Proceedings ArticleDOI
Signal integrity improvement in lossy transmission line using segmental transmission line
TLDR
This paper designs and fabricates an STL prototype, and demonstrates that the eye-diagram distorted in the lossy transmission line is improved dramatically more than twice in its eye-height in the STL.Abstract:
Waveform distortion in lossy transmission lines is getting serious in long traces in PCBs in GHz domain. So far this signal-integrity (SI) degradation problem has been solved with some active devices, such as equalizer, pre-emphasizer or de-emphasizer. These devices however require unnecessary power-consumption, cost, and packaging area. We have proposed a novel PCB trace structure called “Segmental Transmission Line (STL)” already in order to reduce reflection noises in the bus wires. In this paper, we firstly apply the STL to restore the waveforms distorted in the lossy transmission line without the active devices. We design and fabricate an STL prototype, and demonstrate that the eye-diagram distorted in the lossy transmission line is improved dramatically more than twice in its eye-height in the STL.read more
Citations
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Journal ArticleDOI
Evolutionary design of high signal integrity interconnection based on eye-diagram
TL;DR: A novel fitness based on the eye-diagram is proposed, which is widely and generally used for SI evaluation in the high-speed interconnection design field and can reduce the simulation time.
Proceedings ArticleDOI
Signal integrity evaluation of segmental transmission line under real-world application
TL;DR: This paper evaluates the STL from the real-world application view point for the first time, and demonstrates that the STL can transmit much higher quality image-data than the conventional transmission line by not only simulations but by a 500 Mbps STL scale-up prototype.
Proceedings ArticleDOI
Crosstalk-noise reduction in GHz domain using segmental transmission line
TL;DR: In this paper, a trace structure called Segment Transmission Line (STL) is proposed to reduce the crosstalk noise caused by random data signal in GHz domain. But the STL can only reduce the noise in the uniform width trace.
Proceedings ArticleDOI
Self-calibration method for input/output termination resistance variation elimination
TL;DR: In this article, a method of on-die resistance self-calibration for receiver and transmitter Input/Output devices, without external reference resistor, is presented, which provides opportunity to measure the difference of the termination resistor and the transmission line impedance, detect the variation and minimizing it.
Proceedings ArticleDOI
Calibration Mechanism for Input/Output Termination Resistance in 28nm CMOS
TL;DR: This paper presents a method of receiver and transmitter input/output resistance calibration in UMC 28nm CMOS process with high robustness under all PVT conditions, and the maximum deviation is 0.85%.
References
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Genetic algorithms in search, optimization, and machine learning
TL;DR: In this article, the authors present the computer techniques, mathematical tools, and research results that will enable both students and practitioners to apply genetic algorithms to problems in many fields, including computer programming and mathematics.
Proceedings ArticleDOI
A 4-channel 10.3Gb/s transceiver with adaptive phase equalizer for 4-to-41dB loss PCB channel
Yasuo Hidaka,Takeshi Horie,Yoichi Koyanagi,Takashi Miyoshi,Hideki Osone,Samir Parikh,Subodh M. Reddy,Toshiyuki Shibuya,Yasushi Umezawa,William W. Walker +9 more
TL;DR: In this paper, the authors proposed adaptive phase equalization in hardware for IEEE 10Gb Ethernet backplanes with a pre-cursor tap, which produces lower BER over a high-loss PCB channel than a non-minimum-phase equalizer.
Proceedings ArticleDOI
Enhancement of the Variable-Length-Transmission-Line design method for multi-point optimization
TL;DR: A DIMM (dual in-line memory module) clock-line for high-speed computers is designed using the new method to reshape the waveform at two points of the devices at a time, and effectiveness of the method is shown.