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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 50 I sources, Typical values
are for T C = +25 N C, V CC = 3.3V, P RF = 0dBm, P LO = 0dBm, f RF = 2600MHz, f LO = 2900MHz, f IF = 300MHz, unless otherwise noted.)
PARAMETER
Small-Signal Conversion Loss
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
SYMBOL
L C
D L C
TC CL
NF SSB
TC NF
IP 1dB
IIP3
CONDITIONS
(Note 8)
f RF = 2000MHz to 2900MHz, any 100MHz 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 = 2600MHz, f RF2 = 2601MHz,
P RF1 = P RF2 = 0dBm
MIN
TYP
7.4
Q 0.25
0.0079
7.4
0.022
19.7
31
MAX
UNITS
dB
dB
dB/ N C
dB
dB/ N C
dBm
dBm
IIP3 Variation with T C
f RF1 = 2600MHz, f RF2 = 2601MHz,
P RF1 = P RF2 = 0dBm, T C = -40 N C to +85 N C
Q 0.1
dB
2LO - 2RF Spur Rejection
3LO - 3RF Spur Rejection
2x2
3x3
f RF = 2600MHz,
f LO = 2900MHz,
f SPUR = 2750MHz
f RF = 2600MHz,
f LO = 2900MHz,
f SPUR = 2800MHz
P RF = -10dBm
P RF = 0dBm
P RF = -10dBm
P RF = 0dBm
72
62
85
65
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
32
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
18
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
38
-31.5
-30
-31.4
dB
dBm
dBm
dBm
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