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Ultima descărcare din IBN: 2023-01-17 15:58 |
Căutarea după subiecte similare conform CZU |
004.318+621.37/.39 (1) |
Construcția calculatoarelor. Hardware (30) |
Electrotehnică (1146) |
SM ISO690:2012 KINASH, A., MAKAREVICH, A., TOKAR, M.S., CHUBAROV, V.. Voltage controlled oscillator for digital synchronization systems. In: Materials Science and Condensed Matter Physics, Ed. 9, 25-28 septembrie 2018, Chișinău. Chișinău, Republica Moldova: Institutul de Fizică Aplicată, 2018, Ediția 9, p. 180. |
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Materials Science and Condensed Matter Physics Ediția 9, 2018 |
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Conferința "International Conference on Materials Science and Condensed Matter Physics" 9, Chișinău, Moldova, 25-28 septembrie 2018 | |||||
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CZU: 004.318+621.37/.39 | |||||
Pag. 180-180 | |||||
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Rezumat | |||||
In the research, we analyze and summarize the results of circuit simulation for several variants of the construction of synchronizing devices components, implemented within the framework of classical CMOS technology and circuit technology. The implementation of the proposed solutions on CMOS transistors with submicron design rules will require only the usage of new transistor models, which parameters are determined by a group of technological operations of their manufacturing process and inherent structural and technological limitations. In our work, we consider mainly the previously known and some improved versions of the components of the PLL systems [1] intended for use in the nodes and blocks of the DSS. The results are obtained by simulation in the LTSpice package using the characteristics of CMOS devices and blocks with micron and submicron element sizes. The model parameters of the transistors were originally set up on a standard manufacturing process of CMOS LSI with a design rule of a few microns. The initial data with parameters of submicron transistor models (design standards 90 and 45 nm) were taken by us on the official website of the company Microwind [2]. The type of used model level = 3. As a result of the simulation, we obtained a stable operating voltage controlled oscillator (VCO) in the range of operating voltage Vcc from 0.6 to 2.0 volts. The final results of the studies of the change in the oscillation frequency of the VCO from the nominal value of the operating supply voltage Vcc and, partially, from the control voltage Vc are shown in the following table. The results show that the proposed VCO may well work in PLL systems [3, 4] to maintain synchronous operation of receivers and transmitters in high-speed data networks. |
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