DVB-S/S2 Full NIM tuner

Hi friends,
I wanna to work with DVB-S/S2 Full NIM tuner. It has I2C link for controlling the tuner.
this tuner has Output frequency 950MHz ?? 2150MHz. when I wanna to work with this, should I select the desired channel?
Please help me. I don't know how tuner work and somewhat I must control.

You need the I2C programming manual of your DVB tuner to be able to do the channel tuning. Usually this manual can get from the manufacturer of the RFIC tuner chip set.

General I2C specification can find here:
http://www.nxp.com/documents/user_manual/UM10204.pdf

Dear vfone,
thanks for your response.
I need STB6100 datasheet and STB0903B datasheet, but I can not find the full datasheet on the net. Can you help me?

why you need this schematic ?

for programming