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IP Core Products > Cable > DVB-C J83 modulator |
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| Product code: CMS0021 |
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The CMS0021 single-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.
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 CMS0021 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. |
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Block diagram
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Safari Plug-in
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Downloads
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me when these downloads are updated |
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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 |
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Features
Modulation accuracy > 45dB (MER).
Variable symbol rate interpolation.
Software selectable channel filter.
On-chip or off-chip interleaver memory.
Single or multiple standards per core.
Multiple cores provide > 1 channel. |
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Applications
Head-end digital video and broadband data (CMTS) transmission systems.
Next generation, bandwidth-on-demand CMTS systems employing channel-
bonding. |
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Implementation
Optimised for Xilinx and Altera.
Evaluation boards available. |
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Plug-ins / Extensions
ASI/SPI
interface with TS PCR rate
adaptation. | | |
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