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MAX2021
High-Dynamic-Range, Direct Up-/Downconversion
650MHz to 1200MHz Quadrature Mod/Demod
Typical Operating Characteristics (continued)
(MAX2021 Typical Application Circuit, V CC = 4.75V to 5.25V, GND = 0V, I/Q differential inputs driven from a 100 ? DC-coupled source,
0V common-mode input, P LO = 0dBm, 750MHz ≤ f LO ≤ 1200MHz, 50 ? LO and RF system impedance, R1 = 432 ? , R2 = 619 ? , R3 =
332 ? , T C = -40°C to +85°C. Typical values are at V CC = 5V, V BBI = 1.4V P-P differential, V BBQ = 1.4V P-P differential, f IQ = 1MHz,
f LO = 900MHz, T C = +25°C, unless otherwise noted.)
MODULATOR OUTPUT POWER
MODULATOR
MODULATOR OUTPUT POWER
vs. INPUT POWER
vs. LO FREQUENCY
LO LEAKAGE vs. LO FREQUENCY
20
INPUT SPLIT BETWEEN I AND Q,
5
V BBI = V BBQ = 1.4V P-P
-40
LO LEAKAGE NULLED AT P RF = -1dBm
15
f IF = 25MHz, f LO = 900MHz
3
DIFFERENTIAL
-50
P RF = -40dBm
P RF = +5dBm
T C = -40 ° C
-60
10
1
-70
P RF = -7dBm
5
0
-5
P LO = -6dBm, -3dBm, 0dBm, +3dBm
-1
-3
-5
T C = +85 ° C
T C = +25 ° C
-80
-90
-100
P RF = -1dBm
10
13
16
19
22
25
28
750
825
900
975
1050
1125
1200
915
926
937
948
959
970
INPUT POWER (dBm)
LO LEAKAGE vs. LO FREQUENCY
LO FREQUENCY (MHz)
LO LEAKAGE vs. LO FREQUENCY
LO FREQUENCY (MHz)
OUTPUT NOISE vs. OUTPUT POWER
-40
P RF = -1dBm, LO LEAKAGE NULLED AT T C = +25 ° C
-40
P RF = -1dBm, LO LEAKAGE NULLED AT P LO = 0dBm
-150
T C = +25 ° C, f LO = 900MHz
-50
T C = -40 ° C
-50
P LO = -6dBm
P LO = -3dBm
-155
P LO = -6dBm
-60
-60
-160
P LO = -3dBm
-70
T C = +85 ° C
-70
-165
-80
-90
-80
-90
P LO = +3dBm
-170
-175
P LO = 0dBm
-100
T C = +25 ° C
-100
P LO = 0dBm
-180
P LO = +3dBm
915
926
937
948
959
970
915
926
937
948
959
970
-15
-10
-5
0
5
10
15
LO FREQUENCY (MHz)
-150
-155
-160
-165
-170
-175
-180
LO FREQUENCY (MHz)
OUTPUT NOISE vs. OUTPUT POWER
P LO = 0dBm, f LO = 900MHz
T C = +85 ° C
T C = -40 ° C
T C = +25 ° C
OUTPUT POWER (dBm)
-15
-10
-5
0
5
10
15
OUTPUT POWER (dBm)
8
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