User Manual

MAX19999
Dual, SiGe High-Linearity, 3000MHz to
4000MHz Downconversion Mixer with LO Buffer
4 _______________________________________________________________________________________
+3.3V SUPPLY AC ELECTRICAL CHARACTERISTICS
( Typical Application Circuit, typical values are at V
CC
= +3.3V, P
RF
= -5dBm, P
LO
= 0dBm, f
RF
= 3550MHz, f
LO
= 3200MHz,
f
IF
= 350MHz, T
C
= +25°C, unless otherwise noted.) (Note 8)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Conversion Gain G
C
8.0 dB
Conversion Gain Flatness
f
RF
= 3200MHz to 3900MHz, over any
100MHz band
0.15 dB
Gain Variation Over Temperature TC
CG
f
RF
= 3200MHz to 3900MHz, T
C
= -40°C to
+85°C
-0.01 dB/°C
Input Compression Point IP
1dB
8.4 dBm
Third-Order Input Intercept Point IIP3 f
RF1
- f
RF2
= 1MHz, P
RF
= -5dBm per tone 20.3 dBm
Third-Order Input Intercept
Variation Over Temperature
f
RF1
- f
RF2
= 1MHz, T
C
= -40°C to +85°C ±0.3 dBm
Noise Figure NF
SSB
Single sideband, no blockers present 10.5 dB
Noise Figure Temperature
Coefficient
TC
NF
Single sideband, no blockers present,
T
C
= -40°C to +85°C
0.018 dB/°C
P
RF
= -10dBm 74
2RF-2LO Spurious Rejection 2 x 2 f
SPUR
= f
LO
+ 175MHz
P
RF
= -5dBm 69
dBc
P
RF
= -10dBm 75
3RF-3LO Spurious Rejection 3 x 3 f
SPUR
= f
LO
+ 116.67MHz
P
RF
= -5dBm 65
dBc
RF Input Return Loss
LO on and IF terminated into a matched
impedance
16 dB
LO Input Return Loss
RF and IF terminated into a matched
impedance
15.5 dB
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
IF Output Return Loss
RF terminated into 50Ω, LO driven by a 50Ω
source, IF transformed to 50Ω using
external components shown in the Typical
Application Circuit
18 dB
RF-to-IF Isolation 28 dB
LO Leakage at RF Port (Notes 6, 9) -31 -24 dBm
2LO Leakage at RF Port -30 dBm
LO Leakage at IF Port -23 dBm
Channel Isolation
RFMAIN (RFDIV ) converted power
measured at IFDIV (IFMAIN), relative to
IFMAIN (IFDIV), all unused ports terminated
to 50Ω (Notes 6, 9)
36 39 dB
+5.0V SUPPLY AC ELECTRICAL CHARACTERISTICS (continued)
( Typical Application Circuit , V
CC
= +4.75V to +5.25V, RF and LO ports are driven from 50Ω sources, P
LO
= -3dBm to +3dBm,
P
RF
= -5dBm, f
RF
= 3200MHz to 3900MHz, f
LO
= 2800MHz to 3600MHz, f
IF
= 350MHz, f
RF
> f
LO
, T
C
= -40°C to +85°C. Typical val-
ues are at V
CC
= +5.0V, P
RF
= -5dBm, P
LO
= 0dBm, f
RF
= 3550MHz, f
LO
= 3200MHz, f
IF
= 350MHz, T
C
= +25°C, unless otherwise
noted.) (Note 8)