Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

1.1 Background Moore’s Law predicts a decrease by a factor of two in the feature size of CMOS te- nology every three years and has been valid for years. It implies a doubling of the - eration speed and a four times higher transistor count per unit of area, every three years. The combination leads to an eight times higher processing capability per unit of area. This on-going miniaturization allows the integration of complex electronic systems with millions of transistors (Very-Large-Scale-Integration) and enables the integration of el- tronic systems. An electronic system A generic picture of an integrated electronic system is shown in ?g. 1.1. The heart of the system is the signal processing core. This core supports a wide variety of functions, such as customization and programmability of multiple applications, channel coding, the de?nition of the user interface, etc. These functions are enabled by DSP, a controller CPU and various blocks of memory. In advanced ICs these blocks provide (almost) all signal processing and usually dominate in the overall power and area consumption of integrated systems. The huge data rates involved, require high-speed busses for communication between these blocks. A power-management unit fuels the system by providing the - propriate supply voltages and currents.

Wireless communication systems. --- Digital communications. --- Communications, Digital --- Digital transmission --- Pulse communication --- Digital electronics --- Pulse techniques (Electronics) --- Telecommunication --- Digital media --- Signal processing --- Communication systems, Wireless --- Wireless data communication systems --- Wireless information networks --- Wireless telecommunication systems --- Telecommunication systems --- Digital techniques

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Switched capacitor (SC) techniques are well proven to be excellent candidates for implementing critical analogue functions with high accuracy, surpassing other analogue techniques when embedded in mixed-signal CMOS VLSI. Conventional SC circuits are primarily limited in accuracy by a) capacitor matching and b) the accuracy with which a differential amplifier can squeeze charge from one capacitor to another between clock periods. In Switched-Capacitor Techniques for High-Accuracy Filter and ADC Design, alternative SC techniques are proposed which allow the achievement of higher intrinsic analogue functional accuracy than previously possible in such application areas as analogue filter and ADC design. The design philosophy is to create the required functionality without relying on digital calibration or correction means but instead to develop methods which have reduced dependence on both component matching (especially capacitor matching) and parasitic effects (especially parasitic capacitance). However, the proposed techniques are just as amenable to further digital accuracy enhancement via calibration and/or correction as traditional methods. Two popular application areas are explored in the course of this book for exploitation of the proposed techniques, viz. SC filters and algorithmic ADCs - both cyclic and pipelined. Furthermore, efficient system level design procedures are explored in each of these two areas. The validity of the concepts developed and analyzed in Switched-Capacitor Techniques for High-Accuracy Filter and ADC Design has been demonstrated in practice with the design of CMOS SC bandpass filters and algorithmic ADC stages. For example, a 10.7MHz radio IF selectivity filter integrated in standard CMOS, employing the proposed methods, achieves an accuracy greater than ceramic filters. Another example is an ADC with better than 12-bit intrinsic accuracy, albeit capacitors with only 9-bits matching accuracy were used in the realization. The ADC architecture is also very robust and proven in an embedded digital VLSI application in the very newest 65nm CMOS. The power consumptions and silicon areas of the solutions proposed here are lower than other known solutions from the literature.

Analog-to-digital converters --- Electric filters. --- Switched capacitor circuits. --- Design and construction. --- Electric wave filters --- Electronic filters --- Wave filters, Electric --- Electric circuits --- Electric networks --- Signal theory (Telecommunication) --- Analog-digital converters --- Analog electronic systems --- Computer input-output equipment --- Digital electronics --- Electronic data processing --- Capacitor circuits, Switched --- Electronic circuits --- Systems engineering. --- Electronics. --- Computer engineering. --- Circuits and Systems. --- Electronics and Microelectronics, Instrumentation. --- Electrical Engineering. --- Computers --- Electrical engineering --- Physical sciences --- Engineering systems --- System engineering --- Engineering --- Industrial engineering --- System analysis --- Design and construction --- Electronic circuits. --- Microelectronics. --- Electrical engineering. --- Electric engineering --- Microminiature electronic equipment --- Microminiaturization (Electronics) --- Electronics --- Microtechnology --- Semiconductors --- Miniature electronic equipment --- Electron-tube circuits --- Electron tubes

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Sigma Delta converters are a very popular choice for the A/D converter in multi-standard, mobile and cellular receivers. Key A/D converter specifications are high dynamic range, robustness, scalability, low-power and low EMI. Robust Sigma Delta Converters presents a requirement derivation of a Sigma Delta modulator applied in a receiver for cellular and connectivity, and shows trade-offs between RF and ADC. The book proposes to categorize these requirements in 5 quality indicators which can be used to qualify a system, namely accuracy, robustness, flexibility, efficiency and emission. In the book these quality indicators are used to categorize Sigma Delta converter theory. A few highlights on each of these quality indicators are; Quality indicators: provide a means to quantify system quality. Accuracy: introduction of new Sigma Delta Modulator architectures. Robustness: a significant extension on clock jitter theory based on phase and error amplitude error models. Extension of the theory describing aliasing in Sigma Delta converters for different types of DACs in the feedback loop. Flexibility: introduction of a Sigma Delta converter bandwidth scaling theory leading to very flexible Sigma Delta converters. Efficiency: introduction of new Figure-of-Merits which better reflect performance-power trade-offs. Emission: analysis of Sigma Delta modulators on emission is not part of the book The quality indicators also reveal that, to exploit nowadays advanced IC technologies, things should be done as much as possible digital up to a limit where system optimization allows reducing system margins. At the end of the book Sigma Delta converter implementations are shown which are digitized on application-, architecture-, circuit- and layout-level. Robust Sigma Delta Converters is written under the assumption that the reader has some background in receivers and in A/D conversion.

Data transmission systems. --- Engineering. --- Signal processing. --- Systems engineering. --- Analog-to-digital converters --- Line receivers (Integrated circuits) --- Data transmission systems --- Systems engineering --- Electrical & Computer Engineering --- Engineering & Applied Sciences --- Electrical Engineering --- Design and construction --- Analog-to-digital converters. --- Modulators (Electronics) --- Analog-digital converters --- Input-output equipment (Computers). --- Solid state physics. --- Electronic circuits. --- Circuits and Systems. --- Solid State Physics. --- Input/Output and Data Communications. --- Modulation (Electronics) --- Pulse circuits --- Radio --- Analog electronic systems --- Computer input-output equipment --- Digital electronics --- Electronic data processing --- Transmitters and transmission --- Data communication systems --- Transmission of data --- Digital communications --- Electronic systems --- Information theory --- Telecommunication systems --- Engineering systems --- System engineering --- Engineering --- Industrial engineering --- System analysis --- Computer hardware --- Computer I/O equipment --- Computers --- Electronic analog computers --- Electronic digital computers --- Hardware, Computer --- I/O equipment (Computers) --- Input equipment (Computers) --- Input-output equipment (Computers) --- Output equipment (Computers) --- Computer systems --- Physics --- Solids --- Electron-tube circuits --- Electric circuits --- Electron tubes --- Electronics --- Input-output equipment

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This book discusses a number of challenges faced by designers of wireless receivers, given complications caused by the shrinking of electronic and mobile devices circuitry into ever-smaller sizes and the resulting complications on the manufacturability, production yield, and the end price of the products.  The authors describe the impact of process technology on the performance of the end product and equip RF designers with countermeasures to cope with such problems.  The mechanisms by which these problems arise are analyzed in detail and novel solutions are provided, including design guidelines for receivers with robustness to process variations and details of circuit blocks that obtain the required performance level. Describes RF receiver frontends and their building blocks from a system- and circuit-level perspective; Provides system-level analysis of a generic RF receiver frontend with robustness to process variations; Includes details of CMOS circuit design at 60GHz and reconfigurable circuits at 60GHz; Covers millimeter-wave circuit design with robustness to process variations.

Metal oxide semiconductors, Complementary. --- Radio -- Receivers and reception -- Design and construction. --- Radio -- Transmitter-receivers. --- Radio frequency integrated circuits. --- Radio --- Radio frequency integrated circuits --- Metal oxide semiconductors, Complementary --- Electrical & Computer Engineering --- Engineering & Applied Sciences --- Electrical Engineering --- Telecommunications --- Design and construction --- Receivers and reception --- Transmitter-receivers --- Wireless communication systems. --- Data transmission systems. --- Data communication systems --- Transmission of data --- Communication systems, Wireless --- Wireless data communication systems --- Wireless information networks --- Wireless telecommunication systems --- Engineering. --- Electronics. --- Microelectronics. --- Electronic circuits. --- Circuits and Systems. --- Electronics and Microelectronics, Instrumentation. --- Electron-tube circuits --- Electric circuits --- Electron tubes --- Electronics --- Microminiature electronic equipment --- Microminiaturization (Electronics) --- Microtechnology --- Semiconductors --- Miniature electronic equipment --- Electrical engineering --- Physical sciences --- Construction --- Industrial arts --- Technology --- Digital communications --- Electronic data processing --- Electronic systems --- Information theory --- Telecommunication systems --- Systems engineering. --- Engineering systems --- System engineering --- Engineering --- Industrial engineering --- System analysis

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This book describes a novel digital calibration technique called dynamic-mismatch mapping (DMM) to improve the performance of digital to analog converters (DACs).  Compared to other techniques, the DMM technique has the advantage of calibrating all mismatch errors without any noise penalty, which is particularly useful in order to meet the demand for high performance DACs in rapidly developing applications, such as multimedia and communication systems.   ·         Discusses fundamental performance limitations of digital to analog converters and summarizes existing design/calibration techniques; ·         Introduces a novel digital calibration technique, called dynamic-mismatch mapping (DMM) to improve both static and dynamic performance of DACs; ·         Includes two state-of-the-art DAC design examples with in-depth discussion.

Digital-to-analog converters. --- Electronics. --- Systems engineering. --- Digital-to-analog converters --- Electrical & Computer Engineering --- Engineering & Applied Sciences --- Electrical Engineering --- Mappings (Mathematics) --- Engineering systems --- System engineering --- Maps (Mathematics) --- Converters, Digital-to-analog --- Design and construction --- Engineering. --- Microelectronics. --- Electronic circuits. --- Circuits and Systems. --- Electronics and Microelectronics, Instrumentation. --- Signal, Image and Speech Processing. --- Electron-tube circuits --- Electric circuits --- Electron tubes --- Electronics --- Microminiature electronic equipment --- Microminiaturization (Electronics) --- Microtechnology --- Semiconductors --- Miniature electronic equipment --- Electrical engineering --- Physical sciences --- Construction --- Industrial arts --- Technology --- Engineering --- Industrial engineering --- System analysis --- Functions --- Functions, Continuous --- Topology --- Transformations (Mathematics) --- Digital electronics --- Hybrid computers --- Signal processing. --- Image processing. --- Speech processing systems. --- Computational linguistics --- Electronic systems --- Information theory --- Modulation theory --- Oral communication --- Speech --- Telecommunication --- Singing voice synthesizers --- Pictorial data processing --- Picture processing --- Processing, Image --- Imaging systems --- Optical data processing --- Processing, Signal --- Information measurement --- Signal theory (Telecommunication)