MAX2042A
SiGe High-Linearity, 1600MHz to 3900MHz
Upconversion/Downconversion Mixer with LO Buffer
5.0V Supply, RF = 1650MHz to 2250MHz, HIGH-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 = 1850MHz, f LO = 2150MHz, f IF = 300MHz, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Small-Signal Conversion Loss
L C
f RF = 1650MHz to 1850MHz, any 100MHz band
7.5
Q 0.18
dB
Loss Variation vs. Frequency
D L C
f RF = 1850MHz to 2250MHz, any 100MHz band
f RF = 1650MHz to 1850MHz, any 200MHz band
Q 0.15
Q 0.36
dB
f RF = 1850MHz to 2250MHz, any 200MHz band
Q 0.3
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
TC CL
NF SSB
TC NF
IP 1dB
IIP3
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 = 1850MHz, f RF2 = 1851MHz,
P RF1 = P RF2 = 0dBm
f RF1 = 1850MHz, f RF2 = 1851MHz,
P RF1 = P RF2 = 0dBm, T C = -40 N C to +85 N C
0.0067
7
0.021
23
34.8
Q 0.5
dB/ N C
dB
dB/ N C
dBm
dBm
dB
2LO - 2RF Spur Rejection
3LO - 3RF Spur Rejection
2x2
3x3
f RF = 1850MHz,
f LO = 2150MHz,
f SPUR = 2000MHz
f RF = 1850MHz,
f LO = 2150MHz,
f SPUR = 2050MHz
P RF = -10dBm
P RF = 0dBm
P RF = -10dBm
P RF = 0dBm
83
73
94
74
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
16.4
25.2
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 Typical
17
dB
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
48.7
-28.8
-35.3
-20.8
dB
dBm
dBm
dBm
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