VLSI technology for telecommunication ICs

The majority of integrated circuits used in telecommunication applications involves a mix of analog and digital functions. Of the available silicon integrated circuit technologies NMOS, CMOS, and I/SUP 2/L/bipolar appear to be the most suitable for these applications since they can provide low power operation as well as high functional density analog and digital circuits on the same chip. The author reviews the requirements for telecommunications VLSI products, and discusses the choice of suitable IC technologies and the future status of these technologies.