Method and system for multi-band direct conversion complimentary metal-oxide-semiconductor (CMOS) mobile television tuner

A system for processing wireless information, the system comprising:

• a single-chip multi-band radio frequency (RF) receiver comprising a plurality of RF front-ends, wherein each of said plurality of RF front-ends is operable to handle processing of at least a UHF signal and an L-band signal;
• said single-chip multi-band RF receiver being operable to receive an RF signal;
• said single-chip multi-band RF receiver being operable to amplify said received RF signal utilizing a low noise amplifier (LNA) integrated in one of said plurality of RF front-ends that corresponds to said received RF signal;
• said single-chip multi-band RF receiver being operable to directly convert within said single-chip multi-band RF receiver said amplified received RF signal to a baseband frequency signal utilizing one or more passive mixers, a fractional-N synthesizer, and a voltage-controlled oscillator (VCO) operably coupled to said fractional-N synthesizer;
• and
• prior to said direct conversion, said single-chip multi-band RF receiver being operable to determine a received signal strength indicator (RSSI) value for said amplified received RF signal, wherein said single-chip multi-band RF receiver is operable to utilize said determined RSSI value to control a gain of one or more amplifiers in said single-chip multi-band RF receiver.

A system for processing wireless information, the system comprising:

• a receiver in an integrated circuit comprising a first radio frequency (RF) front-end and a second RF front-end, wherein said first RF front-end is operable to process signals from a first frequency band and said second RF front-end is operable to process signals from a second frequency band different from said first frequency band;
• said receiver comprising a fractional-N synthesizer operable to generate a local oscillator signal;
• said first RF front-end being operable to directly convert a received RF signal corresponding to said first frequency band to a baseband signal utilizing said local oscillator signal;
• said second RF front-end being operable to directly convert a received RF signal corresponding to said second frequency band to a baseband signal utilizing said local oscillator signal;
• said receiver being operable to amplify said received RF signal corresponding to said first frequency band and said received RF signal corresponding to said second frequency band;
• and
• said receiver being operable to determine, prior to said direct conversion, one or both of a received signal strength indicator (RSSI) value for said amplified received RF signal corresponding to said first frequency band and an RSSI value for said amplified received RF signal corresponding to said second frequency band, wherein one or both of said determined RSSI values are utilized within said receiver to control a gain of one or more amplifiers.