Low noise block converter integrated circuit

A low noise block (LNB) converter, comprising:

• a circuit board;
• and
• a LNB integrated circuit (IC), disposed on the circuit board, converting a first polarized signal and a second polarized signal to an intermediate frequency (IF) signal, wherein the LNB IC comprises:
• a first on-chip low noise amplification circuit, coupled to a first pin for receiving the first polarized signal from an antenna, partially removing image signal from the first polarized signal, and generating a first amplified and filtered polarized signal;
• a second on-chip low noise amplification circuit, coupled to a second pin for receiving the second polarized signal from the antenna, partially removing image signal from the second polarized signal, and generating a second amplified and filtered polarized signal;
• a RF path selector, coupled to the first and second amplification circuits, and directing the path of the first and second amplified and filtered polarization signals;
• and
• a signal downconverter, coupled between the RF path selector and a first output pin for receiving the first or second amplified and filtered polarization signal, and generating the intermediated frequency signal to the first output pin.

A satellite receiving system, comprising:

• an antenna;
• a set-top-box;
• a low noise block (LNB) converter integrated on a chip, coupled between the antenna and the set-top-box, converting a vertical polarized signal and a horizontal polarized signal received from the antenna to an intermediate frequency signal, wherein the LNB converter comprises:
• a first low noise amplification circuit, coupled to the first pin to receive the vertical polarized signal from the antenna, partially removing image signal from the vertical polarized signal, and generating an amplified and filtered vertical polarized signal;
• a second low noise amplification circuit, coupled to a second pin to receive the horizontal polarized signal from the antenna, partially removing image signal from the horizontal polarized signal, and generating an amplified and filtered horizontal polarized signal;
• a RF path selector, coupled to the first and second amplification circuits, and directing the path of the first and second amplified and filtered polarization signals;
• and
• a signal downconverter, coupled between the RF path selector and a first output pin to receive the first or second amplified and filtered polarization signal and generate the intermediated frequency signal to the set-top-box.