Datasheet

MAX2031
High-Linearity, 650MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
12 ______________________________________________________________________________________
Typical Operating Characteristics (continued)
( Typical Application Circuit, optimized for the 700MHz band (see Table 1), C1 = 7pF, C5 = 3.3pF, L1 and C4 are not used, V
CC
=
5V, P
LO
= 0dBm, P
RF
= 0dBm, f
LO
> f
RF
, f
IF
= 140MHz, T
C
= +25°C, unless otherwise noted.)
RF PORT RETURN LOSS
vs. RF FREQUENCY
MAX2031 toc64
RF FREQUENCY (MHz)
RF PORT RETURN LOSS (dB)
900800700600
20
15
10
5
0
25
500 1000
P
LO
= -3dBm, 0dBm, +3dBm
IF PORT RETURN LOSS
vs. IF FREQUENCY
MAX2031 toc65
IF FREQUENCY (MHz)
IF PORT RETURN LOSS (dB)
300250200150100
20
15
10
5
0
25
50 350
V
CC
= 4.75V, 5.0V, 5.25V
f
LO
= 890MHz
LO SELECTED RETURN LOSS
vs. LO FREQUENCY
MAX2031 toc66
LO FREQUENCY (MHz)
LO SELECTED RETURN LOSS (dB)
1050900750
30
20
10
0
40
600 1200
P
LO
= 0dBm
P
LO
= +3dBm
P
LO
= -3dBm
LO UNSELECTED RETURN LOSS
vs. LO FREQUENCY
MAX2031 toc67
LO FREQENCY (MHz)
LO UNSELECTED RETURN LOSS (dB)
1050900750
30
20
10
0
40
600 1200
P
LO
= -3dBm, 0dBm, +3dBm
SUPPLY CURRENT
vs. TEMPERATURE (T
C
)
MAX2031 toc68
TEMPERATURE (NC)
SUPPLY CURRENT (mA)
603510-15
70
80
90
100
60
-40 85
V
CC
= 5.25V
V
CC
= 5.0V
V
CC
= 4.75V
Downconverter Curves