High-Linearity, 815MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
Typical Operating Characteristics (continued)
(Typical Application Circuit, C5 = 3.3pF, L1 and C4 not used, V CC = +5.0V, P LO = 0dBm, P RF = 0dBm, f LO < f RF , f IF = 90MHz, unless
otherwise noted.)
Downconverter Curves
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
50
T C = +85 ° C
55
50
55
50
45
T C = -40 ° C
T C = +25 ° C
45
P LO = -3dBm, 0dBm, +3dBm
45
V CC = 4.75V, 5.0V, 5.25V
40
35
30
40
35
30
40
35
30
800
850
900
950
1000
800
850
900
950
1000
800
850
900
950
1000
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
5
RF FREQUENCY (MHz)
LO SELECTED RETURN LOSS
vs. LO FREQUENCY
10
10
15
V CC = 4.75V, 5.0V, 5.25V
10
15
P LO = 0dBm
P LO = +3dBm
15
20
20
25
20
25
25
P LO = -3dBm, 0dBm, +3dBm
30
35
30
35
P LO = -3dBm
INCLUDES IF TRANSFORMER
30
40
40
770
820
870
920
970
1020
0
100
200
300
400
500
500
600
700
800
900
1000
RF FREQUENCY (MHz)
LO UNSELECTED RETURN LOSS
vs. LO FREQUENCY
0
5
10
15
IF FREQUENCY (MHz)
100
90
LO FREQUENCY (MHz)
SUPPLY CURRENT vs. TEMPERATURE (T C )
V CC = 5.25V
20
P LO = -3dBm, 0dBm, +3dBm
80
V CC = 5.0V
25
30
35
40
70
60
V CC = 4.75V
500
600
700
800
900
1000
-40
-15
10
35
60
85
LO FREQUENCY (MHz)
TEMPERATURE ( ° C)
8
_______________________________________________________________________________________
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