MAX2682EUT-T Ver la hoja de datos (PDF) - Maxim Integrated
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MAX2682EUT-T Datasheet PDF : 12 Pages
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MAX2680/MAX2681/
MAX2682
400MHz to 2.5GHz, Low-Noise,
SiGe Downconverter Mixers
Typical Operating Characteristics (continued)
(Typical Operating Circuit, VCC = SHDN = +3.0V, PRFIN = -25dBm, PLO = -5dBm, TA = +25°C, unless otherwise noted.)
MAX2680
INPUT IP3 vs. LO POWER
-5
fRF = 1950MHz, 1951MHz
fLO = 1880MHz
-6
fIF = 70MHz
PRFIN = -25dBm PER TONE
-7
-8
-9
-10
-14 -12 -10 -8 -6 -4 -2 0
LO POWER (dBm)
MAX2680
NOISE FIGURE vs. LO POWER
16
14
fRF = 2450MHz
12
10
fRF = 1950MHz
8
fRF = 900MHz
6
4
fRF
fLO
fIF
900MHz 970MHz 70MHz
2
1950MHz 2020MHz 70MHz
2450MHz 2210MHz 70MHz
0
-14 -12 -10 -8 -6 -4 -2 0
LO POWER (dBm)
MAX2680
RF PORT IMPEDANCE vs. RF FREQUENCY
300
0 MAX2680/1/2-19
IMAGINARY
250
-100
200
-200
150
-300
100
-400
50 fLO = 970MHz
PLO = -5dBm
0
0
500 1000
REAL
1500 2000
RF FREQUENCY (MHz)
-500
-600
2500
MAX2681
INPUT IP3 vs. LO POWER
2
1
0
-1
fRF = 1950MHz, 1951MHz
-2 fLO = 1880MHz
fIF = 70MHz
PRFIN = -25dBm PER TONE
-3
-14 -12 -10 -8 -6 -4 -2 0
LO POWER (dBm)
MAX2681
NOISE FIGURE vs. LO POWER
20
18
16
14
fRF = 2450MHz
12
fRF = 1950MHz
10
8
fRF = 900MHz
6
fRF
fLO
fIF
4 900MHz 970MHz 70MHz
2 1950MHz 2020MHz 70MHz
2450MHz 2210MHz 70MHz
0
-14 -12 -10 -8 -6 -4 -2 0
LO POWER (dBm)
MAX2681
RF PORT IMPEDANCE vs. RF FREQUENCY
300
0 MAX2680/1/2-20
250
IMAGINARY
-100
200
-200
150
-300
100
-400
50
fLO = 970MHz
PLO = -5dBm
0
0
500 1000
REAL
1500 2000
RF FREQUENCY (MHz)
-500
-600
2500
MAX2682
INPUT IP3 vs. LO POWER
7
fRF = 1950MHz, 1951MHz
6 fLO = 1880MHz
fIF = 70MHz
5 PRFIN = -25dBm PER TONE
4
3
2
1
0
-14
25
20
-12 -10 -8 -6 -4 -2 0
LO POWER (dBm)
MAX2682
NOISE FIGURE vs. LO POWER
fRF
fLO
fIF
900MHz 970MHz 70MHz
1950MHz 2020MHz 70MHz
2450MHz 2210MHz 70MHz
15
fRF = 2450MHz
10
fRF = 1950MHz
fRF = 900MHz
5
0
-14 -12 -10 -8 -6 -4 -2 0
LO POWER (dBm)
MAX2682
RF PORT IMPEDANCE vs. RF FREQUENCY
300
0 MAX2680/1/2-21
250
IMAGINARY
-100
200
-200
150
-300
100
-400
50 fLO = 970MHz
PLO = -5dBm
REAL
0
0
500 1000 1500 2000
RF FREQUENCY (MHz)
-500
-600
2500
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