Multiple outputs frequency synthesizer

Abstract

Frequency synthesizers are an essential part of any modern electronic system. They generate clock with desired frequency used for next signal processing. The fine frequency resolution, low spurious signals, accuracy and stability are most important for these devices. In this paper, the new principle of multiple output fractional frequency synthesizer architecture based on digital circuits is presented. The software version, realized by microcontrollers was also tested. The theory is confirmed by simulation; moreover measuring results are also presented. The new synthesizer can be used also as a universal building block (fractional divider) in phase locked loop frequency synthesizers.