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Implementering av höghastighetsgränssnitt i 0,15 µm halvledarprocess
Linköping University, Department of Electrical Engineering.
2002 (Swedish)Independent thesis Basic level (professional degree)Student thesisAlternative title
Implementation of high speed interface in 0,15 µm semiconductor process (English)
Abstract [en]

This study investigated the possibility of implementing three standards, Transistion Minimized Differential Signaling (TMDS) and two versions of Stub Series Terminated Logic (SSTL), for inter-chip communication in a specific manufacturing process. The two SSTL standards were implemented in one transceiver system while TMDS was implemented in a separate system. The evaluation was done with Spice simulations on schematic level with some parasitic capacitance and resistance. The idea was to investigate the possibility of implementing these standards and get an idea of eventual shortcomings. In order to create models as a basis for evaluation, simulation environments with models for circuit board and packages were created and transmitters and receivers were designed. During verification, variations in the process and different conditions as temperatureand voltages were considered. Some simplifications were made. All resistors have been assumed ideal and so have bias currents and bias voltages. Further more, parasitics from wires and other objects were missing due to the fact that the netlists came from electrical design and were not extracted from layout. The results showed that it is possible to implement SSTL in the desired semiconductor process. And so is the TMDS receiver. However some questions about the TMDS transmitter remain. Firstly, I see no theoretical possibility to get as short rise and fall time, with the specified load, as stated in the standard. Secondly, the opening in the eye diagram is large and has a good margin but when designing a TMDS transmitter one has to be careful in order to avoid overshoot. Apart from that, package and circuitboard has to be chosen so that they do not limit the system.

Place, publisher, year, edition, pages
Institutionen för systemteknik , 2002.
LiTH-ISY-Ex, 3353
Keyword [en]
Electronics, I/O, gränssnitt, differentiell, seriell
Keyword [sv]
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:liu:diva-1411OAI: diva2:18735
Available from: 2002-11-08 Created: 2002-11-08

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