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Abstract
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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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
Bulletin of the Polish Academy of Sciences-Technical Sciences
no. 62,
edition 1,
pages 61 - 68,
ISSN: 0239-7528 - Language:
- English
- Publication year:
- 2014
- Bibliographic description:
- 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
- Verified by:
- Gdańsk University of Technology
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