Patent ID: 6970689

Claim:
A programmable mixer, comprising: a mixer module operable to receive differential signal inputs and differential local oscillator inputs and to generate a mixed signal output there from, the mixer having a plurality of operating states wherein each of the plurality of operating states corresponds to a magnitude of local oscillator frequency component passed by the mixer module; a power amplifier receiving the output of the mixer and generating an outbound RF signal, the power amplifier having first and second power output levels, the second power level being a higher power output operable during a calibration cycle during which the local oscillator leakage signal is measured; a signal strength detector operably connected to measure the local oscillator leakage signal of the outbound RF signal generated by the power amplifier; and a compensation module operable to generate a control signal to set the operational parameters of the mixer to the operating state that minimizes the magnitude of the local oscillator leakage signal component of the signal passed by the mixer.