MAX2067
50MHz to 1000MHz High-Linearity,
Serial/Analog-Controlled VGA
12 ______________________________________________________________________________________
OUTPUT IP3 vs. RF FREQUENCY
(LOW-CURRENT MODE)
MAX2067 toc43
RF FREQUENCY (MHz)
OUTPUT IP3 (dBm)
40
45
30
35
25
50 450 850 1050650250
T
C
= -40
°
C
T
C
= +85
°
C
T
C
= +25
°
C
P
OUT
= 0dBm/TONE
OUTPUT IP3 vs. RF FREQUENCY
(LOW-CURRENT MODE)
MAX2067 toc44
RF FREQUENCY (MHz)
OUTPUT IP3 (dBm)
40
45
30
35
25
50 450 850 1050650250
P
OUT
= 0dBm/TONE
V
CC
= 5.00V
V
CC
= 5.25V
V
CC
= 4.75V
OUTPUT IP3 vs. ATTENUATOR STATE
(LOW-CURRENT MODE)
MAX2067 toc45
DAC CODE
OUTPUT IP3 (dBm)
45
40
35
30
0256192128 2241609632 64
T
C
= +25
°
C, +85
°
C
TONE = LSB, USB
P
OUT
= -3dBm/TONE
f
RF
= 200MHz
T
C
= -40
°
C, TONE = LSB, USB
2nd HARMONIC vs. RF FREQUENCY
(LOW-CURRENT MODE)
MAX2067 toc46
RF FREQUENCY (MHz)
2nd HARMONIC (dBc)
80
90
60
70
50
40
50 450 850 1050650250
T
C
= -40
°
C
T
C
= +85
°
C
T
C
= +25
°
C
P
OUT
= 3dBm
2nd HARMONIC vs. RF FREQUENCY
(LOW-CURRENT MODE)
MAX2067 toc47
RF FREQUENCY (MHz)
2nd HARMONIC (dBc)
80
90
60
50
70
40
50 450 850 1050650250
P
OUT
= 3dBm
V
CC
= 5.00V
V
CC
= 5.25V
V
CC
= 4.75V
2nd HARMONIC vs. ATTENUATOR STATE
(LOW-CURRENT MODE)
MAX2067 toc48
DAC CODE
2nd HARMONIC (dBc)
90
70
80
60
50
0 96 160 22432 25619212864
T
C
= +25
°
C
P
OUT
= 0dBm
f
RF
= 200MHz
T
C
= -40
°
C
T
C
= +85
°
C
3rd HARMONIC vs. RF FREQUENCY
(LOW-CURRENT MODE)
MAX2067 toc49
RF FREQUENCY (MHz)
3rd HARMONIC (dBc)
90
100
80
70
60
50 450 850 1050650250
T
C
= -40
°
C
T
C
= +85°C
T
C
= +25
°
C
P
OUT
= 3dBm
3rd HARMONIC vs. RF FREQUENCY
(LOW-CURRENT MODE)
MAX2067 toc50
RF FREQUENCY (MHz)
3rd HARMONIC (dBc)
90
100
70
80
60
50 450 850 1050650250
P
OUT
= 3dBm
V
CC
= 5.00V
V
CC
= 5.25V
V
CC
= 4.75V
3rd HARMONIC vs. ATTENUATOR STATE
(LOW-CURRENT MODE)
MAX2067 toc51
DAC CODE
3rd HARMONIC (dBc)
100
85
90
75
95
80
70
0 96 160 22432 25619212864
T
C
= +25
°
C
P
OUT
= 0dBm
f
RF
= 200MHz
T
C
= -40°C
T
C
= +85
°
C
Typical Operating Characteristics (continued)
(V
CC
= V
DD
= +5.0V, LC mode, attenuator set for maximum gain, P
IN
= -20dBm, f
RF
= 200MHz, and T
C
= +25°C, internal DAC refer-
ence used, unless otherwise noted.)