Patent ID: 7742752

Claim:
An integrated circuit radio transceiver, comprising: a baseband processor for generating outgoing digital signals and for receiving and processing ingoing digital signals; front-end circuitry for producing outgoing RF based upon the outgoing digital signals and for producing the ingoing digital signals based upon received ingoing RF; and active filtration circuitry operably disposed to provide filtration of continuous waveform signals within the front-end circuitry, the filtration circuitry including: an amplification device that includes an input and an output; a capacitive device coupled across the input and the output; and a high resolution resistive circuit coupled to the input of the amplification device and to the capacitive device wherein the active filtration circuitry is operable to selectively provide very high resolution changes to operation of the filtration circuitry wherein the resistive circuit comprises a plurality of selectable parallel paths each having a plurality of series coupled resistive elements.