Patent ID: 7949325

Claim:
A radio frequency (RF) integrated circuit comprising: an RF receiver that generates inbound data based on an inbound RF signal; a RF transmitter that includes: a transmitter processing module that generates a processed signal based on outbound data, wherein the processed signal includes one of: a baseband signal and a low intermediate frequency signal; an up-conversion module, coupled to the transmitter processing module, that up-converts the processed signal to generate an up-converted signal; a programmable filter module, coupled to the up-conversion module, that generates a plurality of delayed signals from the up-converted signal and that generates a filtered up-converted signal by combining the up-converted signal and the plurality of delayed signals, wherein a delayed signal of the plurality of delayed signals is scaled based on one of a plurality of coefficients, wherein the plurality of coefficients are selected based on a control signal; a radio transmitter front-end, coupled to the programmable filter module, that generates a transmit signal based on the filtered up-converted signal; and a processing module, coupled to the programmable filter module, that generates the control signal to attenuate at least RF spur of the up-converted signal.