Typical operating characteristics, One attenuator configuration – Rainbow Electronics MAX2057 User Manual
Page 4
MAX2057
1700MHz to 2500MHz Variable-Gain
Amplifier with Analog Gain Control
4
_______________________________________________________________________________________
GAIN vs. GAIN-CONTROL VOLTAGE
MAX2057 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
= +25
°C
T
A
= -40
°C
T
A
= +85
°C
GAIN vs. RF FREQUENCY
MAX2057 toc05
RF FREQUENCY (MHz)
GAIN (dB)
2300
2100
1900
1700
11
13
15
17
19
9
1500
2500
T
A
= -40
°C
T
A
= +25
°C
T
A
= +85
°C
REVERSE ISOLATION
vs. RF FREQUENCY
MAX2057 toc06
RF FREQUENCY (MHz)
REVERSE ISOLATION (dB)
2300
2100
1900
1700
30
35
40
25
1500
2500
T
A
= +25
°C
T
A
= +85
°C
T
A
= -40
°C
INPUT RETURN LOSS
vs. RF FREQUENCY
MAX2057 toc07
RF FREQUENCY (MHz)
INPUT RETURN LOSS (dB)
2300
2100
1700
1900
35
30
25
20
15
10
5
0
40
1500
2500
MAX GAIN
3dB GAIN REDUCTION
6dB GAIN REDUCTION
9dB, 12dB, 15dB, 18dB
GAIN REDUCTION
OUTPUT RETURN LOSS
vs. RF FREQUENCY
MAX2057 toc08
RF FREQUENCY (MHz)
OUTPUT RETURN LOSS (dB)
2300
2100
1700
1900
35
30
25
20
15
10
5
0
40
1500
2500
MAX GAIN, 3dB, 6dB, 9dB, 12dB,
15dB, AND 18dB GAIN REDUCTION
GAIN vs. RF FREQUENCY
MAX2057 toc09
RF FREQUENCY (MHz)
GAIN (dB)
2300
2100
1900
1700
-5
0
5
10
15
20
-10
1500
2500
MAXIMUM GAIN
18dB GAIN REDUCTION
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX2057 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
5.125
5.000
4.875
160
170
180
190
200
150
4.750
5.250
T
A
= +85
°C
T
A
= +25
°C
T
A
= -40
°C
INPUT RETURN LOSS
vs. RF FREQUENCY
MAX2057 toc02
RF FREQUENCY (MHz)
INPUT RETURN LOSS (dB)
2300
2100
1700
1900
35
30
25
20
15
10
5
0
40
1500
2500
T
A
= +85
°C
T
A
= +25
°C
T
A
= -40
°C
OUTPUT RETURN LOSS
vs. RF FREQUENCY
MAX2057 toc03
RF FREQUENCY (MHz)
OUTPUT 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
Typical Operating Characteristics
One Attenuator Configuration
(Typical Application Circuit with one attenuator 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.)