CD54HC4046A, CD74HC4046A, CD54HCT4046A, CD74HCT4046A
Typical Performance Curves (Continued)
8
7
8
7
10
10
R1 = 2.2K
R1 = 22K
R1 = 220K
R1 = 2.2M
R1 = 11M
R1 =3K
R1 = 30K
R1 =330K
R1 = 3M
R1 = 15M
10
10
6
5
6
5
10
10
10
10
4
3
2
4
3
2
10
10
10
10
10
10
VCO = 0.5 V
IN
CC
VCO = 0.5 V
IN CC
10
1
10
1
V
= 6.0V
CC
V
= 4.5V
CC
2
3
4
5
6
2
3
4
5
6
1
10
1
10
10
10
10
10
10
10
10
10
10
10
CAPACITANCE, C1 (pF)
CAPACITANCE, C1 (pF)
FIGURE 11. HC4046A TYPICAL CENTER FREQUENCY vs R1,
C1 (V = 4.5V)
FIGURE 12. HC4046A TYPICAL CENTER FREQUENCY vs R1,
C1 (V = 6V)
CC
CC
8
7
8
10
10
R1 = 2.2K
R1 = 22K
R1 = 220K
R1 = 2.2M
R1 = 11M
R1 = 1.5K
R1 = 15K
R1 = 150K
R1 = 1.5M
R1 = 7.5M
10
7
6
5
4
3
2
10
10
10
10
10
10
6
5
10
10
4
3
2
10
10
10
VCO = 0.5 V
IN CC
VCO = 0.5 V
IN
V
= 3.0V
CC
10
1
CC
10
1
V
= 4.5V
R2 = OPEN
CC
2
3
4
5
6
2
3
4
5
6
1
10
1
10
10
10
10
10
10
10
10
10
10
10
CAPACITANCE, C1 (pF)
CAPACITANCE, C1 (pF)
FIGURE 13. HC4046A TYPICAL CENTER FREQUENCY vs R1,
C1 (V = 3V, R2 = OPEN)
FIGURE 14. HCT4046A TYPICAL CENTER FREQUENCY vs R1,
C1 (V = 4.5V)
CC
CC
8
140
120
100
10
R1 = 3K
C1 = 50pF
R1 = 1.5M
V
= 6V
CC
R1 = 30K
R1 = 300K
R1 = 3M
R1 = 15M
7
6
5
4
3
2
10
10
10
10
10
10
V
= 4.5V
CC
80
60
40
V
= 3V
CC
VCO = 0.5 V
IN CC
10
1
V
= 5.5V
CC
20
2
3
4
5
6
0
1
2
3
4
5
6
1
10
10
10
10
10
10
VCO (V)
IN
CAPACITANCE, C1 (pF)
FIGURE 16. HC4046A TYPICAL VCO FREQUENCY vs VCO
FIGURE 15. HCT4046A TYPICAL CENTER FREQUENCY vs R1,
C1 (V = 5.5V)
IN
(R1 = 1.5MΩ, C1 = 50pF)
CC
13
TI [ TEXAS INSTRUMENTS ]
