Eliminating software adjustments in circuits based on digital logic improves robustness and reduces cost for small-production-run series. This circuit is a cost-improved version of classical QPSK ...

As telecommunication technologies evolve there is an on-going drive for the development of high-performance systems for radio communications. Part of that evolution involves implementing components in ...

A 1-GHz quadrature modulator, the AD8345 is designed for use as an IF modulator in cellular IS95, IS136, GSM and 3G basestation equipment as a direct conversion modulator within the CDMA/GSM 800/900 ...

Signal modulation is one of the most basic and important concepts in the RF industry. It consists of using the variation of one or more parameters of a carrier signal to transmit information, ...