QT1103-ISG Atmel, QT1103-ISG Datasheet - Page 15

• Manufacturer Part Number: QT1103-ISG
• Description: IC SENSOR QTOUCH 10CH 32QFN
• Manufacturer: Atmel
• Series: QTouch™r
• Type: Capacitiver

Specifications of QT1103-ISG

• Touch Panel Interface: 1, 2-Wire
• Number Of Inputs/keys: 10 Key
• Resolution (bits): 8 b
• Data Interface: Serial
• Data Rate/sampling Rate (sps, Bps): 38.4k
• Voltage Reference: *
• Voltage - Supply: 2.8 V ~ 5 V
• Current - Supply: 8mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-QFN
• Output Type: Logic
• Interface: RS-232
• Input Type: Logic
• For Use With: 427-1134 - EVAL BOARD FOR QT1103
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 427-1129-2

4.6 Idd Curves
All Idd curves are average values, under the following conditions: Cx = 5pF, Cs = 4.7nF, Ta = 20
circuit. Refer to page 9 for more information about optimization of LP modes.
Full speed operation
lQ
Low Power operation (optimized - only burst B in use)
500.0
400.0
300.0
200.0
100.0
1500.0
1250.0
1000.0
5.0
4.0
3.0
2.0
1.0
0.0
750.0
500.0
250.0
0.0
QT1103, average Idd (70ms optimized LP operation)
0.0
0
0
0
QT1103, average Idd (full speed operation)
QT1103, average Idd (190ms optimized LP
1
1
1
burst length (ms)
burst length (ms)
burst length (ms)
2
2
2
3
3
operation)
3
4
4
4
5
5
5
6
6
6
Vdd=5V
Vdd=4V
Vdd=3.3V
Vdd=2.8V
Vdd=5V
Vdd=4V
Vdd=3.3V
Vdd=2.8V
Vdd=5V
Vdd=4V
Vdd=3.3V
Vdd=2.8V
15
1000.0
800.0
600.0
400.0
200.0
0.0
0
QT1103, average Idd (110ms optimized LP
1
burst length (ms)
2
operation)
3
4
o
C; no spread-spectrum
QT1103_3R0.03_0607
5
6
Vdd=5V
Vdd=4V
Vdd=3.3V
Vdd=2.8V