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參數(shù)資料
| 型號： | AD8320 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Serial Digital Controlled Variable Gain Amplifier(串行數(shù)字驅(qū)動可變增益放大器) |
| 中文描述： | 串行數(shù)字控制可變增益放大器（串行數(shù)字驅(qū)動可變增益放大器） |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 513K |
| 代理商： | AD8320 |
AD8320
–6–
REV. 0
GAIN CONTROL – Decimal
D
0
64
128
192
256
F = 65MHz, P
O
= 18dBm
F = 42MHz, P
O
= 18dBm
F = 65MHz, P
O
= 12dBm
F = 42MHz, P
O
= 12dBm
2
30
2
40
2
50
2
60
2
70
2
80
2
90
V
CC
= 12V
Figure 13. Worst Harmonic Distor-
tion vs. Gain Control
FREQUENCY – MHz
D
2
20
2
30
1
10
100
2
50
2
60
2
70
2
40
2
80
P
O
= 4dBm
P
O
= 8dBm
P
O
= 12dBm
P
O
= 18dBm
Figure 16. Worst Harmonic Distor-
tion vs. Frequency for Various Output
Levels at V
CC
= 10 V
HARMONIC DISTORTION
2
dBc
P
0
2
45
10
30
V
CC
= 12V
P
= 18dBm
F = 65MHz
N = 30
40
2
44
2
43
2
42
2
41
20
Figure 19. Distribution of Worst Har-
monic Distortion
FREQUENCY – MHz
1
10
100
P
O
= 4dBm
D
P
O
= 10dBm
P
O
= 8dBm
P
O
= 12dBm
2
20
2
30
2
40
2
50
2
60
2
70
2
80
Figure 15. Worst Harmonic Distor-
tion vs. Frequency for Various Output
Levels at V
CC
= 6 V
HARMONIC DISTORTION – dBc
P
0
2
47
30
10
20
V
CC
= 12V
P
= 18dBm
F = 42MHz
N = 30
40
46
45
44
2
43
Figure 18. Distribution of Worst Har-
monic Distortion
HARMONIC DISTORTION
2
dBc
P
0
2
44
22.5
7.5
15.0
V
CC
= 5V
P
= 12dBm
F = 65MHz
N = 30
30.0
2
43
2
42
2
41
2
40
Figure 21. Distribution of Worst Har-
monic Distortion
FREQUENCY – MHz
1
10
100
P
O
= 4dBm
D
P
O
= 10dBm
P
O
= 8dBm
P
O
= 12dBm
2
20
2
30
2
40
2
50
2
60
2
70
2
80
Figure 14. Worst Harmonic Distor-
tion vs. Frequency for Various Output
Levels at V
CC
= 5 V
FREQUENCY – MHz
1
10
100
P
O
= 4dBm
2
20
2
30
2
40
2
50
2
60
2
70
2
80
D
P
O
= 12dBm
P
O
= 8dBm
P
O
= 18dBm
Figure 17. Worst Harmonic Distor-
tion vs. Frequency for Various Output
Levels at V
CC
= 12 V
HARMONIC DISTORTION
2
dBc
P
0
2
59
15
V
CC
= 12V
P
= 12dBm
F = 42MHz
N = 30
20
2
58
2
57
2
56
2
55
10
5
Figure 20. Distribution of Worst Har-
monic Distortion
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