Rainbow Electronics MAX19985A - Manual (Page 15)

MAX19985A
Dual, SiGe, High-Linearity, 700MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
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CHANNEL ISOLATION
vs. RF FREQUENCY
MAX19985A toc71
RF FREQUENCY (MHz)
CHANNEL ISOLATION (dB)
900 800
40
55
35
50
45
60
30
700 1000
T
C
= -30°C, +25°C, +85°C
V CC = 3.3V
CHANNEL ISOLATION
vs. RF FREQUENCY
MAX19985A toc72
RF FREQUENCY (MHz)
CHANNEL ISOLATION (dB)
900 800
40
55
35
50
45
60
30
700 1000
P
LO
= -3dBm, 0dBm, +3dBm
V CC = 3.3V
CHANNEL ISOLATION
vs. RF FREQUENCY
MAX19985A toc73
RF FREQUENCY (MHz)
CHANNEL ISOLATION (dB)
900 800
40
55
35
50
45
60
30
700 1000
V CC = 3.0V, 3.3V, 3.6V
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX19985A toc74
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
1100 1000
-40
-25
-45
-30
-35
-20
-50
900 1200 1050 950 1150
T C = +85°C
T C = -30°C
T C = +25°C
V CC = 3.3V
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX19985A toc75
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
1100 1000
-40
-25
-45
-30
-35
-20
-50
900 1200 1050 950 1150
P LO = +3dBm
P LO = -3dBm
P
LO
= 0dBm
V CC = 3.3V
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX19985A toc76
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
1100 1000
-40
-25
-45
-30
-35
-20
-50
900 1200 1050 950 1150
V CC = 3.6V
V CC = 3.0V
V
CC
= 3.3V
RF-TO-IF ISOLATION
vs. RF FREQUENCY
MAX19985A toc77
RF FREQUENCY (MHz)
RF-TO-IF ISOLATION (dB)
900 800
45
35
40
50
30
700 1000
T C = +85°C
T C = -30°C
T C = +25°C
V CC = 3.3V
RF-TO-IF ISOLATION
vs. RF FREQUENCY
MAX19985A toc78
RF FREQUENCY (MHz)
RF-TO-IF ISOLATION (dB)
900 800
45
35
40
50
30
700 1000
P LO = -3dBm, 0dBm, +3dBm
V CC = 3.3V
RF-TO-IF ISOLATION
vs. RF FREQUENCY
MAX19985A toc79
RF FREQUENCY (MHz)
RF-TO-IF ISOLATION (dB)
900 800
45
35
40
50
30
700 1000
V CC = 3.0V, 3.3V, 3.6V
Typical Operating Characteristics (continued)
( Typical Application Circuit, V CC = +3.3V, P LO = 0dBm, P RF = -5dBm, LO is high-side injected for a 200MHz IF, T C =+25°C, unless
otherwise noted.)