
SiGe, High-Linearity, 2300MHz to 4000MHz
Upconversion/Downconversion Mixer with LO Buffer
Typical Operating Characteristics (continued)
( Typical Application Circuit with tuning elements outlined in Table 1, Downconverter Mode, V CC = 5.0V, f RF = 2300MHz to
2900MHz, LO is high-side injected for a 300MHz IF, P RF = 0dBm, P LO = 0dBm, T C = +25 N C, unless otherwise noted.)
3LO - 3RF RESPONSE
vs. RF FREQUENCY
3LO - 3RF RESPONSE
vs. RF FREQUENCY
3LO - 3RF RESPONSE
vs. RF FREQUENCY
85
P RF = 0dBm
85
P RF = 0dBm
85
P RF = 0dBm
T C = +85°C
P LO = +3dBm
75
T C = +25°C
75
75
V CC = 5.25V
65
T C = -40°C
65
P LO = 0dBm
P LO = -3dBm
65
V CC = 5.0V
V CC = 4.75V
55
55
55
2300
2450
2600
2750
2900
2300
2450
2600
2750
2900
2300
2450
2600
2750
2900
-20
RF FREQUENCY (MHz)
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
-20
RF FREQUENCY (MHz)
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
-20
RF FREQUENCY (MHz)
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
-25
T C = +25°C
-25
-25
V CC = 4.75V
T C = +85°C
-30
-30
P LO = -3dBm, 0dBm, +3dBm
-30
V CC = 5.0V
-35
-40
T C = -40°C
-35
-40
-35
-40
V CC = 5.25V
2600
2750
2900
3050
3200
2600
2750
2900
3050
3200
2600
2750
2900
3050
3200
60
50
LO FREQUENCY (MHz)
RF-TO-IF ISOLATION vs. RF FREQUENCY
T C = -40°C
60
50
LO FREQUENCY (MHz)
RF-TO-IF ISOLATION vs. RF FREQUENCY
60
50
LO FREQUENCY (MHz)
RF-TO-IF ISOLATION vs. RF FREQUENCY
40
T C = +25°C
T C = +85°C
40
P LO = -3dBm, 0dBm, +3dBm
40
V CC = 4.75V, 5.0V, 5.25V
30
20
30
20
30
20
2300
2450
2600
2750
2900
2300
2450
2600
2750
2900
2300
2450
2600
2750
2900
RF FREQUENCY (MHz)
RF FREQUENCY (MHz)
RF FREQUENCY (MHz)
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