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參數資料
型號: AD8345-EVAL
廠商: Analog Devices, Inc.
英文描述: 250 MHz.1000 MHz Quadrature Modulator
中文描述: 250 MHz.1000兆赫正交調制器
文件頁數: 6/16頁
文件大小: 372K
代理商: AD8345-EVAL
REV. 0
AD8345
–6–
TEMPERATURE
C
40
C
0
50
20
20
40
60
80
48
46
44
42
40
38
36
34
32
30
V
S
= 5V, DIFFERENTIAL INPUT = 1.2V p-p
V
S
= 2.7V, DIFFERENTIAL INPUT = 200mV p-p
TPC 7. Carrier Feedthrough vs. Temperature.
(F
LO
= 800 MHz, LO Level = –2 dBm)
CARRIER FEEDTHROUGH
dBm
AFTER NULLING TO
65dBm AT +25 C
86
P
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
82
78
74
70
66
62
58
54
50
T = +85
T =
40
TPC 8. Carrier Feedthrough Distribution at Temperature
Extremes. After Feedthrough Nulled to <–65 dBm at T
A
=
25
°
C. (F
LO
= 800 MHz, LO Level = –2 dBm)
LO FREQUENCY
MHz
S
30
V
S
= 5V, DIFFERENTIAL INPUT = 1.2V p-p
V
S
= 2.7V, DIFFERENTIAL INPUT = 200mV p-p
1000
32
34
36
38
40
42
44
46
48
50
950
900
850
800
750
700
650
600
550
500
450
400
350
300
250
TPC 9. Sideband Suppression vs. F
LO
. (T
A
= 25
°
C,
LO Level = –2 dBm, F
BB
= 1 MHz, I and Q Inputs
Driven in Quadrature)
BASEBAND FREQUENCY
MHz
S
26
V
S
= 5V, DIFFERENTIAL INPUT = 1.2V p-p
V
S
= 2.7V, DIFFERENTIAL INPUT = 200mV p-p
50
28
30
32
34
36
38
40
42
44
45
40
35
30
25
20
15
10
5
0
TPC 10. Sideband Suppression vs. F
BB
. (T
A
= 25
°
C,
F
LO
= 800 MHz, LO Level = –2 dBm, I and Q Inputs
Driven in Quadrature)
TEMPERATURE
C
S
35
80
37
38
39
40
41
42
43
44
45
60
40
20
0
20
40
36
V
S
= 2.7V, DIFFERENTIAL INPUT = 200mV p-p
V
S
= 5V, DIFFERENTIAL INPUT = 1.2V p-p
TPC 11. Sideband Suppression vs. Temperature.
(F
LO
= 800 MHz, LO Level = –2 dBm, F
BB
=1 MHz,
I and Q Inputs Driven in Quadrature)
BASEBAND FREQUENCY
MHz
T
V
S
= 2.7V, DIFFERENTIAL INPUT = 200mV p-p
65
0
V
S
= 5V, DIFFERENTIAL INPUT = 1.2V p-p
60
55
50
45
40
35
30
25
20
5
10
15
20
25
30
35
40
45
50
TPC 12. Third Order Distortion vs. F
BB
. (T
A
= 25
°
C,
F
LO
= 800 MHz, LO Level = –2 dBm, I and Q Inputs
Driven in Quadrature)
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