I spent a while looking at DVB-S2 modules from Comtech
They do a number of DVB-S / S2 modules. The modules
are controlled using I2C and supply their decoded data in
Transport Stream format using an 8 bit parallel port.
The modules consist of an RF to baseband down converter
chip which outputs IQ data which is fed into the decoder chip.
They use a range of decoders DVB-T,DVB-S2,ISDB-T
8VSB etc from a number of different manufacturers.
Sunday, 5 September 2010
I am currently investigating the use of FPGAs for DATV applications.
Above is a small development board sold by KNJN . The picture shows the
basic Saxo board. With a few extra components these could be used for
caption generators or tescard generators. Larger FPGAs can of course
be used for DVB encoders.
My blog has been a bit sparse recently so I thought I better post what
I have been up to. Currently I am using Verilog and the Altera QuartusII
tool to play FPGAs. Verilog seems easier to understand than VHDL but
whether I have chosen the best one for a hobby engineer I don't know.