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Low-Voltage CMOS RF Frequency Synthesizers

2004-08-26 Technology & Engineering
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Release : 2004-08-26
Genre : Technology & Engineering
Kind : eBook
Book Rating : 579/5 ( reviews)

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Book Synopsis Low-Voltage CMOS RF Frequency Synthesizers by : Howard Cam Luong

Download or read book Low-Voltage CMOS RF Frequency Synthesizers written by Howard Cam Luong. This book was released on 2004-08-26. Available in PDF, EPUB and Kindle. Book excerpt: A frequency synthesizer is one of the most critical building blocks in any wireless transceiver system. Its design is getting more and more challenging as the demand for low-voltage low-power high-frequency wireless systems continuously grows. As the supply voltage is decreased, many existing design techniques are no longer applicable. This book provides the reader with architectures and design techniques to enable CMOS frequency synthesizers to operate at low supply voltage at high frequency with good phase noise and low power consumption. In addition to updating the reader on many of these techniques in depth, this book will also introduce useful guidelines and step-by-step procedure on behaviour simulations of frequency synthesizers. Finally, three successfully demonstrated CMOS synthesizer prototypes with detailed design consideration and description will be elaborated to illustrate potential applications of the architectures and design techniques described. For engineers, managers and researchers working in radio-frequency integrated-circuit design for wireless applications.

Low Voltage CMOS Frequency Synthesizers for RF Applications

2005
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Release : 2005
Genre :
Kind : eBook
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Book Synopsis Low Voltage CMOS Frequency Synthesizers for RF Applications by : Hyung-Seuk Kim

Download or read book Low Voltage CMOS Frequency Synthesizers for RF Applications written by Hyung-Seuk Kim. This book was released on 2005. Available in PDF, EPUB and Kindle. Book excerpt: "Frequency synthesizers play an important role in modern communications and timing systems. The output of frequency synthesizers may be used as the local oscillator signal in superheterodyne transceivers, or in frequency modulation/demodulation. Fully integrated CMOS RF synthesizers are currently a major research topic. Several publications demonstrated improvements in a variety of aspects such as phase noise, power consumption, and tuning range. However, very low voltage frequency synthesizers are very challenging, since they usually have a limited tuning range and a relatively high phase noise. This research work demonstrates a new architecture to achieve a wide tuning range and low phase noise from a very low voltage supply. The synthesizer is fully integrated in a 0.18 mum CMOS technology covering the 5 GHz WLAN frequency range, requiring only a 1-V power supply. The second part of this thesis consists of the implementation of a 2.4-GHz fractional-N frequency synthesizer to be compatible with two MEMS resonators that resonate at 20-MHz and 70-MHz." --

Low-voltage CMOS RF Frequency Synthesizers

2004 Frequency synthesizers
Download Low-voltage CMOS RF Frequency Synthesizers PDF Online Free

Author :
Release : 2004
Genre : Frequency synthesizers
Kind : eBook
Book Rating : 936/5 ( reviews)

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Book Synopsis Low-voltage CMOS RF Frequency Synthesizers by : Howard Cam Luong

Download or read book Low-voltage CMOS RF Frequency Synthesizers written by Howard Cam Luong. This book was released on 2004. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the reader with architectures and design techniques to enable CMOS frequency synthesizers to operate at low supply voltage at high-frequency with good phase noise and low power consumption. For engineers, managers and researchers working in RFIC design for wireless applications.

CMOS PLL Synthesizers: Analysis and Design

2006-01-20 Technology & Engineering
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Release : 2006-01-20
Genre : Technology & Engineering
Kind : eBook
Book Rating : 694/5 ( reviews)

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Book Synopsis CMOS PLL Synthesizers: Analysis and Design by : Keliu Shu

Download or read book CMOS PLL Synthesizers: Analysis and Design written by Keliu Shu. This book was released on 2006-01-20. Available in PDF, EPUB and Kindle. Book excerpt: Thanks to the advance of semiconductor and communication technology, the wireless communication market has been booming in the last two decades. It evolved from simple pagers to emerging third-generation (3G) cellular phones. In the meanwhile, broadband communication market has also gained a rapid growth. As the market always demands hi- performance and low-cost products, circuit designers are seeking hi- integration communication devices in cheap CMOS technology. The phase-locked loop frequency synthesizer is a critical component in communication devices. It works as a local oscillator for frequency translation and channel selection in wireless transceivers and broadband cable tuners. It also plays an important role as the clock synthesizer for data converters in the analog-and-digital signal interface. This book covers the design and analysis of PLL synthesizers. It includes both fundamentals and a review of the state-of-the-art techniques. The transient analysis of the third-order charge-pump PLL reveals its locking behavior accurately. The behavioral-level simulation of PLL further clarifies its stability limit. Design examples are given to clearly illustrate the design procedure of PLL synthesizers. A complete derivation of reference spurs in the charge-pump PLL is also presented in this book. The in-depth investigation of the digital CA modulator for fractional-N synthesizers provides insightful design guidelines for this important block.

Integrated RF CMOS Frequency Synthesizers and Oscillators for Wireless Applications

2004 Frequency synthesizers
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Release : 2004
Genre : Frequency synthesizers
Kind : eBook
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Book Synopsis Integrated RF CMOS Frequency Synthesizers and Oscillators for Wireless Applications by : Adem Aktas

Download or read book Integrated RF CMOS Frequency Synthesizers and Oscillators for Wireless Applications written by Adem Aktas. This book was released on 2004. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: PLL (Phase-Locked Loop) frequency synthesizers are used in wireless transceivers for frequency conversion. Recent directions in PLL frequency synthesizer research and development are to fully integrate PLL synthesizers in CMOS technology, to improve phase noise performance, and to operate wide range of frequency bands and channel bandwidths. Fully integration of synthesizers in CMOS technology is desired for low cost, low power consumption and small size in mobile wireless terminals. Low phase noise is required by digital modulation techniques which have been used in new mobile standards for the efficient use of the frequency spectrum. Operation over a wide range of frequency bands and channel bandwidths are required to support migration and backward compatibility in the wireless standard evolution. This work investigates the PLL frequency synthesizer design and implementation in CMOS technology with focus on integration of wideband VCOs (Voltage-Controlled Oscillators). Phase noise of a PLL synthesizer is a major design parameter. A PLL noise model is developed for noise optimization purposes. Wideband RF VCO design with sub-bands is investigated. Frequency planning, synthesizer architecture and technology considerations are also explored for wideband VCO design. Band switching techniques VCO tuning range presented. Active VCO circuit topologies and resonator design are also presented. The PLL frequency synthesizers are designed and implemented for a multi-band/standard(IEEE 802.11a/b/g) WLAN radio in 0.18um CMOS. Phase noise trade-offs for PLL design are explored in this application. Development and design of a wideband VCO for this application is also presented. An auto calibration circuit is developed for VCO tuning band selection. Another application of the wideband PLL frequency synthesizer is designed and implemented for a fully integrated dual-mode frequency synthesizer for GSM and WCDMA standards in 0.5um CMOS. A hybrid integer-N/fractional-N architecture is developed to meet the multi-standard requirements. Design and implementation of high performance RF VCO depends on the RF models of the devices. RF CMOS characterization and modeling techniques are explored. Microwave wafer measurement and calibration techniques are also investigated for CMOS technology.

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