Typical operating characteristics (continued) – Rainbow Electronics MAX2063 User Manual
Page 7
MAX2063
Dual 50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
7
Typical Operating Characteristics (continued)
(Typical Application Circuit, V
CC
= V
CC_AMP_1
= V
CC_AMP_2
= V
CC_RG
= 5V, attenuators are set for maximimum gain, RF ports are
driven from 50ω sources, AMPSET = 0, PD_1 = PD_2 = 0, P
IN
= -20dBm, f
RF
= 350MHz, T
C
= +25°C, unless otherwise noted.)
REVERSE GAIN OVER ATTENUATOR
SETTING vs. RF FREQUENCY
MAX2063 toc09
RF FREQUENCY (MHz)
REVERSE GAIN OVER ATTENUATOR SETTING (dB)
850
650
450
250
-70
-60
-50
-40
-30
-80
50
1050
ATTEN 0dB
ATTEN 31dB
ATTENUATOR PHASE CHANGE
BETWEEN STATES vs. RF FREQUENCY
MAX2063 toc10
RF FREQUENCY (MHz)
ATTENUATOR PHASE CHANGE BETWEEN STATES (DEGREES)
850
650
450
250
-20
-10
0
10
20
30
40
50
60
POSITIVE PHASE = ELECTRICALLY SHORTER
REFERENCED TO HIGH GAIN STATE
-30
50
1050
CHANNEL ISOLATION vs. RF FREQUENCY
(MAXIMUM GAIN)
MAX2063 toc11
RF FREQUENCY (MHz)
CHANNEL ISOLATION (dB)
850
650
450
250
35
45
55
65
75
25
50
1050
CH2 TO CH1
CH1 TO CH2
RELATIVE POWERS AT RF OUTPUTS
CHANNEL ISOLATION vs. RF FREQUENCY
(MINIMUM GAIN)
MAX2063 toc12
RF FREQUENCY (MHz)
CHANNEL ISOLATION (dB)
850
650
450
250
35
45
55
65
75
25
50
1050
CH1 TO CH2
CH2 TO CH1
RELATIVE POWERS AT RF OUTPUTS
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
850
650
450
250
4
5
6
7
8
9
3
50
1050
NOISE FIGURE vs. RF FREQUENCY
MAX2063 toc13
T
C
= -40°C
T
C
= +85°C
T
C
= +25°C
NOISE FIGURE vs. RF FREQUENCY
MAX2063 toc14
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
850
650
450
250
4
5
6
7
8
9
3
50
1050
V
CC
= 4.75V, 5.00V, 5.25V
OUTPUT P
1dB
vs. RF FREQUENCY
MAX2063 toc15
RF FREQUENCY (MHz)
OUTPUT
P
1dB
(dBm)
850
650
450
250
14
16
18
20
22
12
50
1050
T
C
= +25°C
T
C
= +85°C
T
C
= -40°C
OUTPUT P
1dB
vs. RF FREQUENCY
MAX2063 toc16
RF FREQUENCY (MHz)
OUTPUT
P
1dB
(dBm)
850
650
450
250
14
16
18
20
22
12
50
1050
V
CC
= 4.75V
V
CC
= 5.00V
V
CC
= 5.25V