WCDMA receiver architecture with unique frequency plan

A WCDMA receiver architecture is presented that utilizes the subsampling concept to down-convert the IF signal to a lower IF before being digitized. The receiver does not need an anti-aliasing filter before the ADC, only uses a single path until the ADC and generates the I and Q paths in digital domain to avoid I-Q analog mismatches. This architecture utilizes a bandpass sigma-delta ADC with 55 dB dynamic range.