Datasheet
MAX9996
SiGe High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
_______________________________________________________________________________________ 3
Note 1: Guaranteed by design and characterization.
Note 2: All limits include external component losses. Output measurements taken at IF output of the Typical Application Circuit.
Note 3: Operation outside this range is possible, but with degraded performance of some parameters.
Note 4: Compression point characterized. It is advisable not to operate continuously the mixer RF input above +12dBm.
Note 5: Measured with external LO source noise filtered so the noise floor is -174dBm/Hz. This specification reflects the effects of all
SNR degradations in the mixer, including the LO noise as defined in Maxim Application Note 2021.
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX9996 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
= -5dBm, f
RF
= 1700MHz to 2200MHz, f
LO
= 1900MHz to 2400MHz, f
IF
= 200MHz, f
LO
> f
RF
, T
C
= -40°C to +85°C,
unless otherwise noted. Typical values are at V
CC
= +5V, P
RF
= -5dBm, P
LO
= 0dBm, f
RF
= 1900MHz, f
LO
= 2100MHz, f
IF
= 200MHz,
T
C
= +25°C, unless otherwise noted.) (Notes 1, 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Noise Figure NF Single sideband 9.7 dB
Noise Figure Under-Blocking
P
R F
= 5d Bm , f
R F
= 2000M H z,
f
L O
= 2190M H z, f
B LOC K
= 2100M H z ( N ote 5)
19 dB
LO Drive -3 +3 dBm
P
RF
= -10dBm 72
2 x 2 2LO-2RF
P
RF
= -5dBm 67
P
RF
= -10dBm 87
Spurious Response at IF
3 x 3 3LO-3RF
P
RF
= -5dBm 77
dBc
LO2 selected, 1900MHz < f
LO
< 2100MHz 49
LO1 to LO2 Isolation
LO1 selected, 1900MHz < f
LO
< 2100MHz 43
dB
Maximum LO Leakage at RF Port P
LO
= +3dBm -20 dBm
Maximum LO Leakage at IF Port P
LO
= +3dBm -30 dBm
Minimum RF-to-IF Isolation 40 dB
LO Switching Time 50% of LOSEL to IF settled to within 2° 50 ns
RF Port Return Loss 15 dB
LO1/2 port selected,
LO2/1 and IF terminated
16
LO Port Return Loss
LO1/2 port unselected,
LO2/1 and IF terminated
26
dB
IF Port Return Loss
LO driven at 0dBm, RF terminated into 50Ω,
differential 200Ω
20 dB