Datasheet

16
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.)
GAIN vs. RF FREQUENCY
MAX2091 toc89
RF FREQUENCY (MHz)
GAIN (dB)
1785 1885
22
24
26
20
1685 1985
T
C
= -40°C
T
C
= +25°C
T
C
= +95°C
GAIN vs. RF FREQUENCY
MAX2091 toc90
RF FREQUENCY (MHz)
GAIN (dB)
1785 1885
22
24
26
20
1685 1985
STATE: P
LO
= -7dBm,
V
CC
= 4.75V, 5.0V, 5.25V, 5.5V
STATE: V
CC
= 5.5V,
P
LO
= -10dBm, -7dBm, -4dBm
GAIN vs. P
LVLSET
SETTING
MAX2091 toc91
P
LVLSET
(V)
GAIN (dB)
2.01.51.00.5
-10
0
10
20
30
-20
0 2.5
f
IF
= 350MHz
T
C
= -40°C, +25°C, +95°C
IF INPUT MATCH vs. IF FREQUENCY
MAX2091 toc92
IF FREQUENCY (MHz)
IF INPUT MATCH (dB)
300 400
-20
-30
-10
0
-40
200 500
T
C
= -40°C
T
C
= +95°C
T
C
= +25°C
RF OUTPUT MATCH vs. RF FREQUENCY
MAX2091 toc95
RF FREQUENCY (MHz)
RF OUTPUT MATCH (dB)
1785 1885
-20
-10
0
-30
1685 1985
T
C
= -40°C
T
C
= +95°C
T
C
= +25°C
IF INPUT MATCH vs. IF FREQUENCY
MAX2091 toc93
IF FREQUENCY (MHz)
IF INPUT MATCH (dB)
300 400
-20
-30
-10
0
-40
200 500
P
LO
= -10dBm, -7dBm, -4dBm
RF OUTPUT MATCH vs. RF FREQUENCY
MAX2091 toc96
RF FREQUENCY (MHz)
RF OUTPUT MATCH (dB)
1785 1885
-20
-10
0
-30
1685 1985
P
LO
= -10dBm, -7dBm, -4dBm
IF INPUT MATCH vs. IF FREQUENCY
MAX2091 toc94
IF FREQUENCY (MHz)
IF INPUT MATCH (dB)
300 400
-20
-30
-10
0
-40
200 500
V
CC
= 4.75V, 5.00V, 5.50V, 5.80V
RF OUTPUT MATCH vs. RF FREQUENCY
MAX2091 toc97
RF FREQUENCY (MHz)
RF OUTPUT MATCH (dB)
1785 1885
-20
-10
0
-30
1685 1985
V
CC
= 4.75V, 5.00V, 5.25V, 5.50V