Data Over Cable Service Interface Specification (DOCSIS) is an international telecommunications standard that permits the addition of high-bandwidth data transfer to an existing cable TV (CATV) system. It is employed by many cable television operators to provide Internet access over their existing hybrid fiber-coaxial infrastructure.

The Creonic DOCSIS 3.1 LDPC decoders are a complete solution for the downstream forward error correction, i.e. PLC decoder, NCP decoder and data decoder are included.

Applications
  • Cable TV networks
  • Wired transmission with the highest demands on forward error correction
 
Features the PLC Decoder Core Supports

  • Soft-Decision Demapper, Derandomizer, Deinterleaver, Depuncturer, and LDPC Decoder are included.
  • Support for 4k and 8K FFT sizes
  • Support for 16-QAM modulation
 
Features the NCP Decoder Core Supports
  • Soft-Decision Demapper, Derandomizer, Deinterleaver, Depuncturer, Deshortener, and LDPC Decoder are included.
  • Support for 4k and 8K FFT sizes
  • Support for QPSK, 16-QAM, and 64-QAM modulations
  • Provides derandomization data for downstream data path
 
Features the Data Decoder Core Supports
  • Zero-bit Insertion, Parity Deinterleaver, LDPC Decoder, Shortener, and BCH Decoder are included.
  • Support for all block sizes, incl. shortening (3 to 1779 bytes)
  • Data rate of more than 2.3 Gbit/s
 
Your Benefits
  • Low-power and low-complexity design.
  • Frame-to-frame on-the-fly configuration.
  • Faster convergence due to layered LDPC decoder architectures.
  • Early stopping criterion for iterative LDPC decoder, saving a considerable amount of energy.
  • Configurable amount of LDPC decoding iterations for trading-off throughput and error correction performance.
  • Collection of statistics (decoding success indicator, average number of iterations, modified bits).
  • Available for ASIC and FPGAs (Xilinx, Intel).
  • Deliverable includes VHDL source code or synthesized netlist, VHDL testbench, and bit-accurate Matlab, C or C++ simulation model.
 
Information
DOCSIS 3.1 Standard
 
Contact us for further information!