Patent ID: 8542784

Claim:
A receiver for using a reference oscillator signal provided by a crystal resonator to support multiple, different functionalities, the receiver comprising: a phase-locked loop (PLL) configured to provide a local oscillator signal based on the reference oscillator signal provided by the crystal resonator; a first mixer configured to mix a received signal received over a first input path with the local oscillator signal received over a second input path to provide a first frequency-shifted signal; an automatic frequency controller (AFC) configured to estimate a frequency offset of the local oscillator signal and adjust the PLL to compensate for the frequency offset; and a leakage canceler configured to shift the first frequency-shifted signal in frequency by an amount determined based on the frequency offset to compensate for a harmonic of the reference oscillator signal that couples to the first input path and propagates through the first mixer to the first frequency-shifted signal.