High-Linearity, 650MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
Typical Operating Characteristics (continued)
(Typical Application Circuit, L1 = 4.7nH, C4 = 6pF, C5 not used, V CC = 5.0V, P LO = 0dBm, P IF = 0dBm, f RF = f LO + f IF , f IF = 160MHz,
T C = +25°C, unless otherwise noted.)
Upconverter Curves
LO LEAKAGE AT RF PORT vs. LO FREQUENCY
(L-C BPF TUNED FOR 810MHz RF FREQUENCY)
-15
LO LEAKAGE AT RF PORT vs. LO FREQUENCY
(L-C BPF TUNED FOR 810MHz RF FREQUENCY)
-15
LO LEAKAGE AT RF PORT vs. LO FREQUENCY
(L-C BPF TUNED FOR 810MHz RF FREQUENCY)
-15
-20
-25
T C = -40 ° C, -25 ° C
-20
-25
-20
-25
V CC = 5.25V
-30
T C = +85 ° C
T C = +25 ° C
-30
P LO = -3dBm, 0dBm, +3dBm
-30
V CC = 4.75V
V CC = 5.0V
-35
-35
-35
910
960
1010
1060
1110
1160
1210
910
960
1010
1060
1110
1160
1210
910
960
1010
1060
1110
1160
1210
LO FREQUENCY (MHz)
IF LEAKAGE AT RF PORT vs. LO FREQUENCY
(L-C BPF TUNED FOR 810MHz RF FREQUENCY)
-50
LO FREQUENCY (MHz)
IF LEAKAGE AT RF PORT vs. LO FREQUENCY
(L-C BPF TUNED FOR 810MHz RF FREQUENCY)
-50
LO FREQUENCY (MHz)
IF LEAKAGE AT RF PORT vs. LO FREQUENCY
(L-C BPF TUNED FOR 810MHz RF FREQUENCY)
-50
-60
T C = +25 ° C
-60
P LO = -3dBm
-60
V CC = 5.0V
V CC = 5.25V
T C = -40 ° C, -25 ° C
P LO = 0dBm
-70
-70
-70
-80
T C = +85 ° C
-80
P LO = +3dBm
-80
V CC = 4.75V
-90
-100
-90
-100
-90
-100
910
960
1010
1060
1110
1160
1210
910
960
1010
1060
1110
1160
1210
910
960
1010
1060
1110
1160
1210
LO FREQUENCY (MHz)
LO FREQUENCY (MHz)
RF PORT RETURN LOSS vs. RF FREQUENCY
(L-C BPF TUNED FOR 810MHz RF FREQUENCY)
0
L1 AND C4 BPF
REMOVED
5
L1 AND C4 BPF
10
INSTALLED
15
20
THE OPTIONAL L-C BPF
25
ENHANCES PERFORMANCE
IN THE UPCONVERTER
30
MODE, BUT LIMITS
RF BANDWIDTH
35
LO FREQUENCY (MHz)
750
800
850
900
950
1000
1050
RF FREQUENCY (MHz)
______________________________________________________________________________________
15
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