Datasheet

MAX19985A
Dual, SiGe, High-Linearity, 700MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
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Typical Operating Characteristics
( Typical Application Circuit , V
CC
= +5.0V, P
LO
= 0dBm, P
RF
= -5dBm, LO is high-side injected for a 200MHz IF, T
C
=+25°C, unless
otherwise noted.)
CONVERSION GAIN vs. RF FREQUENCY
MAX19985A toc01
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
900800
7
8
9
10
11
6
700 1000
T
C
= +85
°
C
T
C
= +25
°
C
T
C
= -30
°
C
CONVERSION GAIN vs. RF FREQUENCY
MAX19985A toc02
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
900800
7
8
9
10
11
6
700 1000
P
LO
= -3dBm, 0dBm, +3dBm
CONVERSION GAIN vs. RF FREQUENCY
MAX19985A toc03
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
900800
7
8
9
10
11
6
700 1000
V
CC
= 4.75V, 5.0V, 5.25V
INPUT IP3 vs. RF FREQUENCY
MAX19985A toc04
RF FREQUENCY (MHz)
INPUT IP3 (dBm)
900800
23
24
25
26
27
22
700 1000
T
C
= +85°C
T
C
= +25°C
T
C
= -30°C
P
RF
= -5dBm/TONE
INPUT IP3 vs. RF FREQUENCY
MAX19985A toc05
RF FREQUENCY (MHz)
INPUT IP3 (dBm)
900800
23
24
25
26
27
22
700 1000
P
LO
= +3dBm, 0dBm
P
LO
= -3dBm
P
RF
= -5dBm/TONE
INPUT IP3 vs. RF FREQUENCY
MAX19985A toc06
RF FREQUENCY (MHz)
INPUT IP3 (dBm)
900800
23
24
25
26
27
22
700 1000
V
CC
= 5.0V
V
CC
= 5.25V
V
CC
= 4.75V
P
RF
= -5dBm/TONE
NOISE FIGURE vs. RF FREQUENCY
MAX19985A toc07
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
900800
7
6
8
9
10
11
12
5
700 1000
T
C
= +85
°
C
T
C
= +25
°
C
T
C
= -30°C
NOISE FIGURE vs. RF FREQUENCY
MAX19985A toc08
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
900800
7
6
8
9
10
11
12
5
700 1000
P
LO
= -3dBm, 0dBm, +3dBm
NOISE FIGURE vs. RF FREQUENCY
MAX19985A toc09
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
900800
7
6
8
9
10
11
12
5
700 1000
V
CC
= 4.75V, 5.0V, 5.25V