Typical operating characteristics, One attenuator configuration – Rainbow Electronics MAX2056 User Manual
Page 4
MAX2056
800MHz to 1000MHz Variable-Gain
Amplifier with Analog Gain Control
4
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Typical Operating Characteristics
One Attenuator Configuration
(Typical Application Circuit with one attenuator connected, V
CC
= +5.0V, R1 = 1.2k
Ω, R2 = 3.92kΩ, f
IN
= 900MHz maximum gain
setting, P
OUT
= +5dBm, linearity measured at P
OUT
= +5dBm/tone, T
A
= +25°C, unless otherwise noted.)
100
120
110
140
130
150
160
4.750
5.000
4.875
5.125
5.250
SUPPLY CURRENT vs. V
CC
MAX2056 toc01
V
CC
(V)
SUPPLY CURRENT (mA)
T
A
= +85
°C T
A
= +25
°C
T
A
= -40
°C
30
25
20
15
10
5
0
700
900
800
1000 1100 1200 1300 1400 1500
INPUT RETURN LOSS
vs. RF FREQUENCY
MAX2056 toc02
RF FREQUENCY (MHz)
INPUT RETURN LOSS (dB)
T
A
= +85
°C
T
A
= +25
°C
T
A
= -40
°C
MAX2056 toc03
T
A
= +85
°C
T
A
= +25
°C
T
A
= -40
°C
30
25
20
15
10
5
0
700
900
800
1000 1100 1200 1300 1400 1500
OUTPUT RETURN LOSS
vs. RF FREQUENCY
RF FREQUENCY (MHz)
OUTPUT RETURN LOSS (dB)
GAIN vs. V
CNTL
MAX2056 toc04
V
CNTL
(V)
GAIN (dB)
3.5
3.0
2.5
2.0
1.5
-5
0
5
10
15
20
-10
1.0
4.0
T
A
= +85
°C
T
A
= +25
°C
T
A
= -40
°C
11
12
13
14
15
16
17
GAIN vs. RF FREQUENCY
MAX2056 toc05
GAIN (dB)
T
A
= +85
°C
T
A
= +25
°C
T
A
= -40
°C
700
900
800
1000 1100 1200 1300 1400 1500
RF FREQUENCY (MHz)
20
25
30
35
REVERSE ISOLATION
vs. RF FREQUENCY
MAX2056 toc06
ISOLATION (dB)
T
A
= +85
°C
T
A
= +25
°C
T
A
= -40
°C
700
900
800
1000 1100 1200 1300 1400 1500
RF FREQUENCY (MHz)
30
25
20
15
10
5
0
INPUT RETURN LOSS
vs. RF FREQUENCY
MAX2056 toc07
INPUT RETURN LOSS (dB)
700
900
800
1000 1100 1200 1300 1400 1500
RF FREQUENCY (MHz)
MAXIMUM GAIN
21dB GAIN REDUCTION
MAX2056 toc08
30
25
20
15
10
5
0
OUTPUT RETURN LOSS
vs. RF FREQUENCY
OUTPUT RETURN LOSS (dB)
700
900
800
1000 1100 1200 1300 1400 1500
RF FREQUENCY (MHz)
MAXIMUM GAIN
21dB GAIN REDUCTION
-17
-7
-12
3
-2
8
13
18
23
MAX2056 toc09
GAIN (dB)
GAIN vs. RF FREQUENCY
700
900
800
1000 1100 1200 1300 1400 1500
RF FREQUENCY (MHz)
MAXIMUM GAIN
22dB GAIN REDUCTION