QT115A-ISG Atmel, QT115A-ISG Datasheet - Page 65
QT115A-ISG
Manufacturer Part Number
QT115A-ISG
Description
IC TOUCH SENSOR PROX 8SOIC
Manufacturer
Atmel
Datasheet
1.AT42QT1040-MMH.pdf
(72 pages)
Specifications of QT115A-ISG
Input Type
*
Output Type
*
Interface
*
Current - Supply
*
Mounting Type
Surface Mount
Operating Supply Voltage
3 V to 5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
SO-8
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Package / Case
-
Lead Free Status / Rohs Status
Details
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6.4.3
Touch Sensors Design Guide
Two-Layer Medium/Large Slider Or Wheel
Creating larger sliders and wheels when using a flooded X design follows the same principles as in
Section 6.3.5 “Two-layer Medium/Large Slider Or Wheel” on page
introduced using resistive dividers on the X lines.
Figure 6-10. Two-layer Medium/Large Slider (Resistively Interpolated)
Figure 6-11. Two-layer Medium/Large Wheel (Resistively Interpolated)
X -1
n
Extra R
esistive Segment(s) For
For X Electrode
Extra Resistive
Rtotal typically 2 k to 10
Segment(s)
X0
W
X Electrode
kW
X 2
n-
Mutual-capacitance One-dimensional Sensors
Rtotal typically
2 k to 10
X1
W
X0
6-8, except that extra segments are
kW
For design rules, see
Figure 6-6 on page 6-8
For design rules, see
Figure 6-7 on page 6-9
10620D–AT42–04/09
6-11
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