QT115A-ISG Atmel, QT115A-ISG Datasheet - Page 65

• Manufacturer Part Number: QT115A-ISG
• Description: IC TOUCH SENSOR PROX 8SOIC
• Manufacturer: Atmel

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

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