Datasheet
21
50MHz to 500MHz Analog VGA, 1735MHz to 1935MHz
Upconverting Mixer with Image Filtering, Threshold
Alarm Circuit, and Error Amplifier for Level Control
MAX2091
Typical Operating Characteristics (continued)
(Typical Application Circuit configured for Full Cascade with interstage attenuator network (IF_IN to RF_OUT), analog attenuator
set to maximum gain (V
PLVLSET
= 2.5V), V
CC
= 5.5V, T
C
= +25NC, f
IF_IN
= 350MHz, P
IF_IN
= -25dBm, f
LO
= 1485MHz, P
LO
= -7dBm, f
RF
= f
IF_IN
+ f
LO
, R
SOURCE
= R
LOAD
= 50I, CTRL1 = 1 CTRL2 = 0, ALM_THRES = ALM = open, unless otherwise noted.)
2RF AT RF PORT vs. IF FREQUENCY
MAX2091 toc134
IF FREQUENCY (MHz)
2RF AT RF PORT (dBc)
300 400
70
60
80
90
50
200 500
T
C
= -40°C, +25°C, +95°C
2RF AT RF PORT vs. IF FREQUENCY
MAX2091 toc135
IF FREQUENCY (MHz)
2RF AT RF PORT (dBc)
300 400
70
60
80
90
50
200 500
P
LO
= -10dBm, -7dBm, -4dBm
MEASUREMENT NOISE FLOOR APPROX 82dBc
2RF AT RF PORT vs. IF FREQUENCY
MAX2091 toc136
IF FREQUENCY (MHz)
2RF AT RF PORT (dBc)
300 400
70
60
80
90
50
200 500
V
CC
= 5.50V
V
CC
= 5.25V
V
CC
= 5.00V
V
CC
= 4.75V
MEASUREMENT NOISE FLOOR APPROX 82dBc
3RF AT RF PORT vs. IF FREQUENCY
MAX2091 toc137
IF FREQUENCY (MHz)
3RF AT RF PORT (dBc)
300 400
80
70
90
100
60
200 500
MEASUREMENT NOISE FLOOR APPROX 82dBc
T
C
= -40°C
T
C
= +95°C
T
C
= +25°C
IF-TO-RF ISOLATION vs. IF FREQUENCY
MAX2091 toc140
IF FREQUENCY (MHz)
IF-TO-RF ISOLATION (dB)
300 400
35
30
40
45
25
200 500
T
C
= -40°C
T
C
= +95°C
T
C
= +25°C
3RF AT RF PORT vs. IF FREQUENCY
MAX2091 toc138
IF FREQUENCY (MHz)
3RF AT RF PORT (dBc)
300 400
80
70
90
100
60
200 500
MEASUREMENT NOISE FLOOR APPROX 82dBc
P
LO
= -10dBm, -7dBm, -4dBm
IF-TO-RF ISOLATION vs. IF FREQUENCY
MAX2091 toc141
IF FREQUENCY (MHz)
IF-TO-RF ISOLATION (dB)
300 400
35
30
40
45
25
200 500
P
LO
= -4dBm
P
LO
= -10dBm
P
LO
= -7dBm
3RF AT RF PORT vs. IF FREQUENCY
MAX2091 toc139
IF FREQUENCY (MHz)
3RF AT RF PORT (dBc)
300 400
80
70
90
100
60
200 500
MEASUREMENT NOISE FLOOR APPROX 82dBc
V
CC
= 4.75V
V
CC
= 5.50V
V
CC
= 5.00V
V
CC
= 5.25V
IF-TO-RF ISOLATION vs. IF FREQUENCY
MAX2091 toc142
IF FREQUENCY (MHz)
IF-TO-RF ISOLATION (dB)
300 400
35
30
40
45
25
200 500
V
CC
= 4.75V, 5.00V, 5.25V, 5.50V