By Taoufik Bourdi
During this ebook, the authors define special layout method for speedy frequency hopping synthesizers for RF and instant communications functions. there's nice emphasis on fractional-N delta-sigma established section locked loops from requirements, approach research and structure making plans to circuit layout and silicon implementation. The constructed concepts within the ebook can assist in designing very low noise, excessive velocity fractional-N frequency synthesizers.
Read or Download CMOS Single Chip Fast Frequency Hopping Synthesizers for Wireless Multi-Gigahertz Applications: Design Methodology, Analysis, and Implementation (Analog Circuits and Signal Processing) PDF
Similar microwaves books
Introducing the applying of box impact Transistors (FET) as frequency multipliers and harmonic oscillators, this article places emphasis on nonlinear innovations, and incorporates a minimum volume of arithmetic and a mix of idea and experimentation. It goals to assist microwave and millimeter-wave engineers understand the basic recommendations and layout ideas of frequency multipliers and harmonic oscillators.
Coding for Optical ChannelsIvan DjordjevicWilliam RyanBane VasicIn order to evolve to the ever-increasing calls for for high-speed transmission and distance-independent connectivity, today’s community operators are imposing a hundred Gb/s in step with dense wavelength department multiplexing (DWDM) channel. At these information premiums, the functionality of fiber-optic conversation structures is degraded considerably as a result of intra- and inter-channel fiber nonlinearities, polarization-mode dispersion (PMD), and chromatic dispersion.
This prolonged and revised version will function a concise, self-contained, up to date creation to Photonics for undergraduate scholars. it may well even be used as a primer by means of researchers and execs who begin operating within the box. mixing thought with technical descriptions, the booklet covers quite a lot of issues, together with the final mechanism of laser motion, non-stop and pulsed laser operation, optical propagation in isotropic and anisotropic media, working ideas and constitution of passive optical parts, electro-optic and acousto-optic modulation, solid-state lasers, semiconductor lasers and LEDs, nonlinear optical phenomena, and optical fiber parts and units.
This publication is quantity III of a chain of books on silicon photonics. It studies at the improvement of totally built-in platforms the place many alternative photonics part are built-in jointly to construct advanced circuits. this is often the demonstration of the totally potentiality of silicon photonics. It includes a variety of chapters written through engineers and scientists of the most businesses, learn facilities and universities energetic within the box.
- Dielectric Resonators
- Energy Efficient Smart Phones for 5G Networks
- Multi-Carrier Spread Spectrum 2007: Proceedings from the 6th International Workshop on Multi-Carrier Spread Spectrum, May 2007,Herrsching, Germany (Lecture Notes Electrical Engineering)
- Microwaves in Organic Synthesis, Second Edition
- Nonuniform Line Microstrip Directional Couplers and Filters
Extra resources for CMOS Single Chip Fast Frequency Hopping Synthesizers for Wireless Multi-Gigahertz Applications: Design Methodology, Analysis, and Implementation (Analog Circuits and Signal Processing)
It can be seen from Figure 3-6 that the gain drops to 1 (0 dB) at the specified LBW frequency (100 kHz) and the phase is at its peak of í124o which corresponds to a phase margin of 56o (180o–124o). The loop filter transfer function Z(s) is also plotted in Figure 3-8. The gain of Z(s) shows the change in the 20 dB/decade slope for fp /10 (10 kHz) and 10fp (1 MHz). 23 Phase-Locked Loop Frequency Synthesizers Open-Loop Gain Transfer Function 200 100 20log Aol (f) 0 100 200 100 3 1 10 4 1 10 5 f 1 10 6 1 10 6 1 10 1 10 7 Opn-Loop Phase Transfer Function 100 120 180 arg (Aol (f)) 140 S 160 180 100 3 1 10 4 1 10 5 f 1 10 1 10 Figure 3-6.
The divider adds '6 noise to the frequency variable then divides the sum by the average divide ratio. The simulation results obtained in this chapter and measured results of subblocks of the chip designed in chapter 5 contribute to the optimum design and implementation of fractional-N synthesizers presented in chapters 5 and 6. 2 PHASE-DOMAIN MODEL Figure 4-1 shows a block diagram of a '6-based fractional-N synthesizer. 11a frequencies that will be described in chapter 5. However, for simplicity, Figure 4-1 shows the synthesized frequency to be two-thirds of the desired frequency.
11a bands. The CadenceTM model of this synthesizer is shown in Figure 4-2. The PLL model is a phase-domain model; in steady state, the VCO model generates a ramp instead of an oscillatory voltage (voltage-domain model). Figure 4-1. A Conventional '6-Based Fractional-N Frequency Synthesizer Tuning Curve PFD/CP LUT ) 40 MHz = 40V Integrator ³ CP Divider '6 MMD Frequency VCO Frequency Figure 4-2. Phase-Domain Model of the Synthesizer VCO phase System Simulation of '6 -Based Fractional-N Synthesizers 47 The purpose of behavioral modeling of the fractional-N '6-based PLL is to check for performance limitations, identify dominant noise sources, automate loop filter optimization, and generate PFD/CP linearity specifications.