Sotirios Limotyrakis

Learn More
An analysis of the phase noise in differential and singleended ring oscillators using a time-variant model is presented. An expression for the RMS value of the impulse sensitivity function (ISF) is derived. A closed-form equation for phase noise of ring oscillators is calculated and a lower limit on the phase noise of ring oscillators is shown. Phase noise(More)
Voltage Control Oscillator (VCO) is an integral part of many electronic applications like PLL, clock generation in microprocessors & carrier synthesis in cellular telephones etc. Such applications require different topologies which gives robust high performance. Consequently, VCO design in CMOS technology continues to pose interesting challenges. This paper(More)
Technology advances have made gigabit signal a viable and attractive. A method to design IEEE 1394 based 1GHz Phase Locked Loop (PLL) system as frequency synthesizer with Low Phase Noise is proposed. A complementary LC oscillator is used to generate the 1GHz oscillation frequency and is divided into lower frequency clock by the feedback frequency divider.(More)
  • 1