WIRELESS TELECOM SILICON INTEGRATION - ANALOG DESIGN FOR RADIO, BASEBAND AND SPEECH SPECTRUM

The application today, pushing analog design for CMOS and RF-bipolar i nto new frontiers is definitely the mobile radio telephony. New teleco m systems like GSM, PCN, DECT, DCS, Wireless in the loop... are all de veloping very rapidly and will enable us very soon to organise a compl ete telephone network with full coverage for your car, as well as in y our kitchen and on your office desk. In Europe the major telecom compa nies have worked together to establish one common standard for cellula r mobile radio communications at 900 MHz. Similar things are happening for other wireless personal communication systems. Basically the cell ular radio telephone, the wireless PABX and the wireless SLIC are brin ging the same challenges to analog circuit design: maximum integration of the basic radio functions into 1 or 2 silicon chips, CMOS, Bipolar or BiCMOS or GaAs. The analog circuit designer for radio telephone ap plications will need all the state of the art analog design know-how a vailable today, from RF-mixers and GHz range low noise amplifiers and local oscillator synthesizers over base band 100 kHz CMOS analog to lo w frequency speech analog to digital conversion. And for all these cir cuits the message is: minimum power consumption for battery autonomy, minimum silicon area for maximum functional integration per die to obt ain a small, low cost pocket size radio telephone.