Datasheet
MAX2031
High-Linearity, 650MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
_______________________________________________________________________________________ 3
AC ELECTRICAL CHARACTERISTICS (800MHz/900MHz CELLULAR BAND DOWNCON-
VERTER OPERATION)
(
Typical Application Circuit,
optimized for the 800MHz/900MHz cellular band (see Table 1), C1 = 82pF, C5 = 2pF, L1 and C4 not
used, V
CC
= 4.75V to 5.25V, RF and LO ports driven from 50Ω sources, P
LO
= -3dBm to +3dBm, P
RF
= 0dBm, f
RF
= 815MHz to
1000MHz, f
LO
= 960MHz to 1180MHz, f
IF
= 160MHz, f
LO
> f
RF
, T
C
= -40°C to +85°C, unless otherwise noted. Typical values are at
V
CC
= 5V, P
RF
= 0dBm, P
LO
= 0dBm, f
RF
= 910MHz, f
LO
= 1070MHz, f
IF
= 160MHz, T
C
= +25°C, unless otherwise noted.) (Note 8)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Conversion Loss Lc 7.0 dB
Conversion Loss Flatness
Flatness over any one of three frequency
bands (f
IF
= 160MHz):
f
RF
= 827MHz to 849MHz
f
RF
= 869MHz to 894MHz
f
RF
= 880MHz to 915MHz
±0.18 dB
T
C
= +25°C to -40°C -0.3
Conversion Loss Variation Over
Temperature
T
C
= +25°C to +85°C 0.2
dB
Input Compression Point P
1dB
(Note 9) 27 dBm
Input Third-Order Intercept Point IIP3
f
RF1
= 910MHz, f
RF2
= 911MHz,
P
RF
= 0dBm/tone, f
LO
= 1070MHz,
P
LO
= 0dBm, T
C
= +25°C (Note 10)
32 36 dBm
T
C
= +25°C to -40°C 0.3
Input IP3 Variation Over
Temperature
IIP3
T
C
= +25°C to +85°C -0.3
dB
2 x 2 2LO - 2RF 72
Spurious Response at IF
3 x 3 3LO - 3RF 79
dBc
Noise Figure NF Single sideband 7.0 dB
P
BLOCKER
= +8dBm 15
Noise Figure Under Blocking
(Note 11)
P
BLOCKER
= +12dBm 19
dB
LO2 selected, P
LO
= +3dBm, T
C
= +25°C 42 51
LO1-to-LO2 Isolation (Note 10)
LO1 selected, P
LO
= +3dBm, T
C
= +25°C 42 49
dB
Maximum LO Leakage at RF Port P
LO
= +3dBm -27 dBm
Maximum LO Leakage at IF Port P
LO
= +3dBm -35 dBm
LO Switching Time 50% of LOSEL to IF, settled within 2 degrees 50 ns
Minimum RF-to-IF Isolation 45 dB
RF Port Return Loss 17 dB
LO1/LO2 port selected, LO2/LO1, RF, and IF
terminated into 50Ω
28
LO Port Return Loss
LO1/LO2 port unselected, LO2/LO1, RF, and
IF terminated into 50Ω
30
dB
IF Port Return Loss LO driven at 0dBm, RF terminated into 50Ω 17 dB