
HARACTERISTICS
............................................................................................................ 4
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(SX8654/56) ....................................................................... 23
Table of Contents
Resistive Touchscreen Controller with Proximity Sensing
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2
SX8654/SX8655/SX8656
Haptics Enabled 4/5-Wire
www.semtech.com
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