參數(shù)資料
型號(hào)： CD74HCT7046
廠商： Texas Instruments, Inc.
英文描述： Phase-Locked Loop with VCO and Lock Detector
中文描述： 鎖相環(huán)與VCO和鎖定檢測(cè)回路
文件頁(yè)數(shù)： 16/26頁(yè)
文件大?。?/td> 302K
代理商： CD74HCT7046
16
FIGURE26. HC7046ATYPICALCHANGEINVCOFREQUENCYvs
AMBIENT TEMPERATURE AS A FUNCTION OF R1
FIGURE 27. HCT7046A TYPICAL CHANGE IN VCO
FREQUENCY vs AMBIENT TEMPERATURE AS A
FUNCTION OF R1
FIGURE28. HC7046ATYPICALCHANGEINVCOFREQUENCYvs
AMBIENT TEMPERATURE AS A FUNCTION OF R1
FIGURE 29. HC7046A OFFSET FREQUENCY vs R2, C1
FIGURE 30. HC7046A OFFSET FREQUENCY vs R2, C1
FIGURE 31. HCT7046A OFFSET FREQUENCY vs R2, C1
Typical Performance Curves
(Continued)
R1 = 3M
R1 = 300K
R1 = 3K
VCO
IN
= 0.5 V
CC
C1 = 50pF, V
CC
= 6.0V
R2 =
∞
16
12
8
4
0
V
f
-75
-50
-25
AMBIENT TEMPERATURE, T
A
(
o
C)
0
25
50
75
100
125
150
-4
-8
-12
R1 = 3M
R1 = 300K
R1 = 3K
VCO
IN
= 0.5 V
CC
C1 = 50pF, V
CC
= 5.5V
R2 =
∞
16
12
8
4
0
V
f
20
-75
-50
-25
AMBIENT TEMPERATURE, T
A
(
o
C)
0
25
50
75
100
125
150
-4
-8
-12
R1 = 2.2M
R1 = 220K
R1 = 2.2K
VCO
IN
= 0.5 V
CC
C1 = 50pF, V
CC
= 4.5V
R2 =
∞
16
12
8
4
0
V
f
20
-75
-50
-25
AMBIENT TEMPERATURE, T
A
(
o
C)
0
25
50
75
100
125
150
-4
-8
-12
R2 = 2.2K
R2 = 22K
R2 = 220K
VCO
= 0.5 V
CC
V
CC
= 4.5V
1
10
10
2
10
3
10
4
10
5
10
6
CAPACITANCE, C1 (pF)
10
8
10
7
10
6
10
5
10
4
10
3
10
2
10
1
O
R2 = 2.2M
R2 = 11M
VCO
IN
= GND
V
CC
= 3V
1
10
10
2
10
3
10
4
10
5
10
6
CAPACITANCE, C1 (pF)
10
8
10
7
10
6
10
5
10
4
10
3
10
2
10
1
O
R2 = 1.5K
R2 = 15K
R2 = 150K
R2 = 1.5M
R2 = 7.5M
VCO
IN
= GND
V
CC
= 4.5V
1
10
10
2
10
3
10
4
10
5
10
6
CAPACITANCE, C1 (pF)
10
8
10
7
10
6
10
5
10
4
10
3
10
2
10
1
O
R2 = 2.2K
R2 = 22K
R2 = 220K
R2 = 2.2M
R2 = 11M
CD74HC7046A, CD74HCT7046A
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