MRF374A データシートの表示（PDF） - Motorola => Freescale
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MRF374A Datasheet PDF : 12 Pages
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Freescale Semiconductor, Inc.
MRF374A TYPICAL CHARACTERISTICS
18
VDD = 32 Vdc
17.5
17
28 Vdc
16.5
16
15.5
15
400
Pout = 100 W (PEP)
IDQ = 750 mA
nFrequency = 6 MHz
500
600
700
800
900
f, FREQUENCY (MHz)
Figure 3. Gain versus Frequency
in Broadband Circuit
-15
Pout = 100 W (PEP)
-20 IDQ = 750 mA
nFrequency = 6 MHz
-25
-30
VDD = 28 Vdc
-35
-40
32 Vdc
-45
-50
400
500
600
700
800
900
f, FREQUENCY (MHz)
Figure 4. Intermodulation Distortion versus
Frequency in Broadband Circuit
45
Pout = 100 W (PEP)
40 IDQ = 750 mA
nFrequency = 6 MHz
35
VDD = 28 Vdc
30
32 Vdc
25
20
400
500
600
700
f, FREQUENCY (MHz)
800
900
Figure 5. Drain Efficiency versus Frequency
in Broadband Circuit
20
40
Gps
15
35
VDD = 32 Vdc
Pout = 100 W (PEP)
10
IDQ = 750 mA
nFrequency = 6 MHz
30
η
D
5
25
IRL
0
20
400
500
600
700
800
900
f, FREQUENCY (MHz)
Figure 6. Performance in Broadband Circuit
200
20
150
15
100
Ciss
10
50
Coss
5
Crss
0
0
0
10
20
30
40
50
60
VDS, DRAIN-SOURCE VOLTAGE (VOLTS)
Figure 7. Capacitance versus Voltage
40
-20
35
VDD = 32 Vdc
IDQ = 1.1 A
-25
30 f = 860 MHz
-30
2 K Mode COFDM
25 64 QAM
-35
10.5 Peak/Avg. Ratio
20
Gps
-40
15
IMR
-45
10
-50
5
η
-55
0
-60
0.1
1
10
100
Pout, OUTPUT POWER (WATTS) AVG.
Figure 8. COFDM Intermodulation, Gain and Efficiency
versus Output Power in Broadband Circuit
MOTOROLA RF DEVICE DATA
For More Information On This Product,
Go to: www.freescale.com
MRF374A
7
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