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DVB-T2 modulator
The Commsonic DVB-T2 Modulator core is intended to provide a very efficient FPGA or ASIC implementation of all functions required to take the output from an MPEG-2 transport multiplexer and modulate it according to the DVB-T2 ETSI EN302 755. The DVB-T2 modulator core is compliant with the specification and fully supports 1K, 2K, 4K, 8K, 16K and 32K COFDM modes. The DVB-T2 core features an integrated normal- and short-frame length BCH/LDPC encoder. Whilst L1FIELD padding, encoding and punturing is performed automatically by the core.
The standard output is a baseband I/Q digital pair for direct connection to a DAC. Alternative output configurations include a low IF or direct connection to standard Analog Devices Direct Digital Synthesizers (e.g. AD9857).
Every effort has been made to keep the size of the DVB-T2 modulator to an absolute minimum in order to target the low-cost FPGA families, however this has not been at the expense of functionality. Synthesis directives are used wherever possible to remove a block within the design has functionality that may not be required for all applications.
The standard output is a baseband I/Q digital pair for direct connection to a DAC. Alternative output configurations include a low IF or direct connection to standard Analog Devices Direct Digital Synthesizers (e.g. AD9857).
Every effort has been made to keep the size of the DVB-T2 modulator to an absolute minimum in order to target the low-cost FPGA families, however this has not been at the expense of functionality. Synthesis directives are used wherever possible to remove a block within the design has functionality that may not be required for all applications.
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