A monolithic 1.9-GHz, 198-mW, 0.6m CMOS receiver which meets the specifications of the Digital Enhanced Cordless Telecommunications (DECT) standard is described. All of the RF, IF, and baseband receiver components, with the exception of the frequency synthesizers, have been integrated into a single chip solution. A description is given of a wide-band IF with double conversion architecture which...

The evolution of the Internet offers the opportunity to redesign how basic communication services are provided. All services, including (multimedia) telephony, radio and television, can be based on a common, packet-switched, connectionless infrastructure of the Internet. Intelligence is placed into end systems for scalability and controllability. This paper discusses the protocols and technolog...

The quadrature modulator is a fundamental radio component for worldwide digital wireless communication standards such as Global System for Mobile Communications (GSM), Digital Communications SystemsÐ1800 MHz (DCS1800), Digital European Cordless Telecommunications (DECT), American and Personal Digital Cellular (ADC/PDC), Japanese Personal Handy Phone (PHP RCR28). A typical system application and...

Arnongst the many possible voice functions that can be implemented, voice coding has carried the most promise of finding early applications due to potential use in the existing telecommunications networks. However, commercial realisation of this opportunity has been somewhat retarded, partly due to the problern of coding voice down to low data rates not being addressed adequately. Whereas this ...