
825MHz to 915MHz, SiGe High-Linearity
Active Mixer
Typical Operating Characteristics
( Typical Application Circuit , V CC = 5V, f IF = 100MHz, P RF = -5dBm, P LO = 0dBm, T A = +25 ° C, unless otherwise noted.)
CONVERSION GAIN vs. RF FREQUENCY
CONVERSION GAIN vs. RF FREQUENCY
180
BIAS CURRENT vs. TEMPERATURE
4.0
LOW-SIDE INJECTION
f IF = 100MHz
3.5
HIGH-SIDE INJECTION
f IF = 120MHz
175
3.5
3.0
T A = -40 ° C
170
V CC = 5.25V
3.0
T A = -40 ° C
2.5
165
160
155
V CC = 5V
V CC = 4.75V
2.5
2.0
1.5
T A = +25 ° C
T A = +85 ° C
2.0
1.5
1.0
T A = +25 ° C
T A = +85 ° C
150
1.0
0.5
-40
-15
10
35
60
85
820
840
860
880
900
920
820
840
860
880
900
920
3.0
TEMPERATURE ( ° C)
CONVERSION GAIN vs. RF FREQUENCY
LOW-SIDE INJECTION
2.6
RF FREQUENCY (MHz)
CONVERSION GAIN vs. RF FREQUENCY
HIGH-SIDE INJECTION
3.0
RF FREQUENCY (MHz)
CONVERSION GAIN vs. RF FREQUENCY
LOW-SIDE INJECTION
2.8
f IF = 100MHz
2.4
f IF = 120MHz
2.8
V CC = 4.75V
f IF = 100MHz
2.6
2.6
2.4
2.2
2.4
V CC = 5.25V
2.2
P LO = -5dBm, 0dBm, +5dBm
2.0
P LO = -5dBm, 0dBm, +5dBm
2.2
V CC = 5V
2.0
1.8
1.8
1.6
2.0
1.8
820
840
860
880
900
920
820
840
860
880
900
920
820
840
860
880
900
920
RF FREQUENCY (MHz)
2 RF - 2 LO vs. RF FREQUENCY
LOW-SIDE INJECTION
RF FREQUENCY (MHz)
2 LO - 2 RF RESPONSE vs. RF FREQUENCY
HIGH-SIDE INJECTION
RF FREQUENCY (MHz)
2 RF - 2 LO RESPONSE vs. RF FREQUENCY
LOW-SIDE INJECTION
80
75
P RF = -5dBm
P LO = +5dBm
f IF = 100MHz
58
56
P RF = -5dBm
P LO = +5dBm
f IF = 120MHz
75
70
P RF = -5dBm
f IF = 100MHz
P LO = +5dBm
70
T A = -40 ° C
54
T A = +85 ° C
65
60
65
60
T A = +25 ° C
T A = +85 ° C
52
T A = -40 ° C
T A = +25 ° C
55
50
P LO = 0dBm
P LO = -5dBm
55
50
45
820
840
860
880
900
920
820
840
860
880
900
920
820
840
860
880
900
920
RF FREQUENCY (MHz)
RF FREQUENCY (MHz)
RF FREQUENCY (MHz)
4
_______________________________________________________________________________________