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IP Core Products > Cable > Multi-channel DVB-C J83 modulator |
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Multi-channel DVB-C/J83 modulator |
Product code: CMS0024 |
The CMS0024 multi-channel DVB-C/J83 modulator is fully compliant with the
European, US and Japanese downlink cable Standards DVB-C EN 300 429 and ITU J83
Annexes A/B/C (including DOCSIS 1.1/2.0). The core provides all the necessary
functions between transport stream input and a modulated QAM output. The core
can be configured to support from one to four FDM channels with additional
(independent) channels accommodated by the instantiation of multiple single or
multi-channel cores per FPGA. Multi-channel J.83B designs can operate either
from internal memory (short interleaving modes) or from shared external memory
(long interleaving modes) by means of a versatile access controller. Typical
applications of the CMS0024 include head-end video and broadband data
transmissions systems (CMTS), cable modem test equipment and point-to-point
(PTP) or point-to-multipoint microwave radio links. A range of synthesis
options allows the core to be tailored for any particular application. Also
see: |
DVB-C/J83 modulator DVB-C/J83 demodulator Universal
QAM/PSK modulator
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Block diagram
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Safari Plug-in
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information
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Downloads
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Certification
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Standards compliance
DVB-C EN 300 429
ITU J83 Annexes A/B/C
DOCSIS 1.1/2.0 |
Features
Modulation accuracy > 45dB (MER).
Variable symbol rate interpolation.
Software selectable channel filter.
On-chip or off-chip interleaver memory.
1 to 4 channels per core.
Single or multiple standards per core.
Multiple cores provide > 4 channels. |
Applications
Head-end digital video and broadband data (CMTS) transmission systems.
Next generation, bandwidth-on-demand CMTS systems employing channel-
bonding. |
Implementation
Optimised for Altera.
Evaluation boards available. |
Plug-ins / Extensions
ASI/SPI
interface with TS PCR rate
adaptation. | | |
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