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Circuit nonlinearity and LO harmonics can cause large interferers to translate on to the same intermediate frequency as the desired channel. The mechanisms responsible for spurious mixing, which are distinct from intermodulation distortion, are analyzed and catalogued. The analysis leads to an optimal choice of IF for a fully integrated 900 MHz GSM receiver that resists all blockers.
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on (Volume:49 , Issue: 8 )
Date of Publication: Aug 2002