MAX2091 MAXIM [Maxim Integrated Products], MAX2091 Datasheet - Page 21

• Manufacturer Part Number: MAX2091
• Description: 50MHz to 500MHz Analog VGA, 1735MHz to 1935MHz Upconverting Mixer with Image Filtering, Threshold Alarm Circuit, and Error Amplifier for Level Control
• Manufacturer: MAXIM [Maxim Integrated Products]

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