
Dual, SiGe, High-Linearity, 1200MHz to 2000MHz
Downconversion Mixer with LO Buffer/Switch
Typical Operating Characteristics (continued)
( Typical Application Circuit optimized for the Extended RF Band (see Table 1) . V CC = 5.0V, f RF = 1700MHz to 2000MHz, LO is
low-side injected for a 350MHz IF, P RF = -5dBm, P LO = 0dBm, T C = +25°C, unless otherwise noted.)
0
5
10
15
RF PORT RETURN LOSS
vs. RF FREQUENCY
IF = 350MHz
0
5
10
15
IF PORT RETURN LOSS
vs. IF FREQUENCY
0
10
20
LO SELECTED PORT RETURN LOSS
vs. LO FREQUENCY
P LO = +3dBm
P LO = 0dBm
20
P LO = -3dBm, 0dBm, +3dBm
20
25
30
25
30
V CC = 4.75V, 5.0V, 5.25V
30
40
P LO = -3dBm
1700
1800
1900
2000
50
140
230
320
410
500
1400
1600
1800
2000
2200
RF FREQUENCY (MHz)
LO UNSELECTED PORT RETURN LOSS
vs. LO FREQUENCY
0
IF FREQUENCY (MHz)
360
SUPPLY CURRENT
vs. TEMPERATURE (T C )
LO FREQUENCY (MHz)
10
350
V CC = 5.25V
V CC = 5.0V
340
20
30
P LO = -3dBm, 0dBm, +3dBm
330
320
310
V CC = 4.75V
40
1400
1600
1800
2000
2200
300
-40
-15
10
35
60
85
LO FREQUENCY (MHz)
TEMPERATURE (°C)
21