A Sizing Algorithm for Non-Overlapping Clock Signal Generators

The non-overlapping clock signal generator circuits are key elements in switched capacitor circuits since non-overlapping clock signals are generally required. Non-overlapping clock signals means signals running at the same frequency and there is a time between the pulses that none of them is high....

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Bibliographic Details
Main Author: Kavak, Fatih
Format: Others
Language:English
Published: Linköpings universitet, Institutionen för systemteknik 2004
Subjects:
PLL
DLL
Online Access:http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2416
Description
Summary:The non-overlapping clock signal generator circuits are key elements in switched capacitor circuits since non-overlapping clock signals are generally required. Non-overlapping clock signals means signals running at the same frequency and there is a time between the pulses that none of them is high. This time (when both pulses are logic 0) takes place when the pulses are switching from logic 1 to logic 0 or from logic 0 to logic 1. In this thesis this type of clock signal generators are analyzed and designed for different requirements on the switched capacitor (S/C) circuits. Different analytical models for the delay in CMOS inverters are studied. The clock generators for digital circuits based on phase-locked loop and delay-locked loop are also studied. An algorithm, which can automatically size the non-overlapping clock generator circuits, was implemented.