Fractional Divider

New Spur Reduction fractional-N Frequency divider
1. INTRODUCTION For frequency synthesis in the GHz range, a fractional-N divider allows PLL Synthesizers to have a frequency resolution finer than … Access Doc

Unusual Frequency Dividers
Frequency divider made from injection locked oscillator. with an ordinary divider and "pulse swallower" to form a fractional-n divider as shown in the following block diagram. D D Q Q CLR Q SET SET /MR /Fin + Fin 4013 9 11 13 8 10 MR CLR MR Fout 4013 6 9 6 6 7 7 12 11 10 12 11 10 … Retrieve Doc

PLL-Based Fractional-N Frequency Synthesizers
Ramp generator based on a fractional divider phase-locked-loop,” IEEE Trans. of Instrumentation and measurement, vol.48, pp. 634-637, April 1999. [21] A. Marques, V. Peluso, M. Steyaert, and W. Sansen, “Optimal … Fetch Full Source

A High Precision Multi-modulus Fractional-N Divider For DAB …
A High Precision Multi-modulus Fractional-N Divider for DAB Receiver Yang Yang, Wang Zhigong+, Tang Lu and Xu Jian Institute of RF- & OE-ICs … Fetch Doc

A Multiple Modulator fractional Divider – Instrumentation And …
578 IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, VOL 40, NO 3. JUNE 1991 A Multiple Modulator Fractional Divider Brian Miller, Member, IEEE, and Robert J. Conley … Read Content

Application Note – Aeroflex Corporation – Aeroflex
Inside the PLL BW the Fractional-N divider is used to manipulate the frequency setting of the synthesizer in sympathy with the required FM signal. The Fractional-N Divider is controlled by applying the analog signal to a third order feedback … Retrieve Document

Multiple Modulus N+1/2 Fractional-N Frequency Divider
Multiple Modulus Fractional-N Frequency Divider . Using N+1/2 Division . C.C. Boon, M.A. Do, K.S. Yeo and J.G. Ma . Division of Circuits and Systems … Content Retrieval

Fractional Divider Evaluation Board AD9858FDPCB
Fractional Divider Evaluation Board AD9858FDPCB Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any … View Doc

Application Note – Aeroflex Corporation – Aeroflex
Inside the PLL BW the Fractional-N divider is used to manipulate the frequency setting of the synthesizer in sympathy with the required FM signal. The Fractional-N Divider is controlled by applying the analog signal to a third order feedback system deployed around a one bit … Retrieve Here

How To Calculate The fractional Divider Value When Using The …
How to calculate the fractional divider value when using the Altera PLL megafunction Introduction This document will describe how the Quartus® II software calculates the PLL Fractional Divison parameter, when using the Altera PLL megafunction in fractional mode. … Read Here

2:8 Clock Generator, Jitter Cleaner With Fractional Dividers
The fractional divider output jitter is a function of fractional divider input frequency and furthermore depends on which bits are exercised within the fractional divider. Exercising only MSB or LSB bits provides better jitter than … Access Content

754 IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 15 …
754 IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 15, NO. 11, NOVEMBER 2005 A Dual-Mode Truly Modular Programmable Fractional Divider Based on a … Visit Document

WHITE PAPER Basics Of Dual Fractional-N Synthesizers/PLLs
A fractional divider output is ideally not time varying. In other words, a rising edge occurs at the output each N and 0.F VCO cycle. The timing diagram in Figure 2 illustrates the operation of a fractional divider where N.F is equal to 2.25. … Fetch Content

12 JAVA Journal Of Electrical And Electronics Engineering …
12 JAVA Journal of Electrical and Electronics Engineering, Vol. 1, No. 1, April 2003 DESIGN OF HIGH FREQUENCY CMOS FRACTIONAL-N FREQUENCY DIVIDER … Get Content Here

Fractional/Integer-N PLL Basics – Analog, Embedded Processing …
So far, we have created a fractional divider. However, rather than generating a smooth N+K/F ratio, it was done in an abrupt manner. This will cause spurious signals in the output. A spurious compensation circuit is added to reduce these spurious signals to a … Retrieve Content

A Low-Voltage, 9-GHz, 0.13-μm CMOS Frequency Synthesizer …
High-frequency fractional divider is implemented by a high-speed phase switching technique for the multi-phase VCO. Using a folded topology with the transformer, the first-stage divider combined with the phase selector can … View Full Source

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS—I: REGULAR PAPERS …
Power consumption for the fractional divider. One way to over-come the speed and power consumption limits is to use the mul-tiphase waveforms of the divider (in Fig. 7), which can maintain the resolution to a fraction of the intrinsic phase spacing but can … Fetch Document