MAX2057 데이터 시트보기 (PDF) - Maxim Integrated
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MAX2057 Datasheet PDF : 12 Pages
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1700MHz to 2500MHz Variable-Gain
Amplifier with Analog Gain Control
Typical Operating Characteristics (continued)
One Attenuator Configuration
(Typical Application Circuit with one attenuator connected, VCC = +5.0V, R1 = 1.2kΩ, R2 = 2kΩ, fIN = 2100MHz, maximum gain
setting, POUT = +5dBm, linearity measured at POUT = +5dBm/tone, TA = +25°C, unless otherwise noted.)
60
55
50
45
40
35
30
25
20
1500
REVERSE ISOLATION
vs. RF FREQUENCY
18dB GAIN REDUCTION
MAXIMUM GAIN
1700 1900 2100 2300 2500
RF FREQUENCY (MHz)
NOISE FIGURE vs. RF FREQUENCY
8.0
7.5
TA = +85°C
7.0
6.5
6.0
5.5
TA = +25°C
5.0
4.5
TA = -40°C
4.0
1500 1700 1900 2100 2300 2500
RF FREQUENCY (MHz)
NOISE FIGURE vs. RF FREQUENCY
8.0
7.5
7.0
VCC = 4.75V
6.5
6.0
5.5
VCC = 5.00V
5.0
VCC = 5.25V
4.5
4.0
1500 1700 1900 2100 2300 2500
RF FREQUENCY (MHz)
OUTPUT IP3 vs. RF FREQUENCY
40
38
TA = -40°C
36
TA = +85°C
34
TA = +25°C
32
30
1500 1700 1900 2100 2300 2500
RF FREQUENCY (MHz)
OUTPUT IP3 vs. RF FREQUENCY
40
VCC = 5.25V
38
36 VCC = 4.75V
34
VCC = 5.00V
32
30
1500 1700 1900 2100 2300 2500
RF FREQUENCY (MHz)
41
38
35
32
29
26
23
20
0
INPUT IP3 vs. ATTENUATION
TA = +25°C
TA = +85°C
TA = -40°C
5
10
15
20
ATTENUATION (dB)
OUTPUT IP3 vs. ATTENUATION
40
TA = +25°C
38
36
34
TA = +85°C
TA = -40°C
32
OUTPUT IP3 vs. OUTPUT POWER
38
37
36
35
34
33
OUTPUT IP2 vs. RF FREQUENCY
75
70
TA = +85°C
65
60
TA = +25°C
55
TA = -40°C
50
30
0
32
5
10
15
20
-6 -3 0 3 6 9 12
ATTENUATION (dB)
OUTPUT POWER PER TONE (dBm)
45
1500 1700 1900 2100 2300 2500
RF FREQUENCY (MHz)
_______________________________________________________________________________________ 5
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