QT60248C-ASG Atmel, QT60248C-ASG Datasheet - Page 53

• Manufacturer Part Number: QT60248C-ASG
• Description: IC TOUCH SENSOR 24KEY 32TQFP
• Manufacturer: Atmel
• Series: QMatrix™, QProx™r
• Type: Capacitiver

Specifications of QT60248C-ASG

• Number Of Inputs/keys: 24 Key
• Resolution (bits): 9, 11 b
• Data Interface: Serial, SPI™
• Voltage - Supply: 3 V ~ 5 V
• Current - Supply: 25mA
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFP, 32-VQFP
• Output Type: *
• Interface: *
• Input Type: *
• For Use With: 427-1087 - BOARD EVAL QT60248-AS QMATRIX
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Touch Sensors Design Guide
Figure 5-7.
Rtotal
typically
100 kW
Medium/Large Wheel (Resistively Interpolated)
Channel 2
Channel 0
5–9 mm
120°
Parallel Gap
0.1–0.5 mm
Self-capacitance One-dimensional Sensors
Fill with segments
on equal spacing,
adjusting width to suit
Channel 1
Outer Arc
6 8 mm
–
10620D–AT42–04/09
5-7