QT115A-ISG Atmel, QT115A-ISG Datasheet - Page 62
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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10620D–AT42–04/09
Mutual-capacitance One-dimensional Sensors
6.3.5
6.3.5.1
6.3.5.2
6-8
Two-layer Medium/Large Slider Or Wheel
Introduction
Slider
When construcing two-layer medium/large sliders and wheels the electrodes are constructed from
slanted “segments”.
For a slider, each “segment” is 4 mm high, and the slider is constructed from as many segments as is
necessary to obtain the required height, as shown in
direction of the slant of the “segments” alternates in
Figure 6-6.
4 mm
X -1
X 1
n
n-
Two-layer Medium/Large Slider (Spatially Interpolated)
q
Max Length
= 90° to 30° Depending on Length Required
0.1–0.5 mm
Gap
4 mm
4 mm
@
(
¾¾¾¾
W x (n-1) + 4 mm
X 2
X -2
tan
n-
n
q
)
X 3
X 3
n-
n-
Y, 0.1–0.5 mm Width
Y, 0.1–0.5 mm Width
Figure 6-6
Figure 6-6 on page
to give a zigzag effect.
Height = 4 mm x Ystripes = 16 mm
6-8. Note the way in which the
Use as many segments
as necessary to achieve
desired height.
Touch Sensors Design Guide
X0
X0
4 mm
4 mm
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