Rainbow Electronics MAX19996 User Manual
Page 5
MAX19996
SiGe High-Linearity, 2000MHz to 3000MHz
Downconversion Mixer with LO Buffer
_______________________________________________________________________________________
5
Note 5:
100% production tested for functional performance.
Note 6:
All limits reflect losses of external components, including a 0.8dB loss at f
IF
= 300MHz due to the 4:1 impedance trans-
former. Output measurements were taken at IF outputs of the
Typical Application Circuit.
Note 7:
Not production tested. Operation outside this range is possible, but with degraded performance of some parameters. See
the
Typical Operating Characteristics.
Note 8:
Maximum reliable continuous input power applied to the RF or IF port of this device is +12dBm from a 50Ω source.
Note 9:
Measured with external LO source noise filtered so that 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 Application Note 2021:
Specifications
and Measurement of Local Oscillator Noise in Integrated Circuit Base Station Mixers.
+3.3V SUPPLY AC ELECTRICAL CHARACTERISTICS (continued)
(
Typical Application Circuit, RF and LO ports are driven from 50Ω sources, Typical values are at V
CC
= +3.3V, P
RF
= -5dBm,
P
LO
= 0dBm, f
RF
= 2500MHz, f
LO
= 2200MHz, f
IF
= 300MHz, T
C
= +25°C, unless otherwise noted.) (Note 6)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
P
RF
= -10dBm
67.9
3RF-3LO Spur Rejection
3 x 3
P
RF
= -5dBm
57.9
dBc
RF Input Return Loss
LO on and IF terminated into a matched
impedance
16
dB
LO Input Return Loss
RF and IF terminated into a matched
impedance
16.7
dB
IF Output Impedance
Z
IF
Nominal differential impedance at the IC’s
IF outputs
200
Ω
f
IF
= 450MHz,
L1 = L2 = 120nH
23
f
IF
= 350MHz,
L1 = L2 = 270nH
23
IF Output Return Loss
RF ter m i nated i nto 50
Ω ,
LO d r i ven b y 50
Ω sour ce,
IF tr ansfor m ed to 50
Ω
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. S ee the IF P or t
Retur n Loss vs. IF
Fr eq uency g r ap h i n the
Typ i cal Op er ati ng
C har acter i sti cs for
p er for m ance vs. i nd uctor
val ues.
f
IF
= 300MHz,
L1 = L2 = 470nH
23
dB
Minimum RF-to-IF Isolation
f
RF
= 2300MHz to 2700MHz, P
LO
= +3dBm
33
dB
Maximum LO Leakage at RF Port
f
LO
= 1900MHz to 2500MHz, P
LO
= +3dBm
-26.6
dBm
M axi m um 2LO Leakag e at RF P or t
f
LO
= 1900MHz to 2500MHz, P
LO
= +3dBm
-28.8
dBm
Maximum LO Leakage at IF Port
f
LO
= 1900MHz to 2500MHz, P
LO
= +3dBm
-21.9
dBm