Datasheet
MAX2051
SiGe, High-Linearity, 850MHz to 1550MHz
Up/Downconversion Mixer with LO Buffer
_______________________________________________________________________________________ 5
AC ELECTRICAL CHARACTERISTICS (UPCONVERTER OPERATION)
(
Typical Application Circuit
, RF and LO ports are driven from 50Ω sources, f
RF
< f
LO
. Typical values are at V
CC
= +5.0V, P
IF
= 0dBm,
P
LO
= 0dBm, f
RF
= 1250MHz, f
LO
= 1600MHz, f
IF
= 350MHz, T
C
= +25°C, unless otherwise noted.) (Note 7)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Conversion Power Loss L
C
7.5 dB
Third-Order Input Intercept
Point
IIP3 f
IF1
= 350M H z, f
IF2
= 351M H z, P
IF
= 0d Bm /tone 33.4 dBm
LO-2IF Spurious Rejection 61 dBc
LO+2IF Spurious Rejection 63.3 dBc
LO-3IF Spurious Rejection 78 dBc
LO+3IF Spurious Rejection 79 dBc
LO Leakage at RF Port P
LO
= +3dBm -35.7 dBm
IF Leakage at RF Port -52 dBm
RF Return Loss 12.3 dB
IF Input Return Loss f
LO
= 1200MHz 18 dB
Note 5: Operation outside this range is possible, but with degraded performance of some parameters. See the
Typical Operating
Characteristics
section.
Note 6: Not production tested.
Note 7: All values reflect losses of external components, including a 0.6dB loss at f
IF
= 350MHz and a 0.8dB loss at
f
IF
= 1000MHz due to the 1:1 transformer. Output measurements were taken at IF outputs of the
Typical Application Circuit
.
Note 8: Guaranteed by design and characterization.
Note 9: 100% production tested for functionality.
Note 10: Additional improvements (of up to 4dB to 6dB) in spurious responses can be made by increasing the LO drive to +6dBm.
Note 11: The LO return loss can be improved by tuning C9 to offset any parasitics within the specific application circuit. Typical
range of C9 is 10pF to 50pF.