
MAX2091
50MHz to 500MHz Analog VGA, 1735MHz to 1935MHz
Upconverting Mixer with Image Filtering, Threshold
Alarm Circuit, and Error Amplifier for Level Control
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 = +25 N C, 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 = 50 I , CTRL1 = 1 CTRL2 = 0, ALM_THRES = ALM = open, unless otherwise noted.)
0
LO PORT MATCH vs. LO FREQUENCY
0
LO PORT MATCH vs. LO FREQUENCY
0
LO PORT MATCH vs. LO FREQUENCY
-10
-20
-30
T C = -40°C
T C = +95°C
T C = +25°C
-10
-20
-30
P LO = -10dBm, -7dBm, -4dBm
-10
-20
-30
V CC = 4.75V, 5.00V, 5.25V, 5.50 V
1250
1450
1650
1850
1250
1450
1650
1850
1250
1450
1650
1850
7
LO FREQUENCY (MHz)
NOISE FIGURE vs. IF FREQUENCY
T C = +95°C
7
LO FREQUENCY (MHz)
NOISE FIGURE vs. IF FREQUENCY
7
LO FREQUENCY (MHz)
NOISE FIGURE vs. IF FREQUENCY
6
5
T C = +25°C
T C = -40°C
6
5
P LO = -10dBm, -7dBm, -4dBm
6
5
V CC = 4.75V, 5.00V, 5.50V, 5.80V
4
3
4
3
4
3
200
300
400
500
200
300
400
500
200
300
400
500
IF FREQUENCY (MHz)
OUTPUT IP3 vs. RF FREQUENCY
IF FREQUENCY (MHz)
OUTPUT IP3 vs. RF FREQUENCY
IF FREQUENCY (MHz)
OUTPUT IP3 vs. RF FREQUENCY
27
T C = -40°C
P IF = -25dBm/TONE
27
P IF = -25dBm/TONE
27
P IF = -25dBm/ TONE
25
T C = +25°C
25
25
23
23
P LO = -10dBm, -7dBm, -4dBm
23
V CC = 4.75V, 5.00V, 5.25V, 5.50V
T C = +95°C
21
21
21
1685
1785
1885
1985
1685
1785
1885
1985
1685
1785
1885
1985
RF FREQUENCY (MHz)
RF FREQUENCY (MHz)
RF FREQUENCY (MHz)
17