Typical operating characteristics, Two attenuator configuration – Rainbow Electronics MAX2057 User Manual
Page 7
MAX2057
1700MHz to 2500MHz Variable-Gain
Amplifier with Analog Gain Control
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7
Typical Operating Characteristics
Two Attenuator Configuration
(Typical Application Circuit with two attenuators connected, V
CC
= +5.0V, R1 = 1.2k
Ω, R2 = 2kΩ, f
IN
= 2100MHz, maximum gain
setting, P
OUT
= +5dBm, linearity measured at P
OUT
= +5dBm/tone, T
A
= +25°C, unless otherwise noted.)
INPUT RETURN LOSS
vs. RF FREQUENCY
MAX2057 toc24
RF FREQUENCY (MHz)
INPUT RETURN LOSS (dB)
2300
2100
1700
1900
35
30
25
20
15
10
5
0
40
1500
2500
T
A
= +25
°C
T
A
= -40
°C
T
A
= +85
°C
OUTPUT RETURN LOSS
vs. RF FREQUENCY
MAX2057 toc25
RF FREQUENCY (MHz)
OUTPUT RETURN LOSS (dB)
2300
2100
1700
1900
35
30
25
20
15
10
5
0
40
1500
2500
T
A
= -40
°C
T
A
= +25
°C
T
A
= +85
°C
GAIN vs. GAIN-CONTROL VOLTAGE
MAX2057 toc26
V
CNTL
(V)
GAIN (dB)
3.5
3.0
2.5
2.0
1.5
-25
-15
-5
5
15
-35
1.0
4.0
T
A
= -40
°C
T
A
= +25
°C
T
A
= +85
°C
GAIN vs. RF FREQUENCY
MAX2057 toc27
RF FREQUENCY (MHz)
GAIN (dB)
2300
2100
1900
1700
9
11
13
15
17
7
1500
2500
T
A
= -40
°C
T
A
= +25
°C
T
A
= +85
°C