Datasheet

MAX2051
SiGe, High-Linearity, 850MHz to 1550MHz
Up/Downconversion Mixer with LO Buffer
4 _______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION) (continued)
( Typical Application Circuit , V
CC
= +4.75V to +5.25V, RF and LO ports are driven from 50Ω sources, P
LO
= -3dBm to +3dBm,
P
RF
= 0dBm, f
RF
= 1000MHz to 1250MHz, f
LO
= 1200MHz to 2250MHz, f
IF
= 50MHz to 1000MHz, f
RF
< f
LO
, T
C
= -40°C to +85°C.
Typical values are at V
CC
= +5.0V, P
RF
= 0dBm, P
LO
= 0dBm, f
RF
=1200MHz, f
LO
= 1700MHz, f
IF
= 500MHz, T
C
= +25°C, unless
otherwise noted.) (Note 7)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
P
RF
=
-14dBm
87.5 101
P
RF
=
-10dBm
79.5 93
3LO-3RF Spurious Rejection 3 x 3
Single tone, f
RF
= 1200MHz,
50MHz < f
IF
< 1000MHz,
1250MHz < f
LO
< 2200MHz
(Notes 8, 9)
P
RF
= 0dBm 59.5 73
dBc
LO Leakage at RF Port P
LO
= +3dBm (Notes 6, 8) -33.5 -27.5 dBm
LO Leakage at IF Port P
LO
= +3dBm (Notes 8, 9) -26.3 -22.9 dBm
RF-to-IF Isolation f
R F
= 1200M H z, P
L O
= + 3d Bm ( N otes 8, 9) 24 51 dB
RF Input Impedance Z
RF
50 Ω
RF Input Return Loss
LO on and IF terminated with a matched
impedance
12 dB
LO Input Impedance Z
LO
50 Ω
LO Input Return Loss
RF and IF terminated with a matched
impedance (Note 11)
11 dB
IF Output Impedance Z
IF
Nominal differential impedance at the IC’s
IF outputs
50 Ω
IF Output Return Loss
RF ter m i nated i nto 50Ω , LO d r i ven b y 50Ω
sour ce, IF tr ansfor m ed to 50Ω si ng l e- end ed
usi ng exter nal com p onents show n i n the
Typ i cal Ap p l i cati on C i r cui t
15 dB