Datasheet

14
FIGURE 18. HC4046A TYPICAL VCO FREQUENCY vs VCO
IN
(R1 = 1.5MΩ, C1 = 0.1µF)
FIGURE 19. HC4046A TYPICAL VCO FREQUENCY vs VCO
IN
(R1 = 150kΩ, C1 = 0.1µF)
FIGURE 20. HC4046A TYPICAL VCO FREQUENCY vs VCO
IN
(R1 = 5.6kΩ, C1 = 0.1µF)
FIGURE 21. HC4046A TYPICAL VCO FREQUENCY vs VCO
IN
(R1 = 150kΩ, C1 = 0.1µF)
FIGURE 22. HC4046A TYPICAL VCO FREQUENCY vs VCO
IN
(R1 = 5.6kΩ, C1 = 50pF)
FIGURE 23. HC4046A TYPICAL CHANGE IN VCO FREQUENCY
vs AMBIENT TEMPERATURE AS A FUNCTION OF
R1 (V
CC
= 3V)
Typical Performance Curves (Continued)
90
70
60
50
40
30
20
10
01 2 3 4 5 6
VCO
IN
(V)
VCO FREQUENCY (Hz)
C1 = 0.1µF
R1 = 1.5M
V
CC
= 3V
V
CC
= 4.5V
V
CC
= 6V
80
800
600
500
400
300
200
100
01 2 3 4 5 6
VCO
IN
(V)
VCO FREQUENCY (Hz)
C1 = 0.1µF
R1 = 150K
V
CC
= 3V
V
CC
= 4.5V
V
CC
= 6V
700
18
14
12
10
8
6
4
2
01 2 3 4 5 6
VCO
IN
(V)
VCO FREQUENCY (kHz)
C1 = 0.1µF
R1 = 5.6k
V
CC
= 3V
V
CC
= 4.5V
V
CC
= 6V
16
1400
1000
800
600
400
200
01 2 3 4 5 6
VCO
IN
(V)
VCO FREQUENCY (kHz)
C1 = 50pF
R1 = 150K
V
CC
= 3V
V
CC
= 4.5V
V
CC
= 6V
1200
20
16
12
8
4
01 2 3 4 5 6
VCO
IN
(V)
VCO FREQUENCY (MHz)
C1 = 50pF
R1 = 5.6K
V
CC
= 3V
V
CC
= 4.5V
V
CC
= 6V
24
R1 = 1.5M
R1 = 150K
R1 = 3K
R1 = 1.5K
VCO
IN
= 0.5 V
CC
C1 = 50pF, V
CC
= 3V
R2 = OPEN
24
16
12
8
4
0
-4
VCO FREQUENCY CHANGE, ∆f (%)
20
-75 -50 -25 0 25 50 75
AMBIENT TEMPERATURE, T
A
(
o
C)
100 125 150
-8
-12
-16
CD74HC4046A, CD74HCT4046A