Datasheet

MAX9985
Dual, SiGe, High-Linearity, 700MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
6
Maxim Integrated
Typical Operating Characteristics (continued)
(Using the Typical Application Circuit , V
CC
= 5.0V, P
LO
= 0dBm, P
RF
= -5dBm, f
RF
> f
LO
, f
IF
= 100MHz, T
C
= +25°C, unless other-
wise noted.)
50
60
55
70
65
75
80
700 800 900 1000
2RF-2LO RESPONSE vs. RF FREQUENCY
MAX9985 toc10
RF FREQUENCY (MHz)
2RF-2LO RESPONSE (dBc)
P
RF
= -5dBm
T
C
= -30°C
T
C
= +25°C
T
C
= +85°C
50
60
55
70
65
75
80
700 800 900 1000
2RF-2LO RESPONSE vs. RF FREQUENCY
MAX9985 toc11
RF FREQUENCY (MHz)
2RF-2LO RESPONSE (dBc)
P
RF
= -5dBm
P
LO
= -3dBm
P
LO
= 0dBm
P
LO
= +3dBm
50
60
55
70
65
75
80
700 800 900 1000
2RF-2LO RESPONSE vs. RF FREQUENCY
MAX9985 toc12
RF FREQUENCY (MHz)
2RF-2LO RESPONSE (dBc)
P
RF
= -5dBm
V
CC
= 4.75V, 5.0V, 5.25V
85
75
65
55
95
700 800 900 1000
3RF-3LO RESPONSE vs. RF FREQUENCY
MAX9985 toc13
RF FREQUENCY (MHz)
3RF-3LO RESPONSE (dBc)
P
RF
= -5dBm
T
C
= -30°C
T
C
= +85°C
T
C
= +25°C
85
75
65
55
95
700 800 900 1000
3RF-3LO RESPONSE vs. RF FREQUENCY
MAX9985 toc14
RF FREQUENCY (MHz)
3RF-3LO RESPONSE (dBc)
P
RF
= -5dBm
P
LO
= -3dBm, 0dBm, +3dBm
85
75
65
55
95
700 800 900 1000
3RF-3LO RESPONSE vs. RF FREQUENCY
MAX9985 toc15
RF FREQUENCY (MHz)
3RF-3LO RESPONSE (dBc)
P
RF
= -5dBm
V
CC
= 5.25V
V
CC
= 4.75V
V
CC
= 5.0V
19
14
13
16
15
17
18
700 1200
INPUT P
1dB
vs. RF FREQUENCY
MAX9985 toc16
RF FREQUENCY (MHz)
INPUT P
1dB
(dBm)
900800 1000 1100
T
C
= +25°C
T
C
= -30°C
T
C
= +85°C
19
14
13
16
15
17
18
700 1200
INPUT P
1dB
vs. RF FREQUENCY
MAX9985 toc17
RF FREQUENCY (MHz)
INPUT P
1dB
(dBm)
900800 1000 1100
P
LO
= -3dBm, 0dBm, +3dBm
19
14
13
16
15
17
18
700 1200
INPUT P
1dB
vs. RF FREQUENCY
MAX9985 toc18
RF FREQUENCY (MHz)
INPUT P
1dB
(dBm)
900800 1000 1100
V
CC
= 5.0V
V
CC
= 4.75V
V
CC
= 5.25V