Patent ID: 7088979

Claim:
An apparatus comprising: a first circuit comprising a first filter and a first mixer configured to generate an upconverted signal in response to mixing an input signal and a first oscillation signal, wherein said first filter is implemented at a quality factor which allows (i) said first filter to filter undesired channels from said unconverted signal and (ii) said first mixer to be integrated on the same integrated circuit as said first filter; a second circuit comprising a second filter and a second mixer configured to generate a downconverted signal in response to mixing said upconverted signal and a second oscillation signal, wherein said second filter is implemented at a quality factor which allows (i) said second filter to filter undesired channels from said downconverted signal and (ii) said second mixer to be integrated on the same integrated circuit as said second filter; and a third circuit configured to generate an output signal in response to mixing said downconverted signal with a third oscillation signal, wherein (i) said third oscillation signal is generated by dividing said second oscillation signal in said second circuit and (ii) said third circuit is configured to filter undesired channels from said output signal.