Title :
Analysis of Harmonic Energy Distribution Portfolio for Digital-to-Frequency Converters
Author :
Xiu, Liming ; Huang, Chen-Wei ; Gui, Ping
Author_Institution :
Novatek, Hsinchu, Taiwan
Abstract :
A Digital-to-frequency converter (DFC) based on the concept of time-average frequency and a flying-adder frequency synthesizer is a novel circuit component that enables many system-level innovations. The clock output of the DFC has unique characteristics in both time and frequency domains. In this paper, a study on the energy distribution of the DFC output for a special case is presented. Mathematical analysis is performed, and closed-form expression is derived for this case.
Keywords :
digital-analogue conversion; frequency convertors; frequency synthesizers; time-frequency analysis; DFC; circuit component; closed-form expression; digital-to-frequency converters; flying-adder frequency synthesizer; harmonic energy distribution portfolio; mathematical analysis; system-level innovations; time-average frequency synthesizer; time-frequency domains; Clocks; Frequency synthesizers; Harmonic analysis; Portfolios; Time frequency analysis; Voltage-controlled oscillators; Digital-to-Frequency Converter (DFC); Fourier series; Phase-Locked Loop (PLL); flying adder; frequency synthesis;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2009.2036487
