Rainbow Electronics MAX19995А - Manual (Page 6)

MAX19995A
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
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3.3V SUPPLY AC ELECTRICAL CHARACTERISTICS (continued)
( Typical Application Circuit, R1 = R4 = 909Ω, R2 = R5 = 1kΩ. Typical values are at V CC = 3.3V, P RF = -5dBm, P LO = 0dBm,
f RF = 1850MHz, f LO = 2200MHz, f IF = 350MHz, T C = +25°C, unless otherwise noted.) (Note 6)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
LO port selected, RF and IF terminated into
matched impedance
22
LO Input Return Loss
LO port unselected, RF and IF terminated
into matched impedance
16
dB
IF Output Return Loss
RF terminated into 50 Ω, LO driven by 50Ω
source, IF transformed to 50 Ω using
external components shown in the Typical
Application Circuit
11.5 dB
RF-to-IF Isolation 36 dB
LO Leakage at RF Port -40 dBm
2LO Leakage at RF Port -23 dBm
LO Leakage at IF Port -37 dBm
RFMAIN converted power measured at
IFDIV relative to IFMAIN, all unused ports
terminated to 50
Ω
48
Channel Isolation
RFDIV converted power measured at
IFMAIN relative to IFDIV, all unused ports
terminated to 50
Ω
48
dB
LO-to-LO Isolation
P LO1 = +3dBm, P LO2 = +3dBm,
f LO1 = 2200MHz, f LO2 = 2201MHz
47 dB
LO Switching Time 50% of LOSEL to IF settled within 2 degrees 50 ns
Note 5: Not production tested. Operation outside this range is possible, but with degraded performance of some parameters.
See the
Typical Operating Characteristics.
Note 6: All limits reflect losses of external components, including a 0.9dB loss at f IF = 350MHz due to the 4:1 transformer. Output
measurements were taken at IF outputs of the Typical Application Circuit.
Note 7: 100% production tested.
Note 8: 100% production tested for functionality.
Note 9: Maximum reliable continuous input power applied to the RF or IF port of this device is +12dBm from a 50Ω source.
Note 10: Not production tested.
Note 11: 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 Application Note 2021: Specifications and
Measurement of Local Oscillator Noise in Integrated Circuit Base Station Mixers.