Rainbow Electronics MAX19985A User Manual
Page 6
MAX19985A
Dual, SiGe, High-Linearity, 700MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
6
_______________________________________________________________________________________
Note 5:
Not production tested. Operation outside this range is possible, but with degraded performance of some parameters. See
the
Typical Operating Characteristics. Performance is optimized for RF frequencies of 824MHz to 915MHz.
Note 6:
All limits reflect losses of external components. Output measurements taken at IF outputs of
Typical Application Circuit.
Note 7:
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 the Application Note 2021:
Specifications and
Measurement of Local Oscillator Noise in Integrated Circuit Base Station Mixers.
Note 8:
Measured at IF port at IF frequency. LOSEL may be in any logic state.
Note 9:
Limited production testing.
Note 10: Guaranteed by production testing.
+3.3V SUPPLY AC ELECTRICAL CHARACTERISTICS (continued)
(
Typical Application Circuit, RF and LO ports are driven from 50
Ω sources. Typical values are at V
CC
= +3.3V, P
RF
= -5dBm,
P
LO
= 0dBm, f
RF
= 900MHz, f
LO
= 1100MHz, f
IF
= 200MHz, T
C
=+25°C, unless otherwise noted.) (Note 6)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
IF Terminal Output Impedance
Z
IF
Nominal differential impedance at the IC’s
IF output
200
Ω
IF Output Return Loss
RF terminated in 50
Ω; transformed to 50Ω
using external components shown in the
Typical Application Circuit
17
dB