User Manual

Typical Operating Characteristics (continued)
( Typical Application Circuit , V
CC
= +5.0V, LO is low-side injected for a 350MHz IF, P
LO
= 0dBm, P
RF
= -5dBm, T
C
=+25°C, unless
otherwise noted.)
MAX19999
Dual, SiGe High-Linearity, 3000MHz to
4000MHz Downconversion Mixer with LO Buffer
10 ______________________________________________________________________________________
Typical Operating Characteristics (continued)
( Typical Application Circuit, V
CC
= +3.3V, LO is low-side injected for a 350MHz IF, P
LO
= 0dBm, P
RF
= -5dBm, T
C
=+25°C, unless
otherwise noted.)
LO PORT RETURN LOSS vs. LO FREQUENCY
LO FREQUENCY (MHz)
LO PORT RETURN LOSS (dB)
MAX19999 toc36
2650 2900 3150 3400 3650
25
20
15
10
5
0
P
LO
= -3dBm
P
LO
= 0dBm
P
LO
= +3dBm
SUPPLY CURRENT vs. TEMPERATURE (T
C
)
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
MAX19999 toc37
-35 -15 5 25 45 65 85
350
360
370
380
390
400
V
CC
= 4.75V
V
CC
= 5.0V
V
CC
= 5.25V
CONVERSION GAIN vs. RF FREQUENCY
MAX19999 toc38
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
3800360034003200
7
8
9
10
6
3000 4000
T
C
= +25°C
T
C
= -30°C
V
CC
= 3.3V
T
C
= +85°C
CONVERSION GAIN vs. RF FREQUENCY
MAX19999 toc39
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
3800360034003200
7
8
9
10
6
3000 4000
V
CC
= 3.3V
P
LO
= -3dBm, 0dBm, +3dBm
CONVERSION GAIN vs. RF FREQUENCY
MAX19999 toc40
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
3800360034003200
7
8
9
10
6
3000 4000
V
CC
= 3.0V, 3.3V, 3.6V