MAX2721EUP Ver la hoja de datos (PDF) - Maxim Integrated
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MAX2721EUP 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)
MODULATOR OUTPUT POWER
vs. INPUT LEVEL (TA = -40°C)
10
MAX2720
MODULATOR OUTPUT POWER
vs. INPUT LEVEL (TA = +25°C)
10
MODULATOR OUTPUT POWER
vs. INPUT LEVEL (TA = +85°C)
10
0
-10
-20 VPC = 2.5V
-30 VPC = 2.0V
VPC = 1.5V
-40
-50
VPC = 1.0V
VPC = 0.5V
0
-10
-20
VPC = 2.5V
-30 VPC = 2.0V
VPC = 1.5V
-40
-50
VPC = 1.0V
VPC = 0.5V
0
-10
-20 VPC = 2.5V
-30 VPC = 2.0V
VPC = 1.5V
-40
-50
VPC = 1.0V
VPC = 0.5V
-60
10
100
1000
INPUT LEVEL (mVp-p)
10,000
-60
10
100
1000
INPUT LEVEL (mVp-p)
10,000
-60
10
100
1000
INPUT LEVEL (mVp-p)
10,000
25
20
15
10
5
0
-5
-10
-15
-20
-25
-30
0
MODULATOR OUTPUT IP3
vs. PC VOLTAGE
TA = +85°C
TA = +25°C
TA = -40°C
0.5 1.0 1.5 2.0 2.5 3.0
PC VOLTAGE (V)
LO PORT VSWR
vs. LO FREQUENCY (ENX2 = GND)
2.8
2.4
2.0
1.6
1.2
1.0
850
890 930 970 1010 1050
FREQUENCY (MHz)
LO PORT VSWR
vs. LO FREQUENCY (ENX2 = VCC)
2.8
2.4
2.0
1.8
1.4
1.0
1700 1780 1860 1940 2020 2100
FREQUENCY (MHz)
8 _______________________________________________________________________________________
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