Commsonic announces an update to its family of digital broadcast modulators
18 February 2008
Commsonic has announced an update to its family of digital broadcast modulators with new and enhanced cores for ATSC terrestrial and DVB-S2 satellite applications respectively.
The new core, designated the CMS0033, is compatible with the ATSC 8-VSB terrestrial Standard A/53 and has been designed for use in single and multi-channel applications employing asynchronous (e.g. ASI) or synchronous (e.g. SMPTE) transport stream interfaces.
A flexible clocking scheme and various build options ensure efficient use of resources on a wide range of FPGA platforms. For example, a typical configuration of the core with ASI interface and rate adaptation requires an FPGA with the resources of an Altera EP3C10.
The enhanced DVB-S2 modulator / S2X modulator, the CMS0025, features a number of enhancements over its predecessor including reduced latency and a 50% increase in throughput.
The throughput increase allows the modulator to support the full range of DVB-S2 modulation schemes, FEC code rates and CCM/VCM/ACM profiles at baud rates up to 45MHz on the low-cost Altera Cyclone2/3 and Xilinx Spartan3 FPGA families.
Both cores offer comprehensive radio interface options including baseband I/Q and low intermediate frequency (IF) as well as high IF through DDS DACs such as the Analog Devices AD9957.
The cores will be available for licence in March.
Founded in 2000, Commsonic (www.commsonic.com) provides technology, IP and specialist design services in the area of broadcast communications.
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