Datasheet
MAX2065
50MHz to 1000MHz High-Linearity, Serial/
Parallel-Controlled Analog/Digital VGA
14 ______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
CC
= +5.0V, LC mode, both attenuators set for maximum gain, P
IN
= -20dBm, f
RF
= 200MHz, and T
C
= +25°C, internal reference
used, unless otherwise noted.)
2nd HARMONIC vs. ANALOG ATTENUATOR
STATE (LOW CURRENT MODE)
DAC CODE
2nd HARMONIC (dBc)
32 64 96 160128 192 224 256
80
60
75
70
65
0
MAX2065 toc65
T
C
= +85°C
T
C
= -40°C
T
C
= +25°C
P
OUT
= 0dBm
RF = 200MHz
3rd HARMONIC vs. RF FREQUENCY
(LOW CURRENT MODE)
RF FREQUENCY (MHz)
3rd HARMONIC (dBc)
250 450 650 850 1050
110
60
100
90
80
70
50
MAX2065 toc66
T
C
= +85°C
T
C
= -40°C
T
C
= +25°C
P
OUT
= 3dBm
OIP2 vs. RF FREQUENCY
(LOW CURRENT MODE)
RF FREQUENCY (MHz)
OIP2 (dBm)
250 450 650 850 1050
75
40
70
65
60
45
50
55
50
MAX2065 toc71
V
CC
= 5.25V
V
CC
= 5.00V
V
CC
= 4.75V
P
OUT
= 0dBm/TONE
OIP2 vs. DIGITAL ATTENUATOR
STATE (LOW CURRENT MODE)
DIGITAL ATTENUATOR STATE (dB)
OIP2 (dBm)
84121620242832
75
40
70
65
60
45
50
55
0
MAX2065 toc72
P
OUT
= -3dBm/TONE
RF = 200MHz
T
C
= +85°C
T
C
= -40°C
T
C
= +25°C
OIP2 vs. ANALOG ATTENUATOR
STATE (LOW CURRENT MODE)
DAC CODE
OIP2 (dBm)
6432 96 128 160 192 224 256
75
40
70
65
60
45
50
55
0
MAX2065 toc73
P
OUT
= -3dBm/TONE
RF = 200MHz
T
C
= +85°C
T
C
= -40°C
T
C
= +25°C
3rd HARMONIC vs. RF FREQUENCY
(LOW CURRENT MODE)
RF FREQUENCY (MHz)
3rd HARMONIC (dBc)
250 450 650 850 1050
110
60
100
90
80
70
50
MAX2065 toc67
V
CC
= 5.25V
V
CC
= 5.00V
V
CC
= 4.75V
P
OUT
= 3dBm
3rd HARMONIC vs. DIGITAL ATTENUATOR
STATE (LOW CURRENT MODE)
DIGITAL ATTENUATOR STATE (dB)
3rd HARMONIC (dBc)
4 8 12 16 20 24 28 32
100
70
95
90
85
75
80
0
MAX2065 toc68
T
C
= +25°C
T
C
= +85°C
T
C
= -40°C
P
OUT
= 0dBm
RF = 200MHz
3rd HARMONIC vs. ANALOG ATTENUATOR
STATE (LOW CURRENT MODE)
DAC CODE
3rd HARMONIC (dBc)
32 64 96 128 160 192 224 256
100
70
95
90
85
75
80
0
MAX2065 toc69
T
C
= +25°C
T
C
= +85°C
T
C
= -40°C
P
OUT
= 0dBm
RF = 200MHz
OIP2 vs. RF FREQUENCY
(LOW CURRENT MODE)
RF FREQUENCY (MHz)
OIP2 (dBm)
250 450 650 850 1050
75
40
70
65
60
45
50
55
50
MAX2065 toc70
T
C
= +25°C
T
C
= +85°C
T
C
= -40°C
P
OUT
= 0dBm/TONE