Manual

MAX9995
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
_______________________________________________________________________________________ 7
39
40
41
42
43
44
45
38
RF TO IF ISOLATION vs. RF FREQUENCY
ISOLATION (dB)
MAX9995 toc28
FREQUENCY (MHz)
21002000190018001700 2200
T
C
= +85
°
C
T
C
= -20
°
C
T
C
= +25
°
C
37
39
38
40
41
43
42
45
44
46
36
RF TO IF ISOLATION vs. RF FREQUENCY
ISOLATION (dB)
MAX9995 toc29
FREQUENCY (MHz)
21002000190018001700 2200
P
LO
= -3dBm TO +3dBm
40.0
40.5
41.0
41.5
42.0
42.5
43.0
39.5
RF TO IF ISOLATION vs. RF FREQUENCY
ISOLATION (dB)
MAX9995 toc30
FREQUENCY (MHz)
21002000190018001700 2200
V
CC
= 5.25V
V
CC
= 4.75V
V
CC
= 5.0V
NOISE FIGURE vs. RF FREQUENCY
MAX9995 toc31
FREQUENCY (MHz)
NOISE FIGURE (dB)
210020001800 1900
7
8
9
10
12
11
13
14
6
1700 2200
T
C
= +85
°
C
T
C
= +25
°
C
T
C
= -20
°
C
RETURN LOSS (dB)
25
20
15
10
5
0
30
RF RETURN LOSS vs. RF FREQUENCY
MAX9995 toc34
FREQUENCY (MHz)
210020001800 19001700 2200
P
LO
= -3dBm TO +3dBm
9.7
9.8
9.9
10.0
10.1
10.2
9.6
NOISE FIGURE vs. RF FREQUENCY
MAX9995 toc32
FREQUENCY (MHz)
NOISE FIGURE (dB)
210020001800 19001700 2200
P
LO
= -3dBm
P
LO
= 0dBm
P
LO
= +3dBm
9.6
9.7
9.8
9.9
10.0
10.1
10.2
10.3
10.4
10.5
9.5
NOISE FIGURE vs. RF FREQUENCY
MAX9995 toc33
FREQUENCY (MHz)
NOISE FIGURE (dB)
210020001800 19001700 2200
V
CC
= 5.25V
V
CC
= 5.0V
V
CC
= 4.75V
IF RETURN LOSS vs. IF FREQUENCY
MAX9995 toc35
FREQUENCY (MHz)
RETURN LOSS (dB)
320280200 240120 16080
40
35
30
25
20
15
10
5
0
45
40 360
LO RETURN LOSS vs. LO FREQUENCY
(LO INPUT SELECTED)
MAX9995 toc36
FREQUENCY (MHz)
RETURN LOSS (dB)
19001800170016001500
20
15
10
5
0
25
1400 2000
P
LO
= +3dBm
P
LO
= 0dBm
P
LO
= -3dBm
Typical Operating Characteristics (continued)
(Typical Application Circuit, V
CC
= 5.0V, P
RF
= -5dBm, P
LO
= 0dBm, LO is low-side injected for a 200MHz IF, T
C
= +25°C.)