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
_______________________________________________________________________________________ 7
2RF-2LO RESPONSE vs. RF FREQUENCY
RF FREQUENCY (MHz)
2RF-2LO RESPONSE (dBc)
MAX19999 toc10
3000 3200 3400 3600 3800 4000
50
60
70
80
90
P
RF
= -5dBm
T
C
= +85
°
C
T
C
= -30
°
C
T
C
= +25
°
C
2RF-2LO RESPONSE vs. RF FREQUENCY
RF FREQUENCY (MHz)
2RF-2LO RESPONSE (dBc)
MAX19999 toc11
300032003400360038004000
50
60
70
80
90
P
RF
= -5dBm
P
LO
= 0dBm
P
LO
= +3dBm
P
LO
= -3dBm
2RF-2LO RESPONSE vs. RF FREQUENCY
RF FREQUENCY (MHz)
2RF-2LO RESPONSE (dBc)
MAX19999 toc12
3000 3200 3400 3600 3800 4000
50
60
70
80
90
V
CC
= 4.75V, 5.0V, 5.25V
P
RF
= -5dBm
3RF-3LO RESPONSE vs. RF FREQUENCY
RF FREQUENCY (MHz)
3RF-3LO RESPONSE (dBc)
MAX19999 toc13
3000 3200 3400 3600 3800 4000
55
65
75
85
95
T
C
= -30
°
C, +25
°
C, +85
°
C
P
RF
= -5dBm
3RF-3LO RESPONSE vs. RF FREQUENCY
RF FREQUENCY (MHz)
3RF-3LO RESPONSE (dBc)
MAX19999 toc14
300032003400360038004000
55
65
75
85
95
P
RF
= -5dBm
P
LO
= -3dBm, 0dBm, +3dBm
3RF-3LO RESPONSE vs. RF FREQUENCY
RF FREQUENCY (MHz)
3RF-3LO RESPONSE (dBc)
MAX19999 toc15
3000 3200 3400 3600 3800 4000
55
65
75
85
95
P
RF
= -5dBm
V
CC
= 4.75V, 5.0V, 5.25V
INPUT P
1dB
vs. RF FREQUENCY
RF FREQUENCY (MHz)
INPUT P
1dB
(dBm)
MAX19999 toc16
3200 3375 3550 3725 3900
9
10
11
12
13
T
C
= +85
°
C
T
C
= +25
°
C
T
C
= -30
°
C
INPUT P
1dB
vs. RF FREQUENCY
RF FREQUENCY (MHz)
INPUT P
1dB
(dBm)
MAX19999 toc17
3200 3375 3550 3725 3900
9
10
11
12
13
P
LO
= -3dBm, 0dBm, +3dBm
INPUT P
1dB
vs. RF FREQUENCY
RF FREQUENCY (MHz)
INPUT P
1dB
(dBm)
MAX19999 toc18
3200 3375 3550 3725 3900
9
10
11
12
13
V
CC
= 5.25V
V
CC
= 5.0V
V
CC
= 4.75V