This paper describes recent technology trend of mixed analog digital RF circuits. With the progress of CMOS technology, largescale digital signal process and control function can be integrated in an RF integrated circuit and some analog signal process blocks can be translated to digital signal processing units. At the same time, the design of remaining analog functional blocks becomes very hard...

Thanks to the digital revolution, digital signal processing and control has been widely used in many areas of science and engineering today. It provides practical and powerful tools to model, simulate, analyze, design, measure, and control complex and dynamic systems such as robots and aircrafts. Gene networks are also complex dynamic systems which can be studied via digital signal processing a...