Rainbow Electronics MAX19985A - Manual (Page 14)

MAX19985A
Dual, SiGe, High-Linearity, 700MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
14 ______________________________________________________________________________________
2LO-2RF RESPONSE
vs. RF FREQUENCY
MAX19985A toc62
RF FREQUENCY (MHz)
2LO-2RF RESPONSE (dBc)
900 800
75
60
55
70
65
80
50
700 1000
T C = +85°C
P RF = -5dBm
T
C
= -30°C
T C = +25°C
V CC = 3.3V
2LO-2RF RESPONSE
vs. RF FREQUENCY
MAX19985A toc63
RF FREQUENCY (MHz)
2LO-2RF RESPONSE (dBc)
900 800
75
60
55
70
65
80
50
700 1000
P RF = -5dBm
P LO = +3dBm
P LO = -3dBm
P LO = 0dBm
V CC = 3.3V
2LO-2RF RESPONSE
vs. RF FREQUENCY
MAX19985A toc64
RF FREQUENCY (MHz)
2LO-2RF RESPONSE (dBc)
900 800
75
60
55
70
65
80
50
700 1000
P RF = -5dBm
V CC = 3.0V, 3.3V, 3.6V
3LO-3RF RESPONSE
vs. RF FREQUENCY
MAX19985A toc65
RF FREQUENCY (MHz)
3LO-3RF RESPONSE (dBc)
900 800
65
85
75
95
55
700 1000
T C = +85°C
P
RF
= -5dBm
T C = -30°C
T C = +25°C
V CC = 3.3V
3LO-3RF RESPONSE
vs. RF FREQUENCY
MAX19985A toc66
RF FREQUENCY (MHz)
3LO-3RF RESPONSE (dBc)
900 800
65
85
75
95
55
700 1000
P RF = -5dBm
P LO = -3dBm, 0dBm, +3dBm
V
CC
= 3.3V
3LO-3RF RESPONSE
vs. RF FREQUENCY
MAX19985A toc67
RF FREQUENCY (MHz)
3LO-3RF RESPONSE (dBc)
900 800
65
85
75
95
55
700 1000
P
RF
= -5dBm
V CC = 3.6V
V CC = 3.0V
V
CC
= 3.3V
INPUT P 1dB vs. RF FREQUENCY
MAX19985A toc68
RF FREQUENCY (MHz)
INPUT P
1dB
(dBm)
900 800
9
12
8
11
10
13
7
700 1000
T C = +85°C
T C = -30°C
T C = +25°C
V CC = 3.3V
INPUT P 1dB vs. RF FREQUENCY
MAX19985A toc69
RF FREQUENCY (MHz)
INPUT P
1dB
(dBm)
900 800
9
12
8
11
10
13
7
700 1000
P LO = -3dBm, 0dBm, +3dBm
V CC = 3.3V
INPUT P 1dB vs. RF FREQUENCY
MAX19985A toc70
RF FREQUENCY (MHz)
INPUT P
1dB
(dBm)
900 800
9
12
8
11
10
13
7
700 1000
V CC = 3.6V
V CC = 3.0V
V CC = 3.3V
Typical Operating Characteristics (continued)
( Typical Application Circuit, V CC = +3.3V, P LO = 0dBm, P RF = -5dBm, LO is high-side injected for a 200MHz IF, T C =+25°C, unless
otherwise noted.)