Additional Simplification of the Precision Frequency Synthesizer

The development and creation of frequency synthesizers is extremely important for laser physics problems, primarily for absolute frequency measurements. Numerous technical solutions for these purposes are known, but specific requirements, including the absence of jumps in the switching of the control code and the smoothness of the phase change of the generated signal, make it necessary to abandon the use of most known technical means for these purposes and develop individual devices based on new technical solutions. To the greatest extent these requirements are met by synthesizers on the basis of a method combining phase auto-tuning and frequency summation. The accuracy of such synthesizers is enhanced by the addition of identical blocks, which are seen as extremely simple. However, as it turns out, these blocks are still quite complex. Therefore, their addition is associated with a noticeable rise in price. This paper offers a new original solution to this problem by developing such refinement blocks that do not contain phase-locked loop subsystems. The synthesizer contains a simple block generating only two reference frequencies, several identical blocks containing synchronized switches, frequency adders, frequency dividers and filters, and the technical requirements for all these nodes are extremely simple. High characteristics of the device as a whole are achieved due to the organization of the signal conversion algorithm in it. The chosen frequency ratios greatly simplify the filters. The theoretical substantiation of the working capacity of all technical solutions, confirmed by modeling, is given, as well as the functional scheme of the synthesizer.