COM-1827SOFT PCM/FM DEMOD, VHDL source/IP core



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The COM-1827SOFT_PCMFM_DEMOD is a non-coherent demodulator for PCM/FM continuous phase modulation with flexible programmable features
  • Programmable modulation index h [0.5 to 0.8]
  • Programmable symbol rate up to fclk/4, where fclk is the processing clock frequency
  • Excellent BER performance using multisymbol detection and 4-state trellis decoding (SOVA). 4-bit soft-decision demodulator output for best FEC decoder performance
  • BER < 10-5 at 9.2dB Eb/No
  • AFC for carrier frequency acquisition of 10% of symbol rate
  • Acquisition threshold < 2dB Eb/No
  • Ancillary functions: BER tester, Matlab code for generating sampled stimulus waveforms
  • Tested on Xilinx 7-series FPGA, but portable to other FPGA types
The entire VHDL source code is deliverable.
Unlimited license to make and use. See the complete licensing terms at
Modulator code is sold separately: see com-1827SOFT_CPM_MOD

This product was added to our catalog on Wednesday 20 February, 2019.

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