Dual, SiGe, High-Linearity, 1200MHz to 1700MHz
Downconversion Mixer with LO Buffer/Switch
5.0V SUPPLY, LOW-SIDE INJECTION AC ELECTRICAL CHARACTERISTICS (continued)
( Typical Application Circuit (see Table 1). R1 = R4 = 681 I , R2 = R5 = 1.82k I , V CC = 4.75V to 5.25V, RF and LO ports are driven from
50 I sources, P LO = -6dBm to +3dBm, P RF = -5dBm, f RF = 1200MHz to 1700MHz, f LO = 1060MHz to 1560MHz, f IF = 140MHz, f RF > f LO ,
T C = -40 N C to +85 N C. Typical values are at V CC = +5.0V, P RF = -5dBm, P LO = 0dBm, f RF = 1450MHz, f LO = 1310MHz, f IF = 140MHz,
TC = +25 N C. All parameters are guaranteed by design and characterization, unless otherwise noted.) (Note 7)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LO Leakage at IF Port
(Note 5)
-18
dBm
RFMAIN converted power measured at
IFDIV relative to IFMAIN, all unused ports
43
47
Channel Isolation (Note 5)
terminated to 50 I
RFDIV converted power measured at
dB
IFMAIN relative to IFDIV, all unused ports
terminated to 50 I
43
47
LO-to-LO Isolation
LO Switching Time
P LO1 = +3dBm, P LO2 = +3dBm,
f LO1 = 1310MHz, f LO2 = 1311MHz (Note 5)
50% of LOSEL to IF settle d within 2 degrees
47
57
50
dB
ns
3.3V SUPPLY, LOW SIDE INJECTION AC ELECTRICAL CHARACTERISTICS
( Typical Application Circuit (see Table 1). R1 = R4 = 681 I , R2 = R5 = 1.43k I . Typical values are at V CC = 3.3V, P RF = -5dBm, P LO = 0dBm,
f RF = 1450MHz, f LO = 1310MHz, f IF = 140MHz, T C = +25 N C, unless otherwise noted.) (Note 7)
PARAMETER
Conversion Gain
Conversion Gain Flatness
Gain Variation Over Temperature
Input Compression Point
Input Third-Order Intercept Point
Input Third-Order Intercept Point
Variation Over Temperature
Noise Figure
Noise Figure Temperature
Coefficient
2RF - 2LO Spur Rejection
3RF - 3LO Spur Rejection
SYMBOL
G C
D G C
TC CG
IP 1dB
IIP3
TC IIP3
NF SSB
TC NF
2x2
3x3
CONDITIONS
(Note 5)
f RF = 1427MHz to 1463MHz
T C = -40 N C to +85 N C
(Note 8)
f RF1 - f RF2 = 1MHz
f RF1 - f RF2 = 1MHz, P RF = -5dBm per tone,
T C = -40 N C to +85 N C
Single sideband, no blockers present
Single sideband, no blockers present,
T C = -40 N C to +85 N C
P RF = -10dBm
P RF = -5dBm
P RF = -10dBm
P RF = -5dBm
MIN
TYP
6.2
Q 0.05
-0.009
12.8
24.4
Q 0.8
9.8
0.016
73
68
80
70
MAX
UNITS
dB
dB
dB/ N C
dBm
dBm
dBm
dB
dB/ N C
dBc
dBc
RF Input Return Loss
LO Input Return Loss
LO and IF terminated into matched
impedance, LO on
LO port selected, RF and IF terminated into
matched impedance
LO port unselected, RF and IF terminated
into matched impedance
21
24
27
dB
dB
5
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