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MAX2021
High-Dynamic-Range, Direct Up-/Downconversion
650MHz to 1200MHz Quadrature Mod/Demod
Typical Operating Characteristics
(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.)
TOTAL SUPPLY CURRENT
MODULATOR
300
vs. TEMPERATURE (T C )
-60
-62
ACLR vs. OUTPUT POWER PER CARRIER
-60
-62
ACLR vs. OUTPUT POWER PER CARRIER
280
V CC = 5.25V
-64
-66
-64
-66
ADJACENT CHANNEL
260
240
V CC = 5.0V
-68
-70
-72
ADJACENT CHANNEL
ALTERNATE CHANNEL
-68
-70
-72
220
V CC = 4.75V
-74
-76
-74
-76
ALTERNATE CHANNEL
200
-78
-80
SINGLE-CARRIER WCDMA
-78
-80
TWO-CARRIER WCDMA
-40
-15
10
35
60
85
-47
-37
-27
-17
-7
-47
-37
-27
-17
-7
-60
TEMPERATURE ( ° C)
ACLR vs. OUTPUT POWER PER CARRIER
70
OUTPUT POWER PER CARRIER (dBm)
SIDEBAND SUPPRESSION
vs. LO FREQUENCY
70
OUTPUT POWER PER CARRIER (dBm)
SIDEBAND SUPPRESSION
vs. LO FREQUENCY
-62
-64
ADJACENT CHANNEL
60
P LO = -3dBm
P LO = -6dBm
60
-66
-68
50
50
-70
ALTERNATE CHANNEL
40
40
-72
-74
-76
30
20
P LO = 0dBm
30
20
V CC = 4.75V, 5.0V, 5.25V
-78
-80
FOUR-CARRIER WCDMA
10
P LO = +3dBm
10
-47
-37
-27
-17
-7
750
825
900
975
1050
1125
1200
750
825
900
975
1050
1125
1200
70
OUTPUT POWER PER CARRIER (dBm)
SIDEBAND SUPPRESSION
vs. LO FREQUENCY
30
LO FREQUENCY (MHz)
OUTPUT IP3 vs. LO FREQUENCY
P LO = 0dBm, V CC = 5.0V
30
LO FREQUENCY (MHz)
OUTPUT IP3 vs. LO FREQUENCY
T C = +25 ° C
60
T C = +85 ° C
25
T C = -40 ° C
25
V CC = 5.25V
50
T C = +25 ° C
40
20
20
V CC = 5.0V
30
T C = +25 ° C
15
T C = +85 ° C
15
V CC = 4.75V
20
T C = -40 ° C
10
10
10
750
825
900
975
1050
1125
1200
750
825
900
975
1050
1125
1200
750
825
900
975
1050
1125
1200
6
LO FREQUENCY (MHz)
LO FREQUENCY (MHz)
LO FREQUENCY (MHz)
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