SiGe High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
Typical Operating Characteristics
(MAX9994 Typical Application Circuit, V
= +5.0V, P = 0dBm, P = -5dBm, f > f , f = 200MHz, unless otherwise noted.)
LO RF RF LO IF
CC
CONVERSION GAIN vs. RF FREQUENCY
CONVERSION GAIN vs. RF FREQUENCY
CONVERSION GAIN vs. RF FREQUENCY
11
10
9
11
10
9
11
10
9
T
= -25°C
C
P
= -3dBm, 0dBm, +3dBm
LO
8
8
8
V
= 4.75V, 5.0V, 5.25V
CC
T
= +85°C
C
T
= +25°C
C
7
7
7
6
6
6
1500 1650 1800 1950 2100 2250 2400
RF FREQUENCY (MHz)
1500 1650 1800 1950 2100 2250 2400
RF FREQUENCY (MHz)
1500 1650 1800 1950 2100 2250 2400
RF FREQUENCY (MHz)
INPUT IP3 vs. RF FREQUENCY
INPUT IP3 vs. RF FREQUENCY
INPUT IP3 vs. RF FREQUENCY
28
27
26
25
24
23
22
21
28
27
26
25
24
23
22
28
27
26
25
24
23
22
T
= +25°C
C
P
= +3dBm
LO
V
= 4.75V
CC
T
= -25°C
C
P
= -3dBm, 0dBm
V
= 5.0V, 5.25V
LO
CC
T
= +85°C
C
1500 1650 1800 1950 2100 2250 2400
RF FREQUENCY (MHz)
1500 1650 1800 1950 2100 2250 2400
RF FREQUENCY (MHz)
1500 1650 1800 1950 2100 2250 2400
RF FREQUENCY (MHz)
NOISE FIGURE vs. RF FREQUENCY
NOISE FIGURE vs. RF FREQUENCY
NOISE FIGURE vs. RF FREQUENCY
13
12
11
10
9
12
11
10
9
12
11
10
9
V
= 5.25V
T
= +85°C
= +25°C
CC
C
P
= -3dBm
LO
T
C
P
= 0dBm
V
= 4.75V
LO
CC
T
= -25°C
C
8
P
= +3dBm
LO
V
= 5.0V
CC
8
8
7
6
7
7
1500 1650 1800 1950 2100 2250 2400
RF FREQUENCY (MHz)
1500 1650 1800 1950 2100 2250 2400
RF FREQUENCY (MHz)
1500 1650 1800 1950 2100 2250 2400
RF FREQUENCY (MHz)
4
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