Datasheet

MAX9995
Dual, SiGe, High-Linearity, 1700MHz to 2700MHz
Downconversion Mixer with LO Buffer/Switch
4
Maxim Integrated
CONVERSION GAIN vs. RF FREQUENCY
MAX9995 toc01
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
2100200019001800
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
3.0
1700 2200
T
C
= -20°C
T
C
= +85°C
T
C
= +25°C
CONVERSION GAIN vs. RF FREQUENCY
MAX9995 toc02
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
2100200019001800
5.6
5.7
5.8
5.9
6.0
6.1
6.2
6.3
6.4
6.5
5.5
1700 2200
P
LO
= -3dBm, 0dBm, +3dBm
CONVERSION GAIN vs. RF FREQUENCY
MAX9995 toc03
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
2100200019001800
5.6
5.7
5.8
5.9
6.0
6.1
6.2
6.3
6.4
6.5
5.5
1700 2200
V
CC
= 4.75V
V
CC
= 5.0V
V
CC
= 5.25V
Typical Operating Characteristics
( Typical Application Circuit , V
CC
= 5.0V, P
RF
= -5dBm, P
LO
= 0dBm, LO is low-side injected for a 200MHz IF, T
C
= +25°C.)
Note 5: Operation outside this frequency band is possible but has not been characterized. See the
Typical Operating Characteristics .
Note 6: Guaranteed by design and characterization.
Note 7: All limits reflect losses of external components. Output measurements taken at IF outputs of
Typical Application Circuit .
Note 8: Production tested.
Note 9: Two tones 3MHz spacing, -5dBm per tone at RF port.
Note 10: Measured at IF port at IF frequency. f
LO1
and f
LO2
are offset by 1MHz.
Note 11: IF return loss can be optimized by external matching components.
AC ELECTRICAL CHARACTERISTICS—f
RF
= 2540MHz
( Typical Application Circuit , RF and LO ports are driven from 50Ω sources, f
RF
> f
LO
, V
CC
= 5.0V, P
RF
= -5dBm, P
LO
= 0dBm, f
RF
=
2540MHz, f
LO
= 2400MHz, f
IF
= 140MHz, T
C
= +25°C, unless otherwise noted.) (Note 7)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RF Return Loss 14 dB
LO port selected 18
LO Return Loss
LO port unselected 21
dB
IF Return Loss
LO driven at 0dBm, RF terminated into 50Ω
(Note 11)
21 dB
Conversion Gain G
C
5.2 dB
Input Third-Order Intercept Point IIP3
Two tones: f
RF1
= 2540MHz, f
RF2
= 2541MHz,
P
RF
= -5dBm/tone
24.6 dBm
P
RF
= -10dBm 58
2RF - 2LO Spurious Response 2 x 2
P
RF
= -5dBm 63
dBc
P
RF
= -10dBm 72
3RF - 3LO Spurious Response 3 x 3
P
RF
= -5dBm 82
dBc
LO Leakage at IF Port -45 dBm
RF-to-IF Isolation 49 dB
Channel-to-Channel Isolation
P
RF
= -10dBm, RFMAIN (RFDIV) power
measured at IFDIV (IFMAIN), relative to IFMAIN
(IFDIV), all unused ports terminated at 50Ω
48 dB