The Receiver

As we have outlined in Chapter 2, there is a choice of superhet or zero/near-zero IF
receiver architecture. If the superhet approach is chosen, it will certainly employ a sampled/
digitized IF approach in order to provide the functional flexibility required. This
approach enables us to realize a multimode—for example, GSM and W-CDMA—
handset with a common hardware platform but with the modes differentiated by software.
The following sections outline the functions that are required after sampling the
IF in order to pass the signal to the RAKE receiver processes.