Datasheet
MAX2031
High-Linearity, 650MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
_______________________________________________________________________________________
7
60
55
50
45
40
850 1050950 1150 1250
LO SWITCH ISOLATION
vs. LO FREQUENCY
MAX2031 toc19
LO FREQUENCY (MHz)
LO SWITCH ISOLATION (dB)
T
C
= -40°C, -25°C
T
C
= +85°C
T
C
= +25°C
60
55
50
45
40
850 1050950 1150 1250
LO SWITCH ISOLATION
vs. LO FREQUENCY
MAX2031 toc20
LO FREQUENCY (MHz)
LO SWITCH ISOLATION (dB)
P
LO
= -3dBm, 0dBm, +3dBm
60
55
50
45
40
850 1050950 1150 1250
LO SWITCH ISOLATION
vs. LO FREQUENCY
MAX2031 toc21
LO FREQUENCY (MHz)
LO SWITCH ISOLATION (dB)
V
CC
= 4.75V, 5.0V, 5.25V
-20
-30
-40
-50
-60
960 10601010 1110 1160
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX2031 toc22
LO FREQUENCY (MHz)
LO LEAKAGE (dBm)
T
C
= -40°C, -25°C
T
C
= +25°C
T
C
= +85°C
T
C
= -40°C, -25°C
T
C
= +25°C
T
C
= +85°C
-20
-30
-40
-50
-60
960 10601010 1110 1160
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX2031 toc23
LO FREQUENCY (MHz)
LO LEAKAGE (dBm)
P
LO
= -3dBm, 0dBm, +3dBm
-20
-30
-40
-50
-60
960 10601010 1110 1160
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY
MAX2031 toc24
LO FREQUENCY (MHz)
LO LEAKAGE (dBm)
V
CC
= 5.0V
V
CC
= 4.75V
V
CC
= 5.25V
-45
-35
-40
-25
-30
-20
-15
850 1050950 1150 1250
LO LEAKAGE AT RF PORT
vs. LO FREQUENCY
MAX2031 toc25
LO FREQUENCY (MHz)
LO LEAKAGE AT RF PORT (dBm)
T
C
= -40°C, -25°C
T
C
= +85°C
T
C
= +25°C
-45
-35
-40
-25
-30
-20
-15
850 1050950 1150 1250
LO LEAKAGE AT RF PORT
vs. LO FREQUENCY
MAX2031 toc26
LO FREQUENCY (MHz)
LO LEAKAGE AT RF PORT (dBm)
P
LO
= -3dBm, 0dBm, +3dBm
-45
-35
-40
-25
-30
-20
-15
850 1050950 1150 1250
LO LEAKAGE AT RF PORT
vs. LO FREQUENCY
MAX2031 toc27
LO FREQUENCY (MHz)
LO LEAKAGE AT RF PORT (dBm)
V
CC
= 5.0V
V
CC
= 4.75V
V
CC
= 5.25V
Downconverter Curves
Typical Operating Characteristics (continued)
(
Typical Application Circuit
, optimized for the 800MHz/900MHz cellular band (see Table 1), C1 = 82pF, C5 = 2pF, L1 and C4 not used,
V
CC
= 5.0V, P
LO
= 0dBm, P
RF
= 0dBm, f
LO
> f
RF
, f
IF
= 160MHz, T
C
= +25°C, unless otherwise noted.)