Patent ID: 7587224

Claim:
An integrated circuit radio transceiver, comprising: a configurable radio front end operable to receive ingoing radio frequency (RF) signals and to produce ingoing digital signals based upon the ingoing RF signals and further operable to receive outgoing digital signals and to produce outgoing RF signals; a baseband processor operably coupled to the radio front end to receive the ingoing digital signals and to produce the outgoing digital signals; and wherein the configurable radio front end further includes: a configurable balun block that receives the ingoing RF signals and bypasses balun circuitry to produce two single ended ingoing RF signals when operating in a single balanced mode and that produces a differential ingoing RF signal when operating in a double balanced mode; mixing circuitry for down-converting single ended ingoing RF signals and the differential ingoing RF signals based on a current mode of operation; and polarity control circuitry for controlling mixer output polarity of at least one mixer of the mixing circuitry; and wherein the integrated circuit radio transceiver bypasses the balun circuitry when operating in the single balanced mode and modifies a polarity of at least one mixer output when operating in a double balanced mode.