Datasheet

MAX2067
50MHz to 1000MHz High-Linearity,
Serial/Analog-Controlled VGA
_______________________________________________________________________________________ 7
NOISE FIGURE vs. RF FREQUENCY
MAX2067 toc13
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
7
6
5
4
3
2
50 450 850 1050650250
V
CC
= 4.75V, 5.00V, 5.25V
OUTPUT P
1dB
vs. RF FREQUENCY
MAX2067 toc14
RF FREQUENCY (MHz)
OUTPUT P
1dB
(dBm)
21
20
19
18
17
16
15
50 450 850 1050650250
T
C
= +85
°
C
T
C
= +85
°
C
T
C
= -40
°
C
T
C
= -40
°
C
T
C
= +25
°
C
T
C
= +25
°
C
OUTPUT P
1dB
vs. RF FREQUENCY
MAX2067 toc15
RF FREQUENCY (MHz)
OUTPUT P
1dB
(dBm)
21
20
19
18
17
16
15
50 450 850 1050650250
V
CC
= 5.25V
V
CC
= 4.75V
V
CC
= 5.00V
OUTPUT IP3 vs. RF FREQUENCY
MAX2067 toc16
RF FREQUENCY (MHz)
OUTPUT IP3 (dBm)
50
40
45
35
30
50 450 850 1050650250
T
C
= +25
°
C
P
OUT
= 0dBm/TONE
T
C
= -40
°
C
T
C
= +85°C
OUTPUT IP3 vs. RF FREQUENCY
MAX2067 toc17
RF FREQUENCY (MHz)
OUTPUT IP3 (dBm)
50
40
45
35
30
50 450 850 1050650250
V
CC
= 5.00V
P
OUT
= 0dBm/TONE
V
CC
= 4.75V
V
CC
= 5.25V
OUTPUT IP3 vs.
ATTENUATOR STATE
MAX2067 toc18
DAC CODE
OUTPUT IP3 (dBm)
50
40
45
35
30
0 256192128 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
REVERSE ISOLATION OVER ATTENUATOR
SETTING vs. RF FREQUENCY
MAX2067 toc10
RF FREQUENCY (MHz)
REVERSE ISOLATION (dB)
850450 650250
-25
-35
-45
-55
-65
-75
50 1050
DAC CODE 0
DAC CODE 255
S21 PHASE CHANGE vs.
ATTENUATOR SETTING
MAX2067 toc11
DAC CODE
S21 PHASE CHANGE (DEG)
128 19216032 9664 224
80
70
60
50
40
30
20
10
0
-10
0256
50MHz
200MHz
1000MHz
REFERENCED TO HIGH GAIN STATE.
POSITIVE PHASE = ELECTRICALLY
SHORTER.
450MHz
NOISE FIGURE vs. RF FREQUENCY
MAX2067 toc12
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
7
6
5
4
3
2
50 450 850 1050650250
T
C
= +85
°
C
T
C
= +25
°
C
T
C
= -40
°
C
Typical Operating Characteristics (continued)
(V
CC
= V
DD
= +5.0V, HC 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.)