Tuner IF bus is connected to both MN88472 and RTL2832P. There is own 16.000 MHz crystal, which is a little bit odd as older RTL2832U + R820T designs used shared clock source from RTL2832U. R828D is flagship model, whilst R820T is reduced to DTV terrestrial only reception. That tuner is very similar than R820T tuner used earlier for some RTL2832U devices. I2C control bus is connected to RTL2832P I2C adapter. It is not clear whether it is connected using serial or parallel bus, though serial mode could be good guess, as there is no 8+ wires clearly visible needed for parallel mode. TS bus (between RTL2832P and MN88472) is hardly visible. There is own 20.500 MHz crystal, which offers clock source for demodulator. Earlier DVB-T2 capable demodulators used for PCTV devices are Sony CXD2820 and Silicon Labs Si2168. It is very first time when that chip is seen on PCTV device. For more information about that chip see my old blog posts of RTL2832U. Shortly, RTL2832U is USB interface and DVB-T demodulator in one package. RTL2832P is same chip than RTL2832U, but it has extra TS (transport stream) interface to connect external demodulator. Other side of PCB has 28.800 MHz crystal for RTL2832P and 20.500 MHz crystal for MN88472. Visible crystal near R828D is 16.000 MHz, clock source for R828D. Kernel driver has only DVB-T support at the moment, due to missing external DVB-T/T2/C demodulator driver.Īll relevant components, RTL2832P, MN88472 and R828D, could be found from that side of PCB. Initial Linux support is about to go in Kernel 3.13, or in a bad luck 3.14 as Kernel merge window is very near to open. Own Windows application is only application which could be used currently. Drivers that are coming with the device, are in a quite bad shape as even standard BDA interface didn't work. Windows drivers are near Realtek drivers, but those are still customized (?) for that device. Looks like device is build upon some new Realtek reference design, whilst it may different somehow. It is also a little bit bizarre as it advertises unofficial SDR (provided by RTL2832P).

That DTV stick is basically almost same than RTL2832U + R820T reference design, but there is one big difference - external DVB-T/T2/C demodulator. Own USB ID, 15f4:0131, is assigned to that device by device vendor. From manufacturer string we could guess it is AstroMeta Co. USB interface advertises manufacturer string 'astrometadvbt2' and product 'dvbt2'. It is sold without any real brand, though model number HD-901T2 is mentioned by some sellers. That is relatively young device as it appeared to market around 2 months ago, beginning of September 2013.

Usb tv stick hd