High-Linearity, 650MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
Typical Operating Characteristics (continued)
(Typical Application Circuit, optimized for the 700MHz band (see Table 1) , C1 = 7pF, C5 = 3.3pF, L1 and C4 are not used, V CC =
5V, P LO = 0dBm, P RF = 0dBm, f LO > f RF , f IF = 140MHz, T C = +25°C, unless otherwise noted.)
Downconverter Curves
9
CONVERSION LOSS vs. RF FREQUENCY
9
CONVERSION LOSS vs. RF FREQUENCY
9
CONVERSION LOSS vs. RF FREQUENCY
8
7
T C = +85°C
8
7
8
7
6
T C = -40°C
T C = +25°C
6
P LO = -3dBm, 0dBm, +3dB     m
6
V CC = 4.75V, 5.0V, 5.25V
5
5
5
650
700
750
800
850
650
700
750
800
850
650
700
750
800
850
36
RF FREQUENCY (MHz)
INPUT IP3 vs. RF FREQUENCY
P RF = 0dBm/TONE
36
RF FREQUENCY (MHz)
INPUT IP3 vs. RF FREQUENCY
P RF = 0dBm/TONE
36
RF FREQUENCY (MHz)
INPUT IP3 vs. RF FREQUENCY
P RF = 0dBm/TONE
34
34
34
V CC = 5.25V
32
T C = +25°C
T C = +25°C
32
32
T C = +85°C
V CC = 5.0V
30
30
P LO = -3dBm, 0dBm, +3dBm
30
V CC = 4.75V
28
26
T C = -40°C
28
26
28
26
650
700
750
800
850
650
700
750
800
850
650
700
750
800
850
80
70
60
RF FREQUENCY (MHz)
2LO - 2RF RESPONSE
vs. RF FREQUENCY
P RF = 0dBm
T C = +85°C
T C = +25°C
80
70
60
RF FREQUENCY (MHz)
2LO - 2RF RESPONSE
vs. RF FREQUENCY
P RF = 0dBm
P LO = +3dB     m
P LO = 0dBm
80
70
60
RF FREQUENCY (MHz)
2LO - 2RF RESPONSE
vs. RF FREQUENCY
P RF = 0dBm
50
T C = -40°C
50
P LO = -3dBm
50
V CC = 4.75V, 5.0V, 5.25V
40
40
40
650
700
750
800
850
650
700
750
800
850
650
700
750
800
850
RF FREQUENCY (MHz)
RF FREQUENCY (MHz)
RF FREQUENCY (MHz)
_______________________________________________________________________________________
9
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