Patent ID: 8750819

Claim:
An apparatus comprising: a radio tuner formed on a single semiconductor die adapted in an integrated circuit (IC), the radio tuner having a configurable front end to receive and process a radio frequency (RF) signal via a signal path and including a variable impedance coupled to a first pin of the IC to provide a selected impedance level to a matching network coupled to the radio tuner, a varactor coupled to a second pin of the IC to provide a selected capacitance level to a tracking filter coupled to the radio tuner, and a controller coupled to the variable impedance and the varactor to control the variable impedance and the varactor responsive to a desired radio channel and a signal level of the RF signal; and the tracking filter coupled to receive the RF signal and to output a filtered RF signal to the radio tuner, wherein the tracking filter includes a tank formed of an inductance located external to the IC and the varactor.