DVB-T/H modulator - RF output with AD9789 DAC
  DVB-T OFDM / COFDM modulator
         
  Full DVB-T/H modulator - RF output with AD9789 DAC  
         
  The DVB-T/H modulator modulates an MPEG-TS DVB-SPI input into a OFDM output in base band for AD9789 RF DAC. DVB-T/H COFDM modulator block diagram  
         
Description

The MVD DVB-T/H modulator is a drop-in module for FPGA that includes the following functions :
  • Input data framer from Microprocessor, DVB-SPI source (MPEG-TS flow)
  • DVB-T modulator
    • Energy dispersal
    • Reed Solomon encoder
    • Convolutional interleaver
    • FEC convolution encoder
    • Inner interleaver
    • QPSK/QAM symbol mapper
    • Framer with pilots & TPS inserter
    • IFFT and guard interval insertion
  • Low pass filter
  • Output for complex DAC (2 x 16 bits)
  Features
  • ETSI, DVB-T/H (EN 300 744 V1.5.1) compliant baseband transmitter for Digital Terrestrial Television
  • Supported FPGA families: Spartan®-6, Virtex®-6/7, Kintex™-7, Artix™-7, Zynq™
  • Single clock
  • Robust SPI input (discarding of incorrect input packets)
  • PCR re-stamping
  • Single channel, supports hierarchical transmission
  • Configurable Convolutional Rate
  • Configurable in-depth interleaving for DVB-H
  • Programmable QPSK, 16-QAM and 64-QAM Symbol Mapping
  • Configurable support for 2k, 8k and 4k (DVB-H) OFDM modes
  • Programmable Guard Interval (1/4, 1/8, 1/16, 1/32)
  • Supports variable channel width 5 to 8 MHz
  • Base band output for complex DAC (2 x 16 bits)
  • Full synthesizable RTL VHDL design (not delivered) for easy customization
  • Design delivered as Netlist
  • MER > 40 dB
  • Carrier suppression > 45 dB
Applications

The MVD DVB-T/H modulator may be used in applications related to terrestrial transmission, typically at the head end.

Companion cores:

   
Documentation
Product brief        
Data sheet        
Application note "From MPEG-TS to RF"
           
Contact
Sales: info_cores@mvd-fpga.com
Technique: support_cores@mvd-fpga.com