A Highly Integrated 0.25um BiCMOS Chipset for 3G UMTSNCDMA Handset RF Sub-system

The complete active portion of the 3G UMTS/WCDMA cellular handset RF sub-system is achieved with three RFICs. This chipset comprises a fully integrated ZIF Receiver including RF VCOlPLL and UMTS clock generation, a fully integrated direct conversion like Transmitter including RF VCOPLL, and a 25dBm average Power Amplifier including power detection circuitry. The three RFICs use the same baseline 0.25um BiCMOS technology opening possibilities to even higher integration level. This chipset is targeted at handset class 3 and 4 (PA is class 4 compatible only) European and Japanese 3G UMTS and WCDMA standards.