Datasheet

MAX2065
50MHz to 1000MHz High-Linearity, Serial/
Parallel-Controlled Analog/Digital VGA
6 _______________________________________________________________________________________
GAIN OVER DIGITAL ATTENUATOR
SETTING vs. RF FREQUENCY
MAX2065 toc04
RF FREQUENCY (MHz)
GAIN (dB)
850450 650250
-8
2
12
22
-18
50 1050
DIGITAL ATTENUATOR RELATIVE
ERROR vs. RF FREQUENCY
MAX2065 toc05
RF FREQUENCY (MHz)
RELATIVE ERROR (dB)
850450 650250
-0.50
0
0.50
1.00
-0.75
-0.25
0.25
0.75
-1.00
50 1050
DIGITAL ATTENUATOR ABSOLUTE
ERROR vs. RF FREQUENCY
MAX2065 toc06
RF FREQUENCY (MHz)
ABSOLUTE ERROR (dB)
850450 650250
-0.50
0
0.50
1.00
-0.75
-0.25
0.25
0.75
-2.00
-1.25
-1.50
-1.70
-1.00
50 1050
INPUT MATCH OVER DIGITAL ATTENUATOR
SETTING vs. RF FREQUENCY
MAX2065 toc07
RF FREQUENCY (MHz)
INPUT MATCH (dB)
800400 600200
-15
-10
-5
0
-30
-25
-20
0 1000
16dB
0dB, 8dB
4dB
31dB
1dB, 2dB
OUTPUT MATCH OVER DIGITAL ATTENUATOR
SETTING vs. RF FREQUENCY
MAX2065 toc08
RF FREQUENCY (MHz)
OUTPUT MATCH (dB)
800400 600200
-15
-10
-5
0
-30
-25
-20
0 1000
0dB, 1dB, 2dB, 4dB
16dB, 31dB
8dB
REVERSE ISOLATION OVER DIGITAL
ATTENUATOR SETTING vs. RF FREQUENCY
MAX2065 toc09
RF FREQUENCY (MHz)
REVERSE ISOLATION (dB)
850450 650250
-50
-40
-30
-70
-60
50 1050
DIGITAL ATTENUATOR 0dB
DIGITAL ATTENUATOR 31dB
SUPPLY CURRENT vs. V
CC
MAX2065 toc01
V
CC
(V)
SUPPLY CURRENT (mA)
5.1255.0004.875
110
120
130
140
150
100
4.750 5.250
T
C
= +85°C
T
C
= +25°C
T
C
= -40°C
GAIN vs. RF FREQUENCY
MAX2065 toc02
RF FREQUENCY (MHz)
GAIN (dB)
850450 650250
15
16
17
19
18
20
21
22
14
50 1050
T
C
= +25°C
T
C
= -40°C
T
C
= +85°C
GAIN vs. RF FREQUENCY
MAX2065 toc03
RF FREQUENCY (MHz)
GAIN (dB)
850450 650250
15
16
17
19
18
20
21
22
14
50 1050
V
CC
= 5.25V
V
CC
= 5.00V
V
CC
= 4.75V
Typical Operating Characteristics
(V
CC
= +5.0V, HC mode, both attenuators set for maximum gain, P
IN
= -20dBm, f
RF
= 200MHz, and T
C
= +25°C, internal DAC refer-
ence used, unless otherwise noted.)