Patent ID: 7233774

Claim:
A multi-stage mixer module, comprising: a transconductance block for receiving an input signal having a frequency, the transconductance block for converting the input signal from a voltage to a current to produce a first mixing stage input signal in a current domain; a first frequency mixing stage coupled to receive a first reference signal and the first mixing stage input signal, the first mixing stage producing a second mixing stage input signal in the current domain; a second frequency mixing stage coupled to receive a second reference signal and the second mixing stage input signal, the second mixing stage producing a second mixing stage output signal in the current domain wherein a sum of a frequency value of the first reference signal, when added to a frequency value of the second reference signal, is equal to an uncompensated local oscillation signal frequency value; and an output stage coupled to receive the second mixing stage output signal, the output stage for converting the second mixing stage output signal from the current domain to a voltage domain to produce a mixer module output signal.