This part is a kind of semiconductor called AD201-1.9AMT.

Function of this product has DVB-T Low Noise Amplifier.

Manufacturers : Rantelon

Image and pinout :

Some of the text within the PDF file :

RF/Microwave Electronics AD20­1.9AMT DVB­T LOW NOISE AMPLIFIER Product information: Vers 1B, issue Jun 2008, revised Feb 2012 GENERAL DESCRIPTION Amplifier AD20­1.9/AMT is intended for reliable receiving of PAL and DVB­T channels in regions where signal strength is quite small. Excellent low noise figure 1.9dB guarantees for the low level of its own contributed noise. Using remote powering option the amplifier can be activated through output connector. In this case some type of a current injector must be used (e.g. Rantelon BT­1). Power s [ ... ]

AD201-1.9AMT PDF Datasheet Download