14
FIGURE 17. HC4046A TYPICAL VCO FREQUENCY vs VCOIN
(R1 = 1.5M
, C1 = 0.1F)
FIGURE 18. HC4046A TYPICAL VCO FREQUENCY vs VCOIN
(R1 = 150k
, C1 = 0.1F)
FIGURE 19. HC4046A TYPICAL VCO FREQUENCY vs VCOIN
(R1 = 5.6k
, C1 = 0.1F)
FIGURE 20. HC4046A TYPICAL VCO FREQUENCY vs VCOIN
(R1 = 150k
, C1 = 50pF)
FIGURE 21. HC4046A TYPICAL VCO FREQUENCY vs VCOIN
(R1 = 5.6k
, C1 = 50pF)
FIGURE 22. HC4046A TYPICAL CHANGE IN VCO FREQUENCY
vs AMBIENT TEMPERATURE AS A FUNCTION OF
R1 (VCC = 3V)
Typical Performance Curves (Continued)
90
70
60
50
40
30
20
10
01
2
3
4
5
6
VCOIN (V)
VCO
FREQ
UENCY
(Hz)
C1 = 0.1
F
R1 = 1.5M
VCC = 3V
VCC = 4.5V
VCC = 6V
80
800
600
500
400
300
200
100
01
2
3
4
5
6
VCOIN (V)
VCO
FREQ
UENCY
(Hz)
C1 = 0.1
F
R1 = 150K
VCC = 3V
VCC = 4.5V
VCC = 6V
700
18
14
12
10
8
6
4
2
01
2
3
4
5
6
VCOIN (V)
VCO
FREQ
UENCY
(kHz)
C1 = 0.1
F
R1 = 5.6k
VCC = 3V
VCC = 4.5V
VCC = 6V
16
1400
1000
800
600
400
200
01
2
3
4
5
6
VCOIN (V)
VCO
FREQ
UENCY
(kHz)
C1 = 50pF
R1 = 150K
VCC = 3V
VCC = 4.5V
VCC = 6V
1200
20
16
12
8
4
01
2
3
4
5
6
VCOIN (V)
VCO
FREQ
UENCY
(MHz)
C1 = 50pF
R1 = 5.6K
VCC = 3V
VCC = 4.5V
VCC = 6V
24
R1 = 1.5M
R1 = 150K
R1 = 3K
R1 = 1.5K
VCOIN = 0.5 VCC
C1 = 50pF, VCC = 3V
R2 = OPEN
24
16
12
8
4
0
-4
VCO
FREQ
UENCY
CHANGE,
f(%)
20
-75
-50
-25
0
25
50
75
AMBIENT TEMPERATURE, TA (
oC)
100
125
150
-8
-12
-16
CD54HC4046A, CD74HC4046A, CD54HCT4046A, CD74HCT4046A