
SiGe High-Linearity, 815MHz to 995MHz
Downconversion Mixer with LO Buffer/Switch
Typical Operating Characteristics (continued)
(MAX9986 Typical Application Circuit , V CC = +5.0V, P LO = 0dBm, P RF = -5dBm, f LO > f RF , f IF = 160MHz, unless otherwise noted.)
60
RF-TO-IF ISOLATION
vs. RF FREQUENCY
60
RF-TO-IF ISOLATION
vs. RF FREQUENCY
60
RF-TO-IF ISOLATION
vs. RF FREQUENCY
55
55
P LO = 0dBm
55
V CC = 4.75V, 5.0V, 5.25V
50
45
40
T C = +85 ° C
T C = +25 ° C
T C = -40 ° C, -25 ° C
50
45
40
P LO = -3dBm
P LO = +3dBm
50
45
40
35
30
35
30
35
30
740
790
840
890
940
990
1040
740
790
840
890
940
990
1040
740
790
840
890
940
990
1040
0
5
RF FREQUENCY (MHz)
RF PORT RETURN LOSS
vs. RF FREQUENCY
0
5
RF FREQUENCY (MHz)
IF PORT RETURN LOSS
vs. IF FREQUENCY
0
RF FREQUENCY (MHz)
LO SELECTED RETURN LOSS
vs. LO FREQUENCY
10
P LO = -3dBm, 0dBm, +3dBm
10
10
15
20
25
30
15
20
25
30
20
30
P LO = -3dBm
P LO = +3dBm
P LO = 0dBm
35
40
35
40
V CC = 4.75V, 5.0V, 5.25V
40
50
740
800
860
920
980
1040
1100
50
100
150
200
250
300
350
700
800
900
1000
1100
1200
1300
RF FREQUENCY (MHz)
LO UNSELECTED RETURN LOSS
vs. LO FREQUENCY
0
IF FREQUENCY (MHz)
240
LO FREQUENCY (MHz)
SUPPLY CURRENT
vs. TEMPERATURE (T C )
V CC = 5.25V
10
20
P LO = -3dBm, 0dBm, +3dBm
230
220
30
210
40
50
200
V CC = 4.75V
V CC = 5.0V
700
800
900
1000
1100
1200
1300
-40
-15
10
35
60
85
LO FREQUENCY (MHz)
TEMPERATURE ( ° C)
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7