Abstrakt
This paper presents a technique of decoupling differential signals transmitted in a pair of microstrip lines on a printed circuit board (PCB), using dedicated coupler for high speed data transmission monitoring in chip-to-chip interconnections. The coupler used for signal probing is overlayed on the pair of microstrip lines under test, and provides a signal to the next blocks of the measurement system without disturbing transmission in the lines. Starting from the basic configuration obtained in the previous work, we describe a procedure of re-designing the coupler for enhanced directivity so that it is suitable for high-speed data transmission monitoring. The new coupler structure has improved topology based on stepped-impedance resonators with geometry parameters adjusted using numerical optimization techniques. The correctness of the design has been confirmed by the time-domain measurements performed for real chip-to-chip communication signals, using a dedicated measurement system based on Xilinx Virtex-6 FPGA Development Kit. The presented technology can be used for reducing the cost of the product diagnostics by eliminating dedicated measurement connectors, run-time system debugging or reverse engineering.
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- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuł w czasopiśmie wyróżnionym w JCR
- Opublikowano w:
-
Bulletin of the Polish Academy of Sciences-Technical Sciences
nr 62,
wydanie 1,
strony 61 - 68,
ISSN: 0239-7528 - Język:
- angielski
- Rok wydania:
- 2014
- Opis bibliograficzny:
- Zmuda M., Szczepański S., Kozieł S., Graczyk S.: The contactless method of chip-to-chip high-speed data transmission monitoring// Bulletin of the Polish Academy of Sciences-Technical Sciences. -Vol. 62, iss. 1 (2014), s.61-68
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 151 razy
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