MAX2021 Datasheet, PDF (5/14 Pages) Maxim Integrated Products – High-Dynamic-Range, Direct Up-/Downconversion 750MHz to 1200MHz Quadrature Mod/Demod

High-Dynamic-Range, Direct Up-/Downconversion
750MHz 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 100Ω DC-coupled
source, 0V common-mode input, P_LO = 0dBm, 750MHz ≤ f_LO ≤ 1200MHz, 50Ω LO and RF system impedance, R1 = 432Ω, R2 = 619Ω,
R3 = 332Ω, 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 IP3 vs. LO FREQUENCY
30
T_C = +25°C
P_LO = -3dBm
25
P_LO = +3dBm
OUTPUT IP3
vs. COMMON-MODE VOLTAGE
26
f_LO = 900MHz, P_LO = 0dBm
25
24
OUTPUT IP3
vs. COMMON-MODE VOLTAGE
26
f_LO = 1000MHz
25
24
20
23
23
P_LO = -6dBm
22
22
15
P_LO = 0dBm
21
21
10
750
825 900 975 1050 1125 1200
LO FREQUENCY (MHz)
OUTPUT IP2 vs. LO FREQUENCY
80
T_C = -40°C
70
20
-3.50
-1.75
0
1.75
3.50
COMMON-MODE VOLTAGE (V)
OUTPUT IP2 vs. LO FREQUENCY
80
V_CC = 5.25V
70
20
-3.50
-1.75
0
1.75
3.50
COMMON-MODE VOLTAGE (V)
OUTPUT IP2 vs. LO FREQUENCY
80
P_LO = +3dBm
70
T_C = +25°C
60
60
V_CC = 5.0V
60
P_LO = -6dBm
50
T_C = +85°C
40
750
825 900 975 1050 1125 1200
LO FREQUENCY (MHz)
OUTPUT IP2
vs. COMMON-MODE VOLTAGE
80
f_LO = 900MHz
75
70
65
60
50
V_CC = 4.75V
40
750
825 900 975 1050 1125 1200
LO FREQUENCY (MHz)
OUTPUT IP2
vs. COMMON-MODE VOLTAGE
70
f_LO = 1000MHz
65
60
55
50
P_LO = 0dBm
P_LO = -3dBm
40
750
825 900 975 1050 1125 1200
LO FREQUENCY (MHz)
MODULATOR OUTPUT POWER
vs. INPUT POWER
20
INPUT SPLIT BETWEEN I AND Q,
f_IF = 25MHz, f_LO = 900MHz
15
10
5
V_CC = 4.75V, 5.0V, 5.25V
0
55
-3.50
-1.75
0
1.75
3.50
COMMON-MODE VOLTAGE (V)
50
-3.50
-1.75
0
1.75
3.50
COMMON-MODE VOLTAGE (V)
-5
10 13 16 19 22 25 28
INPUT POWER (dBm)
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