A Method of Digitally Controlled Frequency Generation.

摘要

For years the advantages of being able to produce several frequencies from a single master source have been recognized. In many applications, the easiest method of producing different frequencies from a master clock has been to divide the clock frequency by stages to obtain a frequency which is a power-of-two division of the clock. This method has the intrinsic advantages of extreme simplicity, stability commensurate with the master clock, and precise repeatability. Its disadvantage is that only a very limited number of such frequencies may be produced. This paper describes a method by which a large number of precise, stable frequencies may be derived from a single frequency source. (Author)