Datasheet
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MAX2042A
SiGe High-Linearity, 1600MHz to 3900MHz
Upconversion/Downconversion Mixer with LO Buffer
3.3V Supply, RF = 2000MHz to 2900MHz, HIGH-SIDE LO INJECTION AC ELECTRICAL
CHARACTERISTICS (DOWNCONVERTER OPERATION)
(Typical Application Circuit with tuning elements outlined in Table 1, RF and LO ports are driven from 50I sources, Typical values
are for T
C
= +25NC, V
CC
= 3.3V, P
RF
= 0dBm, P
LO
= 0dBm, f
RF
= 2600MHz, f
LO
= 2900MHz, f
IF
= 300MHz, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Small-Signal Conversion Loss L
C
(Note 8) 7.4 dB
Loss Variation vs. Frequency
DL
C
f
RF
= 2000MHz to 2900MHz, any 100MHz band
Q0.25
dB
Conversion Loss Temperature
Coefficient
TC
CL
T
C
= -40NC to +85NC
0.0079
dB/NC
Single Sideband Noise Figure NF
SSB
No blockers present 7.4 dB
Noise Figure Temperature
Coefficient
TC
NF
Single sideband, no blockers present,
T
C
= -40NC to +85NC
0.022
dB/NC
Input 1dB Compression Point IP
1dB
(Note 10) 19.7 dBm
Third-Order Input Intercept
Point
IIP3
f
RF1
=
2600MHz, f
RF2
=
2601MHz,
P
RF1
= P
RF2
= 0dBm
31 dBm
IIP3 Variation with T
C
f
RF1
=
2600MHz, f
RF2
=
2601MHz,
P
RF1
= P
RF2
= 0dBm, T
C
= -40NC to +85NC
Q0.1
dB
2LO - 2RF Spur Rejection 2 x 2
f
RF
= 2600MHz,
f
LO
= 2900MHz,
f
SPUR
= 2750MHz
P
RF
=
-10dBm 72
dBc
P
RF
=
0dBm 62
3LO - 3RF Spur Rejection 3 x 3
f
RF
= 2600MHz,
f
LO
= 2900MHz,
f
SPUR
= 2800MHz
P
RF
= -10dBm 85
dBc
P
RF
= 0dBm 65
RF Input Return Loss RL
RF
LO on and IF terminated into a matched
impedance
16 dB
LO Input Return Loss RL
LO
RF and IF terminated into a matched
impedance
32 dB
IF Output Impedance Z
IF
Nominal differential impedance at the IC’s IF
outputs
50
I
IF Return Loss RL
IF
RF terminated into 50I, LO driven by 50I
source, IF transformed to single-ended 50I
using external components shown in the Typical
Application Circuit
18 dB
RF-to-IF Isolation P
LO
= +3dBm 38 dB
LO Leakage at RF Port P
LO
= +3dBm -31.5 dBm
2LO Leakage at RF Port P
LO
= +3dBm -30 dBm
LO Leakage at IF Port P
LO
= +3dBm -31.4 dBm