A low phase noise integrated SiGe 18..20 GHz fractional-N synthesizer
| Autor: | R. Follmann, D. Kother, T. Kohl, M. Engels, V. Heyer, K. Schmalz, F. Herzel, W. Winkler, S. Osmany, U. Jagdhold |
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| Rok vydání: | 2007 |
| Předmět: |
Engineering
High-definition television business.industry Local oscillator Electrical engineering Mixed-signal integrated circuit Hardware_PERFORMANCEANDRELIABILITY Phase-locked loop Voltage-controlled oscillator CMOS Phase noise Hardware_INTEGRATEDCIRCUITS Electronic engineering business Monolithic microwave integrated circuit |
| Zdroj: | 2007 European Microwave Integrated Circuit Conference. |
| DOI: | 10.1109/emicc.2007.4412699 |
| Popis: | The communication market demands broadband transmission, high density television (HDTV) and interactivity, whereby HDTV will become the leading application. All applications require a high number of individual channels, leading to a large number of up-and down-converters. These high needs can be served best with highly integrated SiGe MMICs. It has been demonstrated that the best suited RF-element to be developed is the Local Oscillator (LO) synthesizer, which fits well to the SiGe technology. The most critical building blocks of the LO are the voltage controlled oscillator (VCO) which is challenging in its phase noise behavior and the fractional-iN divider with its large influence on phase noise and spurs. This paper will describe the flexible design of a MMIC, which can be used also as a PLL circuit together with an external oscillator in a broad frequency range. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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