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SiGe, High-Linearity, 2300MHz to 4000MHz
Upconversion/Downconversion Mixer with LO Buffer
5.0V SUPPLY AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER MODE,
f RF = 3100MHz to 3900MHz, HIGH-SIDE LO INJECTION)
( Typical Application Circuit with tuning elements outlined in Table 1 , RF and LO ports are driven from 50 I sources. Typical values
are at V CC = 5.0V, P RF = 0dBm, P LO = 0dBm, f RF = 3500MHz, f LO = 3800MHz, f IF = 300MHz, T C = +25 N C, unless otherwise noted.)
(Note 6)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Conversion Loss
L C
7.8
dB
Loss Variation vs. Frequency
Conversion Loss Temperature
Coefficient
Third-Order Input Intercept
Point
Third-Order Input Intercept
Variation Over Temperature
D L C
TC CL
IIP3
f RF = 3100MHz to 3900MHz, over any
100MHz band
f RF = 3100MHz to 3900MHz,
T C = -40 N C to +85 N C
f RF1 - f RF2 = 1MHz, P RF = 0dBm per tone
f RF1 - f RF2 = 1MHz, P RF = 0dBm per tone,
T C = -40 N C to +85 N C
0.15
0.008
31.5
±0.2
dB
dB/ N C
dBm
dB
2LO - 2RF Spurious Rejection
3LO - 3RF Spurious Rejection
2x2
3x3
f SPUR = f LO - 150MHz
f SPUR = f LO - 100MHz
P RF = -10dBm
P RF = 0dBm
P RF = -10dBm
P RF = 0dBm
67
62
76.7
66.7
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
17.7
16.3
50
dB
dB
I
RF terminated into 50 I , LO driven by a
IF Output Return Loss
RL IF
50 I source, IF transformed to 50 I using
external components shown in the Typical
15
dB
Application Circuit
RF-to-IF Isolation
LO Leakage at RF Port
2LO Leakage at RF Port
LO Leakage at IF Port
f RF = 3100MHz to 3900MHz,
P LO = +3dBm
f LO = 3400MHz to 4200MHz,
P LO = +3dBm
f LO = 3400MHz to 4200MHz,
P LO = +3dBm
f LO = 3400MHz to 4200MHz,
P LO = +3dBm
41
-30
-21
-27.2
dB
dBm
dBm
dBm
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7
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