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Typical Operating Characteristics (continued)
(
Typical Application Circuit
, Downconversion mode, V
CC
= +5.0V, P
LO
= 0dBm, P
RF
= 0dBm, f
RF
= 1200MHz, LO is high-side
injected, T
C
= +25°C, unless otherwise noted.)
MAX2051
SiGe, High-Linearity, 850MHz to 1550MHz
Up/Downconversion Mixer with LO Buffer
_______________________________________________________________________________________
7
MAX2051 toc10
2LO-2RF RESPONSE vs. IF FREQUENCY
(DOWNCONVERSION MODE)
IF FREQUENCY (MHz)
2LO-2RF RESPONSE (dBc)
810620430240
45
55
65
75
85
50 1000
P
RF
= 0dBm
T
C
= -40°C, +25°C, +85°C
MAX2051 toc11
2LO-2RF RESPONSE vs. IF FREQUENCY
(DOWNCONVERSION MODE)
IF FREQUENCY (MHz)
2LO-2RF RESPONSE (dBc)
810620430240
45
55
65
75
85
50 1000
P
RF
= 0dBm
P
LO
= +3dBm
P
LO
= 0dBm
P
LO
= -3dBm
2LO-2RF RESPONSE vs. IF FREQUENCY
(DOWNCONVERSION MODE)
MAX2051 toc12
IF FREQUENCY (MHz)
2LO-2RF RESPONSE (dBc)
810620430240
45
55
65
75
85
50 1000
P
RF
= 0dBm
V
CC
= 4.75V, 5.0V, 5.25V
MAX2051 toc13
3LO-3RF RESPONSE vs. IF FREQUENCY
(DOWNCONVERSION MODE)
IF FREQUENCY (MHz)
3LO-3RF RESPONSE (dBc)
810620430240
45
55
65
75
85
50 1000
P
RF
= 0dBm
T
C
= -40°C, +25°C, +85°C
MAX2051 toc14
3LO-3RF RESPONSE vs. IF FREQUENCY
(DOWNCONVERSION MODE)
IF FREQUENCY (MHz)
3LO-3RF RESPONSE (dBc)
810620430240
45
55
65
75
85
50 1000
P
RF
= 0dBm
P
LO
= -3dBm, 0dBm, +3dBm
MAX2051 toc15
3LO-3RF RESPONSE vs. IF FREQUENCY
(DOWNCONVERSION MODE)
IF FREQUENCY (MHz)
3LO-3RF RESPONSE (dBc)
810620430240
45
55
65
75
85
50 1000
P
RF
= 0dBm
V
CC
= 4.75V, 5.0V, 5.25V
LO LEAKAGE AT IF PORT vs. LO FREQUENCY
(DOWNCONVERSION MODE)
MAX2051 toc16
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
2010182016301440
-40
-30
-20
-10
-50
1250 2200
T
C
= -40°C, +25°C, +85°C
MAX2051 toc17
LO LEAKAGE AT IF PORT vs. LO FREQUENCY
(DOWNCONVERSION MODE)
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
2010182016301440
-40
-30
-20
-10
-50
1250 2200
P
LO
= -3dBm, 0dBm, +3dBm
MAX2051 toc18
LO LEAKAGE AT IF PORT vs. LO FREQUENCY
(DOWNCONVERSION MODE)
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
2010182016301440
-40
-30
-20
-10
-50
1250 2200
V
CC
= 4.75V, 5.0V, 5.25V