MAX2720EUP 查看數據表（PDF） - Maxim Integrated
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MAX2720EUP Datasheet PDF : 24 Pages
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1.7GHz to 2.5GHz, Direct I/Q Modulator with
VGA and PA Driver
Typical Operating Characteristics (continued)
(MAX2720/MAX2721 EV Kit, VCC = +3.0V, SHDN = VCC, ENX2 = GND, VPC = 2.5V, input I/Q signals driven in quadrature, from a
1kΩ source impedance, single-ended, fI+ = fQ+ = 500kHz, VI+ = VQ+ = 200mVp-p, PLO = -13dBm, fLO = 950MHz (MAX2720), fLO =
1157.5MHz (MAX2721), PDRIN = -12dBm, fDRIN = 1900MHz (MAX2720), fDRIN = 2315MHz (MAX2721), MODOUT and DROUT ports
are matched to a 50Ω load, TA = +25°C, unless otherwise noted.) (Note 1)
MAX2721
SUPPLY CURRENT vs. SUPPLY VOLTAGE
WITH PA DRIVER ENABLED
120
110
TA = +85°C
100
90
80
70
TA = +25°C
60
50
TA = -40°C
40
30
ENX2 = GND
ENX2 = VCC
20
2.7 2.8 2.9 3.0 3.1 3.2 3.3
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
WITH PA DRIVER DISABLED
120
DRIN = GND
110
100
90
80
TA = +85°C
70
60
TA = +25°C
50
40
30
20
2.7
ENX2 = GND
ENX2 = VCC
TA = -40°C
2.8 2.9 3.0 3.1 3.2 3.3
SUPPLY VOLTAGE (V)
MODULATOR OUTPUT POWER
vs. RF FREQUENCY
0
VPC = 2.5V
-5
TA= -40°C
-10 VPC = 1.5V
-15
-20
-25
TA= +25°C TA= +85°C
-30
-35 VPC = 0.5V
-40
-45
-50
2100
2200
2300
2400
2500
RF FREQUENCY (MHz)
MODULATOR PERFORMANCE
vs. LO POWER (ENX2 = GND)
0
-5 OUTPUT POWER
-10
-15
-20
-25 SIDEBAND SUPPRESSION
-30
-35 CARRIER SUPPRESSION
-40
-19 -17 -15 -13 -11 -9 -7 -5
RF FREQUENCY (MHz)
MODULATOR PERFORMANCE
vs. LO POWER (ENX2 = VCC)
0
-5
OUTPUT POWER
-10
-15
-20
-25
SIDEBAND SUPPRESSION
-30
-35
CARRIER SUPPRESSION
-40
-19 -17 -15 -13 -11 -9 -7 -5
LO POWER (dBm)
______________________________________________________________________________________ 11
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