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Dual, SiGe, High-Linearity, 700MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
+5.0V SUPPLY AC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuit, V CC = +4.75V to +5.25V, RF and LO ports are driven from 50 Ω sources, P LO = -3dBm to +3dBm,
P RF = -5dBm, f RF = 700MHz to 1000MHz, f LO = 900MHz to 1200MHz, f IF = 200MHz, f RF < f LO , T C = -40°C to +85°C. Typical values
are at V CC = +5.0V, P RF = -5dBm, P LO = 0dBm, f RF =900MHz, f LO = 1100MHz, f IF = 200MHz, T C =+25°C, all parameters are guaran-
teed by design and characterization, unless otherwise noted.) (Note 6)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
f RF = 800MHz,
P RF = -10dBm
-63
-76
2LO-2RF Spur Rejection
2x2
f LO = 1000MHz,
f SPUR = 900MHz
P RF = -5dBm
(Note 9)
-58
-71
dBc
f RF = 800MHz,
P RF = -10dBm
-65
-78
3LO-3RF Spur Rejection
3x3
f LO = 1000MHz,
f SPUR = 933.3MHz
P RF = -5dBm
(Note 9)
-60
-73
dBc
LO Leakage at RF Port
2LO Leakage at RF Port
3LO Leakage at RF Port
4LO Leakage at RF Port
LO Leakage at IF Port
f LO = 900MHz to 1300MHz, P LO = +3dBm
(Note 10)
f LO = 900MHz to 1200MHz, P LO = +3dBm
(Note 10)
f LO = 1200MHz to 1300MHz, P LO = +3dBm
(Note 10)
f LO = 900MHz to 1300MHz, P LO = +3dBm
(Note 10)
f LO = 900MHz to 1300MHz, P LO = +3dBm
(Note 9)
f LO = 900MHz to 1300MHz, P LO = +3dBm
(Note 10)
-40
-38
-35
-50
-25
-35
-20
-25
-22
-28
-15
-23
dBm
dBm
dBm
dBm
dBm
RF-to-IF Isolation
f RF = 824MHz to 915MHz (Note 10)
30
38
dB
P LO1 = +3dBm, P LO2 = +3dBm,
LO-to-LO Isolation
f LO1 = 900MHz, f LO2 = 901MHz,
40
46
dB
P RF = -5dBm (Notes 8, 10)
RFMAIN (RFDIV) converted power measured
Channel-to-Channel Isolation
at IFDIV (IFMAIN), relative to IFMAIN (IFDIV),
40
48
dB
all unused ports terminated to 50 Ω (Note 9)
LO Switching Time
RF Input Impedance
RF Input Return Loss
LO Input Impedance
Z RF
Z LO
50% of LOSEL to IF settled within 2 degrees
LO on and IF terminated into matched
impedance
50
50
20
50
1000
ns
Ω
dB
Ω
RF and IF terminated into matched
impedance, LO port selected
20
LO Input Return Loss
RF and IF terminated into matched
impedance, LO port unselected
20
dB
IF Terminal Output Impedance
Z IF
Nominal differential impedance at the IC’s
IF output
200
Ω
RF terminated in 50 Ω ; transformed to 50 Ω
IF Return Loss
using external components shown in the
18
dB
Typical Application Circuit
4
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