4.6 Idd Curves (Average)
Cx = 5pF, Cs = 4.7nF, Ta = 20oC, Spread spectrum circuit of Fig. 1.1.
QT1080 Idd (normal mode) mA
QT1080 Idd (110ms response) µA
5.0
500
400
300
200
100
0
4.0
Rb1=15K
Rb2=27K
Rb1=15K
Rb2=27K
3.0
2.0
Rb1=12K
Rb2=22K
1.0
Rb1=12K
Rb2=22K
0.0
2.5
3
3.5
4
4.5
5
5.5
2.5
3
3.5
4
4.5
5
5.5
Vdd(V)
Vdd(V)
QT1080 Idd (200ms response) µA
QT1080 Idd (360ms response) µA
400
300
200
100
0
300
250
200
150
100
50
Rb1=15K
Rb2=27K
Rb1=15K
Rb2=27K
Rb1=12K
Rb2=22K
Rb1=12K
Rb2=22K
0
2.5
3
3.5
4
4.5
5
5.5
2.5
3
3.5
4
4.5
5
5.5
Vdd(V)
Vdd(V)
Cx = 5pF, Cs = 4.7nF, Ta = 20oC, Rosc = 18KΩ; no spread spectrum circuit
QT1080 Idd (normal mode) mA
QT1080 Idd (110ms response) µA
5.0
400
300
200
100
0
4.0
3.0
2.0
1.0
0.0
2.5
3
3.5
4
4.5
5
5.5
2.5
3
3.5
4
4.5
5
5.5
Vdd(V)
Vdd(V)
QT1080 Idd (200ms response) µA
QT1080 Idd (360ms response) µA
250
200
150
100
50
125
100
75
50
25
0
0
2.5
3
3.5
4
4.5
5
5.5
2.5
3
3.5
4
4.5
5
5.5
Vdd(V)
Vdd(V)
lQ
11
QT1080 R11.06/0806
QUANTUM [ QUANTUM RESEARCH GROUP ]
