As its not sure we always be able to get the tuner we need, as there are difficult to find when they don't completely disappear from the market,
I have decided two month ago to build my own.
We have many solution for finding good Nim Tuner.
The USB chips used with almost USB tuner of the market is the CY7C86013A.
(Prof7500 = NIM EARDATEK + CY7C86013A, STB5980 = NIM EARD + CY7C86013A ......)
on this side there is only the Nim Tuner EARDATEK and capacitors
We can see on this side, that there are only component for power supplying the Nim tuner + power supply for LNB and CYC786013A for usb interface.
I have began 2 months ago to study this chip, but it is a very powerful chip that takes time to develop for the first time with it and my chineese sample was not sure to work well.
So I have chosen to test also a second solution less powerful but less "eating time" : use the FT2232H I already used with my Digilite modulator.
My first step was to test the I2C dialog between FT2232H minimodule and the Samsung NIM
And now develop Check software for this first build
As now I have made good test for this first step, I go to the second step : program the chip inside the NIM to check if I can lock on a DVB-S signal and specialy a very low SR signal (SR250)
Well! I am in the good way
Dernière édition par F6DZP
le Jeu 23 Juin 2016 15:01, édité 4 fois.