A.B. Antilikatorov1, O.N. Chirkov2, S.P. Alekseenko3, S.Yu. Beletskaya4

1-2,4 FSBEI of HE “Voronezh State Technical University” (Voronezh, Russia)

3 Voronezh Institute of the Ministry of Internal Affairs of Russia (Voronezh, Russia)

1 antilikatorov63@mail.ru; 2 chir_oleg@mail.ru; 3 aleks_serg@mail.ru; 4 su_bel@mail.ru

Problem statement. When designing printed circuit boards (PCBs) with high-speed digital interfaces, a number of critical tasks arise related to ensuring signal integrity, minimizing reflections and cross interference, as well as accurate impedance matching and trace length control. A comprehensive approach is required to maintain reliable high-speed data transmission with minimal loss. The task is further complicated by the need to simultaneously take into account a large number of interrelated parameters: the dielectric properties of the board material, the geometry of the conductors, the layout of the components and the conditions of signal propagation at high frequencies. Traditional design methods focused on low-speed circuits do not allow us to fully predict and eliminate the effects of reflections, crosstalk and skin effect, which can lead to device malfunction at the testing stage. In this regard, a formalized, verifiable design algorithm is required that takes into account the specifics of high-speed interfaces and minimizes signal distortion at the stage of developing the topology of the control system.

Purpose. To present an effective algorithm for designing printed circuit boards with high-speed digital interfaces capable of providing high-speed and minimal loss data transmission.

Results. An effective algorithm for designing software products has been developed, including requirements analysis, material selection, component placement, tracing, and modeling. Using HyperLynx and Altium Designer software products, a board with a DDR3 interface was simulated. The obtained eye diagrams demonstrated sufficient signal disclosure and voltage margin, which confirms the absence of significant distortion. The signal strength meets the requirements of the chips, ensuring reliable data transmission without the risk of errors.

Practical significance. The proposed algorithm will allow developers to systematically approach the design of control systems with high-speed interfaces, reducing the likelihood of errors and increasing the overall reliability of devices. The results of the study confirm the importance of an integrated approach to the design of control systems with high-speed digital interfaces and demonstrate the possibility of using the proposed method to achieve high quality and productivity. The results of the work can be used to create control panels with DDR3, PCI Express, USB and Thunderbolt interfaces to minimize signal loss.

Antilikatorov A.B., Chirkov O.N., Alekseenko S.P., Beletskaya S.Yu. An efficient algorithm for designing printed circuit boards for high-speed digital interfaces // Radiotekhnika. 2026. V. 90. № 7. P. 7−12. DOI: https://doi.org/10.18127/j00338486-202607-01

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