qt102 Quantum Research Group, qt102 Datasheet - Page 10

• Manufacturer Part Number: qt102
• Description: Qtouch? Toggle-mode Charge-transfer Ic Touch Screen With Power Management Functions
• Manufacturer: Quantum Research Group

lQ
4000
3500
3000
2500
2000
1500
1000
4000
3500
3000
2500
2000
1500
1000
53
51
49
47
45
43
41
39
37
35
33
31
29
500
500
2
0
0
10
10
Figure 3.10 Active High Output
30
30
2.5
50
50
QT102 Active High output, VDD = 5V
QT102 Active High output, VDD = 3V
QT102 Active High output
Tim ing Resistor Rt (K ohm s)
Tim ing Resistor Rt (K ohm s)
70
70
3
90
90
VDD (volts)
Ct=100nF
110
110
3.5
Figure 3.12 Auto-off Delay, Active High Output,
130
130
Ct=100nF
4
150
150
Vm = Vss (delay multiplier = x1)
Ct=47nF
170
170
Ct=22nF
Ct=22nF
Ct=10nF
Ct=47nF
Ct=10nF
4.5
190
190
210
210
5
10
4000
3500
3000
2500
2000
1500
1000
4000
3500
3000
2500
2000
1500
1000
20
19
18
17
16
15
14
13
12
500
500
2
0
0
10
10
Figure 3.11 Active Low Output
30
30
2.5
QT102 Active High output, VDD = 4V
50
QT102 Active High output, VDD = 2V
50
QT102 Active Low output
Tim ing Resistor Rt (K ohm s)
Tim ing Resistor Rt (K ohm s)
70
Ct=100nF
70
3
90
90
VDD (volts)
3.5
Ct=100nF
110
110
QT102_2R3.05_1007
130
130
Ct=47nF
4
150
150
170
170
Ct=47nF
Ct=22nF
Ct=10nF
Ct=22nF
Ct=10nF
4.5
190
190
210
210
5