MRF377 Ver la hoja de datos (PDF) - Motorola => Freescale
Número de pieza
componentes Descripción
Fabricante
MRF377 Datasheet PDF : 12 Pages
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TYPICAL ATSC 8VSB BROADBAND CHARACTERISTICS
18
45
17 Gps
40
16
35
15
η
14
13
12
11
10
9 ACPR
8
420 480
30
25
VDD = 32 Vdc
Pout = 80 W (Avg.)
-15
IDQ = 2000 mA
-20
ATSC 8VSB
-25
-30
-35
-45
540 600 660 720 780 840 900
f, FREQUENCY (MHz)
Figure 14. Single–Channel ATSC 8VSB
Broadband Performance
19
18.5
560 MHz
18
660 MHz
17.5
860 MHz
17
470 MHz
760 MHz
VDD = 32 Vdc
IDQ = 2000 mA
ATSC 8VSB
16.5
16
10
100
Pout, OUTPUT POWER (WATTS) AVG.
Figure 15. Single–Channel ATSC 8VSB Broadband
Performance Power Gain versus Output Power
40
VDD = 32 Vdc
35 IDQ = 2000 mA
ATSC 8VSB
30
25
20
15
470 MHz
560 MHz
660 MHz
760 MHz
860 MHz
10
5
0
10
100
Pout, OUTPUT POWER (WATTS) AVG.
Figure 16. Single–Channel ATSC 8VSB Broadband
Performance Drain Efficiency versus Output Power
-25
-30
-35
470 MHz
860 MHz
-10
-20
-30
-40
IMRL
-50
Reference
Point
660 MHz
-40
760 MHz
-45
-50
560 MHz
VDD = 32 Vdc
IDQ = 2000 mA
ATSC 8VSB
10
100
-60
-70
-80
3.25 MHz
3.25 MHz
-90
Offset
Offset
-100
-4.0 -3.2 -2.4 -1.6 -0.8 0 0.8 1.6 2.4
Pout, OUTPUT POWER (WATTS) AVG.
Figure 17. Single–Channel ATSC 8VSB Broadband Performance
Adjacent Channel Power Ratio versus Output Power
f, FREQUENCY (MHz)
Figure 18. ATSC 8VSB Spectrum
IMRU
3.2 4.0
MRF377 MRF377R3 MRF377R5
10
MOTOROLA RF DEVICE DATA
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