
SiGe High-Linearity, 2000MHz to 3000MHz
Upconversion/Downconversion Mixer with LO Buffer
Typical Operating Characteristics (continued)
( Typical Application Circuit with tuning elements outlined in Table 1, V CC = +5.0V , f RF > f LO , f IF = 300MHz, P RF = 0dBm, P LO = 0dBm,
T C = +25 N C, unless otherwise noted.)
+5.0V Downconverter Curves
-10
-20
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
T C = -40NC
-10
-20
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
-10
-20
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
-30
-40
T C = +85NC
T C = +25NC
-30
-40
P LO = -3dBm, 0dBm, +3dBm
-30
-40
V CC = 4.75V, 5.0V, 5.25V
1700
1900
2100
2300
2500
2700
1700
1900
2100
2300
2500
2700
1700
1900
2100
2300
2500
2700
60
50
40
LO FREQUENCY (MHz)
RF-TO-IF ISOLATION
vs. RF FREQUENCY
T C = +85NC
60
50
40
LO FREQUENCY (MHz)
RF-TO-IF ISOLATION
vs. RF FREQUENCY
60
50
40
LO FREQUENCY (MHz)
RF-TO-IF ISOLATION
vs. RF FREQUENCY
30
T C = +25NC
30
P LO = -3dBm, 0dBm, +3dBm
30
V CC = 4.75V, 5.0V, 5.25V
T C = -40NC
20
20
20
2000
2200
2400
2600
2800
3000
2000
2200
2400
2600
2800
3000
2000
2200
2400
2600
2800
3000
-20
-25
-30
-35
-40
RF FREQENCY (MHz)
LO LEAKAGE AT RF PORT
vs. LO FREQUENCY
T C = -40NC, +25NC, +85NC
-20
-25
-30
-35
-40
RF FREQUENCY (MHz)
LO LEAKAGE AT RF PORT vs.
LO FREQUENCY
P LO = -3dBm, 0dBm, +3dBm
-20
-25
-30
-35
-40
RF FREQUENCY (MHz)
LO LEAKAGE AT RF PORT
vs. LO FREQUENCY
V CC = 4.75V, 5.0V, 5.25V
1800
2000
2200
2400
2600
2800
1800
2000
2200
2400
2600
2800
1800
2000
2200
2400
2600
2800
LO FREQUENCY (MHz)
LO FREQUENCY (MHz)
LO FREQUENCY (MHz)
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