
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 = 3000MHz to
4000MHz, LO is high-side injected for a 300MHz IF, P RF = 0dBm, P LO = 0dBm, T C = +25 N C, unless otherwise noted.)
RF PORT RETURN LOSS
vs. RF FREQUENCY
IF PORT RETURN LOSS
vs. IF FREQUENCY
0
5
10
15
20
25
30
f IF = 300MHz
P LO = -3dBm, 0dBm, +3dBm
0
5
10
15
20
25
30
f LO = 3800MH z
V CC = 4.75V, 5.0V, 5.25V
3000
3200
3400
3600
3800
4000
50
140
230
320
410
500
0
RF FREQUENCY (MHz)
LO PORT RETURN LOSS
vs. LO FREQUENCY
150
IF FREQUENCY (MHz)
SUPPLY CURRENT
vs. TEMPERATURE (T C )
10
P LO = -3dBm
145
V CC = 5.25V
140
20
30
P LO = +3dBm
P LO = 0dBm
135
V CC = 5.0V
130
V CC = 4.75V
40
50
125
120
3000
3500
4000
4500
-40
-15
10
35
60
85
LO FREQUENCY (MHz)
TEMPERATURE (°C)
______________________________________________________________________________________
25