Rainbow Electronics MAX19995 - Manual (Page 21)

MAX19995
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
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CHANNEL ISOLATION vs. RF FREQUENCY
MAX19995 toc108
RF FREQUENCY (MHz)
CHANNEL ISOLATION (dB)
2300 2100 1900
45
40
35
50
55
60
30
1700 2500
T C = -30 ° C, +25 ° C, +85 ° C
V CC = 3.3V
CHANNEL ISOLATION vs. RF FREQUENCY
MAX19995 toc109
RF FREQUENCY (MHz)
CHANNEL ISOLATION (dB)
2300 2100 1900
45
40
35
50
55
60
30
1700 2500
P LO = -3dBm, 0dBm, +3dBm
V CC = 3.3V
CHANNEL ISOLATION vs. RF FREQUENCY
MAX19995 toc110
RF FREQUENCY (MHz)
CHANNEL ISOLATION (dB)
2300 2100 1900
45
40
35
50
55
60
30
1700 2500
V CC = 3.0V, 3.3V, 3.6V
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX19995 toc111
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
2100 1900 1700
-45
-50
-55
-40
-35
-30
-60
1500 2300
T C = +85 ° C
T C = -30 ° C
T C = +25 ° C
V CC = 3.3V
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX19995 toc112
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
2100 1900 1700
-45
-50
-55
-40
-35
-30
-60
1500 2300
P
LO
= -3dBm
P LO = 0dBm
P LO = +3dBm
V CC = 3.3V
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX19995 toc113
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
2100 1900 1700
-45
-50
-55
-40
-35
-30
-60
1500 2300
V CC = 3.3V
V CC = 3.0V
V CC = 3.6V
RF-TO-IF ISOLATION vs. RF FREQUENCY
MAX19995 toc114
RF FREQUENCY (MHz)
RF-TO-IF ISOLATION (dB)
2300 2100 1900
45
35
40
50
60
55
30
1700 2500
T C = -30 ° C
T C = +85 ° C
T C = +25 ° C
V CC = 3.3V
Typical Operating Characteristics (continued)
( Typical Application Circuit, R1 = R4 = 909
Ω, R2 = R5 = 2.49kΩ, V
CC = +3.3V, P LO = 0dBm, P RF = -5dBm, LO is low-side injected
for a 190MHz IF, T C = +25°C, unless otherwise noted.)
RF-TO-IF ISOLATION vs. RF FREQUENCY
MAX19995 toc115
RF FREQUENCY (MHz)
RF-TO-IF ISOLATION (dB)
2300 2100 1900
45
35
40
50
60
55
30
1700 2500
V
CC
= 3.3V
P LO = -3dBm, 0dBm, +3dBm
RF-TO-IF ISOLATION vs. RF FREQUENCY
MAX19995 toc116
RF FREQUENCY (MHz)
RF-TO-IF ISOLATION (dB)
2300 2100 1900
45
35
40
50
60
55
30
1700 2500
V CC = 3.0V, 3.3V, 3.6V