Rainbow-electronics MAX2057 Manual do Utilizador Página 5

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MAX2057
1700MHz to 2500MHz Variable-Gain
Amplifier with Analog Gain Control
_______________________________________________________________________________________ 5
OUTPUT IP3 vs. RF FREQUENCY
MAX2057 toc13
RF FREQUENCY (MHz)
OUTPUT IP3 (dBm)
2300210019001700
32
34
36
38
40
30
1500 2500
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
OUTPUT IP3 vs. RF FREQUENCY
MAX2057 toc14
RF FREQUENCY (MHz)
OUTPUT IP3 (dBm)
2300210019001700
32
34
36
38
40
30
1500 2500
V
CC
= 4.75V
V
CC
= 5.25V
V
CC
= 5.00V
INPUT IP3 vs. ATTENUATION
MAX2057 toc15
ATTENUATION (dB)
INPUT IP3 (dBm)
15105
23
26
29
32
35
38
41
20
020
T
A
= +25°C
T
A
= +85°C
T
A
= -40°C
30
32
36
34
38
40
OUTPUT IP3 vs. ATTENUATION
MAX2057 toc16
ATTENUATION (dB)
OUTPUT IP3 (dBm)
01051520
T
A
= +25°C
T
A
= -40°C
T
A
= +85°C
32
34
33
36
35
37
38
-6 0 3-3 6 9 12
OUTPUT IP3 vs. OUTPUT POWER
MAX2057 toc17
OUTPUT POWER PER TONE (dBm)
OUTPUT IP3 (dBm)
OUTPUT IP2 vs. RF FREQUENCY
MAX2057 toc18
RF FREQUENCY (MHz)
OUTPUT IP2 (dBm)
2300210019001700
50
55
60
65
70
75
45
1500 2500
T
A
= +25°C
T
A
= -40°C
T
A
= +85°C
REVERSE ISOLATION
vs. RF FREQUENCY
MAX2057 toc10
RF FREQUENCY (MHz)
REVERSE ISOLATION (dB)
230021001700 1900
25
30
35
40
45
50
55
60
20
1500 2500
MAXIMUM GAIN
18dB GAIN REDUCTION
NOISE FIGURE vs. RF FREQUENCY
MAX2057 toc11
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
230021001700 1900
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
4.0
1500 2500
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
NOISE FIGURE vs. RF FREQUENCY
MAX2057 toc12
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
230021001700 1900
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
4.0
1500 2500
V
CC
= 4.75V
V
CC
= 5.25V
V
CC
= 5.00V
Typical Operating Characteristics (continued)
One Attenuator Configuration
(Typical Application Circuit with one attenuator connected, V
CC
= +5.0V, R1 = 1.2k, R2 = 2k, f
IN
= 2100MHz, maximum gain
setting, P
OUT
= +5dBm, linearity measured at P
OUT
= +5dBm/tone, T
A
= +25°C, unless otherwise noted.)
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