Manual
MAX9995
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
_______________________________________________________________________________________ 3
AC ELECTRICAL CHARACTERISTICS (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, f
RF
=
1700MHz to 2200MHz, f
LO
= 1400MHz to 2000MHz, f
IF
= 200MHz, with f
RF
> f
LO
, T
C
= -40°C to +85°C. Typical values are at V
CC
=
5.0V, P
LO
= 0dBm, f
RF
= 1900MHz, f
LO
= 1700MHz, f
IF
= 200MHz, and T
C
= +25°C, unless otherwise noted.) (Notes 1, 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
f
RF
= 1710MHz to 1875MHz ±0.5 ±1
f
RF
= 1850MHz to 1910MHz ±0.5 ±1Gain Variation from Nominal
V
CC
= 5.0V,
T
C
= +25°C,
P
LO
= 0dBm,
P
RF
= -10dBm
(Note 3)
f
RF
= 2110MHz to 2170MHz ±0.5 ±1
dB
Gain Variation with Temperature ±0.75 dB
f
RF
= 1710MHz to 1875MHz 9.7
f
RF
= 1850MHz to 1910MHz 9.8
Noise Figure NF
No blockers
present
f
RF
= 2110MHz to 2170MHz 9.9
dB
Noise Figure (with Blocker)
8dBm blocker tone applied to RF port at
2000MHz, f
RF
= 1900MHz, f
LO
= 1710MHz,
P
LO
= -3dBm
22 dB
Input 1dB Compression Point P
1dB
(Note 3) 9.5 12.6 dBm
Input Third-Order Intercept Point IIP3 (Notes 3, 4) 23 25.6 dBm
P
RF
= -10dBm 66
2RF-2LO Spur Rejection 2 x 2
f
RF
= 1900MHz,
f
LO
= 1700MHz,
f
SPUR
= 1800MHz (Note 3)
P
RF
= -5dBm 61
dBc
P
RF
= -10dBm 70 88
3RF-3LO Spur Rejection 3 x 3
f
RF
= 1900MHz,
f
LO
= 1700MHz,
f
SPUR
= 1766.7MHz (Note 3)
P
RF
= -5dBm 60 78
dBc
Maximum LO Leakage at RF Port f
LO
= 1400MHz to 2000MHz -29 dBm
M axi m um 2LO Leakag e at RF P or tf
LO
= 1400MHz to 2000MHz -17 dBm
Maximum LO Leakage at IF Port f
LO
= 1400MHz to 2000MHz -25 dBm
Minimum RF to IF Isolation f
RF
= 1700MHz to 2200MHz, f
IF
= 200MHz 37 dB
LO1-LO2 Isolation P
LO1
= 0dBm, P
LO2
= 0dBm (Note 5) 40 50.5 dB
Minimum Channel-to-Channel
Isolation
P
RF
= -10dBm, RFMAIN (RFDIV)
power measured at IFDIV (IFMAIN),
relative to IFMAIN (IFDIV),
all unused parts terminated at 50Ω
40 44 dB
LO Switching Time 50% of LOSEL to IF settled to within 2° 50 ns
RF Return Loss 14 dB
LO port selected 18
LO Return Loss
LO port unselected 21
dB
IF Return Loss LO driven at 0dBm, RF terminated into 50Ω 21 dB
Note 1: Guaranteed by design and characterization.
Note 2: All limits reflect losses of external components. Output measurements taken at IF outputs of Typical Application Circuit.
Note 3: Production tested.
Note 4: Two tones 3MHz spacing, -5dBm per tone at RF port.
Note 5: Measured at IF port at IF frequency. f
LO1
and f
LO2
are offset by 1MHz.
Note 6: IF return loss can be optimized by external matching components.
Note 7: Operation outside this frequency band is possible but has not been characterized. See the Typical Operating Characteristics.