Datasheet
MAX9986
SiGe High-Linearity, 815MHz to 995MHz
Downconversion Mixer with LO Buffer/Switch
_______________________________________________________________________________________ 3
Note 1: All limits include external component losses. Output measurements taken at IF output of the Typical Application Circuit.
Note 2: Operation outside this range is possible, but with degraded performance of some parameters.
Note 3: Compression point characterized. It is advisable not to operate continuously the mixer RF input above +12dBm.
Note 4: 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.
Note 5: Guaranteed by design and characterization.
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX9986 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
= 815MHz to 995MHz, 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
= -5dBm, P
LO
= 0dBm, f
RF
= 910MHz, f
LO
= 1070MHz, f
IF
= 160MHz, T
C
=
+25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Noise Figure NF Single sideband, f
IF
= 190MHz 9.3 dB
P
B LOC K E R
=
+ 8d Bm
19
Noise Figure Under-Blocking
f
R F
= 900M H z ( no si g nal )
f
L O
= 1090M H z
f
B LOC K E R
= 990M H z
f
I F
= 190M H z
( N ote 4)
P
B LOC K E R
=
+ 11d Bm
24
dB
P
B LOC K E R
=
+ 8d Bm
0.3
Small-Signal Compression
Under-Blocking Condition
P
FUNDAMENTAL
= -5dBm
f
F U N D A M E N TA L
= 910M H z
f
B LOC K E R
= 911M H z
P
B LOC K E R
=
+ 11d Bm
2
dB
LO Drive -3 +3
dBm
P
RF
= -10dBm 67
2 x 2 2LO-2RF
P
RF
= -5dBm 62
P
RF
= -10dBm 87
Spurious Response at IF
3 x 3 3LO-3RF
P
RF
= -5dBm 77
dBc
LO2 selected 42 49
LO1 to LO2 Isolation
P
LO
= +3dBm
T
C
= +25°C (Note 5)
LO1 selected 42 50
dB
LO Leakage at RF Port P
LO
= +3dBm -47
dBm
LO Leakage at IF Port P
LO
= +3dBm -30
dBm
RF-to-IF Isolation 46 dB
LO Switching Time 50% of LOSEL to IF settled to within 2° 50 ns
RF Port Return Loss 20 dB
LO1/2 port selected,
LO2/1 and IF terminated
27
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
22 dB