Patent ID: 7551127

Claim:
A reconfigurable downconverter for a multi-band receiver comprising: a fixed frequency local oscillator generating a fixed frequency local oscillator signal; a fixed radio frequency (RF) mixer operable to accept a predetermined wide range of frequencies and output a first downconverted intermediate frequency (IF) signal under the control of the local oscillator signal; at least one IF processor coupled to the RF mixer, the IF processor operable to further downconvert the first downconverted IF signal from the RF mixer to at least one baseband signal, the at least one IF processor being reconfigurable for different RF frequency bands by at least one first control signal received into the at least one IF processor; and a programmable frequency divider that receives the local oscillator signal and further receives at least one second control signal to divide the local oscillator signal to generate a plurality of local oscillator clock signals each having both an I-phase and a Q-phase, wherein at least one of the plurality of clock signals is used by the at least one IF processor to downconvert the first downconverted IF signal to a second downconverted IF signal that is used to generate the at least one baseband signal.