
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
Typical Operating Characteristics (continued)
(Typical Application Circuit, optimized for the DCS/PCS band , R1 = R4 = 806 Ω , R2 = R5 = 2.32k Ω , V CC = +5.0V , P LO = 0dBm,
P RF = -5dBm, LO is low-side injected for a 190MHz IF, T C = +25°C, unless otherwise noted.)
2RF-2LO RESPONSE vs. RF FREQUENCY
2RF-2LO RESPONSE vs. RF FREQUENCY
2RF-2LO RESPONSE vs. RF FREQUENCY
90
P RF = -5dBm
90
P RF = -5dBm
90
P RF = -5dBm
T C = +85°C
80
70
80
70
80
70
60
50
T C = -30°C
T C = +25°C
60
50
P LO = -3dBm
P LO = 0dBm
P LO = +3dBm
60
50
V CC = 4.75V, 5.0V, 5.25V
1700
1900
2100
2300
2500
1700
1900
2100
2300
2500
1700
1900
2100
2300
2500
RF FREQUENCY (MHz)
3RF-3LO RESPONSE vs. RF FREQUENCY
RF FREQUENCY (MHz)
3RF-3LO RESPONSE vs. RF FREQUENCY
RF FREQUENCY (MHz)
3RF-3LO RESPONSE vs. RF FREQUENCY
95
85
T C = +25°C
P RF = -5dBm
95
85
P RF = -5dBm
95
85
P RF = -5dBm
V CC = 5.25V
T C = +85°C
75
75
75
65
65
P LO = -3dBm, 0dBm, +3dBm
65
V CC = 4.75V
T C = -30°C
V CC = 5.0V
55
55
55
1700
1900
2100
2300
2500
1700
1900
2100
2300
2500
1700
1900
2100
2300
2500
15
RF FREQUENCY (MHz)
INPUT P 1dB vs. RF FREQUENCY
15
RF FREQUENCY (MHz)
INPUT P 1dB vs. RF FREQUENCY
15
RF FREQUENCY (MHz)
INPUT P 1dB vs. RF FREQUENCY
14
T C = +85°C
14
14
V CC = 5.0V
V CC = 5.25V
13
13
13
12
T C = +25°C
12
P LO = -3dBm, 0dBm, +3dBm
12
11
10
T C = -30 ° C
11
10
11
10
V CC = 4.75V
1700
1900
2100
2300
2500
1700
1900
2100
2300
2500
1700
1900
2100
2300
2500
RF FREQUENCY (MHz)
RF FREQUENCY (MHz)
RF FREQUENCY (MHz)
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9