Rainbow Electronics MAX19985A - Manual (Page 9)

MAX19985A
Dual, SiGe, High-Linearity, 700MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
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CHANNEL ISOLATION vs. RF FREQUENCY
M
AX19985A toc19
RF FREQUENCY (MHz)
CHANNEL ISOLATION (dB)
900 800
40
35
50
45
55
60
30
700 1000
T C = -30 °C, +25°C, +85°C
CHANNEL ISOLATION vs. RF FREQUENCY
M
AX19985A toc20
RF FREQUENCY (MHz)
CHANNEL ISOLATION (dB)
900 800
40
35
50
45
55
60
30
700 1000
P LO = -3dBm, 0dBm, +3dBm
CHANNEL ISOLATION vs. RF FREQUENCY
M
AX19985A toc21
RF FREQUENCY (MHz)
CHANNEL ISOLATION (dB)
900 800
40
35
50
45
55
60
30
700 1000
V CC = 4.75V, 5.0V, 5.25V
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
M
AX19985A toc22
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
1100 1150 1000 1050 950
-40
-45
-30
-35
-25
-20
-50
900 1200
T C = -30 °C
T C = +25 °C, +85°C
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX19985A toc23
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
1150 1100 1050 1000 950
-45
-40
-35
-30
-25
-20
-50
900 1200
P LO = +3dBm
P LO = 0dBm
P LO = -3dBm
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX19985A toc24
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
1150 1100 1050 1000 950
-45
-40
-35
-30
-25
-20
-50
900 1200
V CC = 4.75V, 5.0V, 5.25V
RF-TO-IF ISOLATION
vs. RF FREQUENCY
MAX19985A toc25
RF FREQUENCY (MHz)
RF-TO-IF ISOLATION (dB)
800 900
45
40
35
50
30
700 1000
T C = +85 °C
T C = -30 °C T C = +25 °C
RF-TO-IF ISOLATION
vs. RF FREQUENCY
MAX19985A toc26
RF FREQUENCY (MHz)
RF-TO-IF ISOLATION (dB)
800 900
45
40
35
50
30
700 1000
P LO = -3dBm, 0dBm, +3dBm
RF-TO-IF ISOLATION
vs. RF FREQUENCY
MAX19985A toc27
RF FREQUENCY (MHz)
RF-TO-IF ISOLATION (dB)
800 900
45
40
35
50
30
700 1000
V
CC
= 4.75V, 5.0V, 5.25V
Typical Operating Characteristics (continued)
( Typical Application Circuit, V CC = +5.0V, P LO = 0dBm, P RF = -5dBm, LO is high-side injected for a 200MHz IF, T C =+25°C, unless
otherwise noted.)