Theory of Operation
DM240XR High-Speed Digital Modulator
3-2
TM120 – Rev. 1.1
3.2 DVB-S2-BS-NBC Operation
The DVB-S2-BS-NBC version of the DM240XR complies with the ETSI EN 302 307 V1.1.1
(2004-01) specification for non-backward compatible broadcast services.
A block diagram of the signal flow is shown in Figure 3-2 below.
Terrestrial
Interface
PRBS
Generator
Terrestrial
Buffer
CRC-8
Encoder
Slicer
BCH
Encoder
LDPC
Encoder
Bit
Interleaver
BB
Filter
PL
Framing
DVB
Sync
PLL
IQ
Modulator
Tx Clock
Symbol Clock
Stream
Adaptation
Mapping
IF Out
Tx Data
SCT
SCTE
DDS
Figure 3-2. Functional Block Diagram
Содержание DM240XR
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Страница 10: ...Table of Contents DM240XR High Speed Digital Modulator x TM120 Rev 1 1 ...
Страница 12: ...Introduction DM240XR High Speed Digital Modulator 1 2 TM120 Rev 1 1 ...
Страница 16: ...Installation DM240XR High Speed Digital Modulator 2 4 TM120 Rev 1 1 ...
Страница 19: ...DM240XR High Speed Digital Modulator Theory of Operation TM120 Rev 1 1 3 3 ...
Страница 55: ...User Interfaces DM240XR High Speed Digital Modulator 4 36 TM120 Rev 1 1 ...
Страница 67: ...Rear Panel Interfaces DM240XR DVB High Speed Digital Modulator 5 12 TM120 Rev 1 1 ...
Страница 69: ...Maintenance and Troubleshooting DM240XR High Speed Digital Modulator 6 2 TM120 Rev 1 1 ...
Страница 79: ...Technical Specifications DM240XR High Speed Digital Modulator 7 10 TM120 Rev 1 1 ...
Страница 103: ...Appendix A DM240XR High Speed Digital Modulator A 24 TM120 Rev 1 1 ...
Страница 124: ...DM240XR High Speed Digital Modulator Appendix B TM120 Rev 1 1 B 21 ...