MAX2042A
SiGe High-Linearity, 1600MHz to 3900MHz
Upconversion/Downconversion Mixer with LO Buffer
5.0V Supply, RF = 3100MHz to 3900MHz, LOW-SIDE LO INJECTION AC ELECTRICAL
CHARACTERISTICS (DOWNCONVERTER OPERATION)
( Typical Application Circuit with tuning elements outlined in Table 1 . Typical values are for T C = +25 N C, V CC = 5.0V, P RF = 0dBm,
P LO = 0dBm, f RF = 3500MHz, f LO = 3200MHz, f IF = 300MHz, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Small-Signal Conversion Loss
L C
8.2
dB
Loss Variation vs. Frequency
Conversion Loss Temperature
Coefficient
Single Sideband Noise Figure
Noise Figure Temperature
Coefficient
Input 1dB Compression Point
Third-Order Input Intercept
Point
IIP3 Variation with T C
D L C
TC CL
NF SSB
TC NF
IP 1dB
IIP3
f RF = 3450MHz to 3750MHz, any 100MHz band
f RF = 3450MHz to 3750MHz, any 200MHz band
T C = -40 N C to +85 N C
No blockers present
Single sideband, no blockers present,
T C = -40 N C to +85 N C
(Note 10)
f RF1 - f RF2 = 1MHz, P RF1 = P RF2 = 0dBm
f RF1 - f RF2 = 1MHz, P RF1 = P RF2 = 0dBm,
T C = -40 N C to +85 N C
Q 0.085
Q 0.17
0.0091
7.6
0.025
20.6
31
Q 0.5
dB
dB
dB/ N C
dB
dB/ N C
dBm
dBm
dB
2RF - 2LO Spur Rejection
3RF - 3LO Spur Rejection
2x2
3x3
f RF = 3500MHz,
f LO = 3200MHz,
f SPUR = 3350MHz
f RF = 3500MHz,
f LO = 3200MHz,
f SPUR = 3300MHz
P RF = -10dBm
P RF = 0dBm
P RF = -10dBm
P RF = 0dBm
71
61
87
67
dBc
dBc
RF Input Return Loss
LO Input Return Loss
IF Output Impedance
RL RF
RL LO
Z IF
LO on and IF terminated into a matched
impedance
RF and IF terminated into a matched
impedance
Nominal differential impedance at the
IC’s IF outputs
15
20
50
dB
dB
I
RF terminated into 50 I , LO driven by 50 I
IF Return Loss
RL IF
source, IF transformed to single-ended 50 I
using external components shown in the
16.5
dB
Typical Application Circuit
RF-to-IF Isolation
LO Leakage at RF Port
2LO Leakage at RF Port
LO Leakage at IF Port
P LO = +3dBm
P LO = +3dBm
P LO = +3dBm
P LO = +3dBm
35
-29.5
-23
-31.5
dB
dBm
dBm
dBm
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