ATQT600 Atmel, ATQT600 Datasheet - Page 65

• Manufacturer Part Number: ATQT600
• Description: KIT EVAL TOUCH FOR QT600
• Manufacturer: Atmel
• Series: QTouch™r

Specifications of ATQT600

• Sensor Type: Touch Screen
• Interface: USB
• Embedded: Yes, Other
• Utilized Ic / Part: ATtiny88, ATmega324PA, ATxmega128A1
• Processor To Be Evaluated: ATtiny88, ATmega324, ATxmega128
• Data Bus Width: 8 bit, 16 bit
• Interface Type: USB
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 1.6 V to 3.6 V
• Silicon Manufacturer: Atmel
• Kit Application Type: Sensor
• Application Sub Type: Touch Sensor
• Kit Contents: USB Bridge, MCU Cards, Touchpad Cards
• Svhc: No SVHC (15-Dec-2010)
• Mcu Supported Families: ATtiny88,
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Sensitivity: -
• Sensing Range: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

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