
MAX9995
Dual, SiGe, High-Linearity, 1700MHz to 2700MHz
Downconversion Mixer with LO Buffer/Switch
AC ELECTRICAL CHARACTERISTICS—f RF = 1700MHz TO 2200MHz
(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, f RF =
1700MHz to 2200MHz, f LO = 1400MHz to 2000MHz, f IF = 200MHz, with f RF > f LO , T C = -40°C to +85°C. Typical values are at V CC =
5.0V, P LO = 0dBm, f RF = 1900MHz, f LO = 1700MHz, f IF = 200MHz, and T C = +25°C, unless otherwise noted.) (Notes 6, 7)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
f RF = 1710MHz to 1875MHz
6
Conversion Gain
G C
f RF = 1850MHz to 1910MHz
T C = +100°C
6.2
4.6
dB
f RF = 2110MHz to 2170MHz
6.1
V CC = 5.0V,
f RF = 1710MHz to 1875MHz
± 0.5
± 1
Gain Variation from Nominal
T C = +25°C,
P LO = 0dBm,
P RF = -10dBm
f RF = 1850MHz to 1910MHz
f RF = 2110MHz to 2170MHz
± 0.5
± 0.5
± 1
± 1
dB
Gain Variation with Temperature
f RF = 1710MHz to 1875MHz
± 0.75
9.7
dB
Noise Figure
NF
No blockers
present
f RF = 1850MHz to 1910MHz
9.8
dB
f RF = 2110MHz to 2170MHz
8dBm blocker tone applied to RF port at
9.9
Noise Figure (with Blocker)
2000MHz, f RF = 1900MHz, f LO = 1710MHz,
22
dB
P LO = -3dBm
Input 1dB Compression Point
Input Third-Order Intercept Point
P 1dB
IIP3
(Note 8)
(Notes 8, 9)
T C = +100°C, Note 9
9.5
23
12.6
25.6
26.1
dBm
dBm
P RF = -10dBm
66
2RF - 2LO Spur Rejection
2x2
f RF = 1900MHz,
f LO = 1700MHz,
f SPUR = 1800MHz
P RF = -10dBm, T C = +100°C
P RF = -5dBm
73.3
61
dBc
P RF =-5dBm, T C = +100°C
68.3
P RF = -10dBm
70
88
3RF - 3LO Spur Rejection
3x3
f RF = 1900MHz,
f LO = 1700MHz,
f SPUR = 1766.7MHz
P RF = -10dBm, T C = +100°C
P RF = -5dBm
60
84.5
78
dBc
P RF =-5dBm, T C = +100°C
74.5
Maximum LO Leakage at RF Port
Maximum 2LO Leakage at RF Port
Maximum LO Leakage at IF Port
Minimum RF-to-IF Isolation
f LO = 1400MHz to 2000MHz
f LO = 1400MHz to 2000MHz
f LO = 1400MHz to 2000MHz
T C = +100°C
f RF = 1700MHz to 2200MHz, f IF = 200MHz
T C = +100°C
-29
-17
-25
-50.4
37
44
dBm
dBm
dBm
dB
LO1 - LO2 Isolation
P LO1 = 0dBm, P LO2 = 0dBm (Note 10)
40
50.5
dB
Minimum Channel-to-Channel
Isolation
LO Switching Time
P RF = -10dBm, RFMAIN (RFDIV)
power measured at IFDIV (IFMAIN),
relative to IFMAIN (IFDIV),
all unused ports terminated at 50 Ω
50% of LOSEL to IF settled to within 2°
T C =
+100°C
40
44
54.7
50
dB
ns
Maxim Integrated
3