ATSC modulator
   
         
  ATSC modulator
  
         
  The ATSC modulator modulates an MPEG-TS DVB-SPI input into an ATSC signal in baseband I/Q. ATSC modulator block diagram  
         
Description

The MVD ATSC core is a drop-in module for FPGA that includes the following functions:
  • Input data framer from DVB-SPI source (MPEG-TS flow)
  • ATSC modulator
    • Energy dispersal
    • Reed Solomon encoder
    • Interleaver
    • Trellis encoder
  • VSB modulator
  • Output for complex DAC (2x16bits)
   Features
  • ATSC A/53 Part 2 compliant modulator
  • Drop-in module for Spartan®-6, Virtex®-6,Artix™-7, Kintex™-7, Virtex-7 and Zynq™ FPGAs
  • Single clock (up to 160 MHz)
  • Robust SPI input (null packets deletion in option)
  • PCR re-stamping
  • Complex baseband outputs (2 x 16 bits) @ Fsymbol rate
  • Fully synthetizable RTL VHDL design (not delivered) for easy customization
  • Design delivered as netlist
    •
Applications

The ATSC modulator may be used in applications related to terrestrial transmission, typically at the cable head end.

The ATSC modulator core is delivered for baseband output to be natively connected to AD9789 DAC from Analog Devices.
When associated to our Up Sampler IP core, it can be used in Intermediate Frequency applications with IF DAC such as AD9744 from Analog Devices 
When associated to our Up Sampler and Up Converter IP cores, it can be used in RF applications with RF DAC such as AD9739A from Analog Devices or MAX5881 from Maxim.

Companion cores

Measurements

ATSC modulator spectrum
Click to enlarge

    
Documentation
Product brief        
Data sheet        
           
Contact
Sales: info_cores@mvd-fpga.com
Technique: support_cores@mvd-fpga.com