| 书目名称 | Integrated Video-Frequency Continuous-Time Filters | | 副标题 | High-Performance Rea | | 编辑 | Scott D. Willingham,Ken Martin | | 视频video | | | 丛书名称 | The Springer International Series in Engineering and Computer Science | | 图书封面 |  | | 描述 | Advances in the state of the art mean the signal processing ICsof ever-increasing complexity are being introduced. While the typicalportion of a large IC devoted to analog circuits has diminished, theperformance of those surviving analog signal processing circuitsremains vital and their design challenging. Moreover, the emerginghigh-definition TV technology has created a new area for ICdevelopment, one with formidable signal processing requirements. Theantialiasing filters needed for one proposed HDTV decoder motivatedthe research documented in this book. Sharply selective filters placetight constraints on the permitted excess phase shifts of theirconstituent circuits. Combined with stringent requirements for lowdistortion at video frequencies, these constraints challenge the ICfilter designer. ..Integrated Video-Frequency Continuous-Time Filters:High-Performance. .Realizations in BiCMOS. deals with what isarguably the mainstay of analog signal processing circuits. Prominentapplications in computer disk-drive read channels, video receivers, rfcircuits, and antialiasing and reconstruction in data converterstestifies to their importance. Moreover, they are excellent benchmarksfor mor | | 出版日期 | Book 1995 | | 关键词 | CMOS; MOSFET; Phase; Signal; analog; analog signal processing; circuit; computer; filter; filter design; filte | | 版次 | 1 | | doi | https://doi.org/10.1007/978-1-4615-2347-5 | | isbn_softcover | 978-1-4613-5995-1 | | isbn_ebook | 978-1-4615-2347-5Series ISSN 0893-3405 | | issn_series | 0893-3405 | | copyright | Springer Science+Business Media New York 1995 |
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Front Matter |
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Abstract
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,Analog Filtering in High-Performance Video Systems, |
Scott D. Willingham,Ken Martin |
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Abstract
Fueled by the power and flexibility of digital signal processing techniques, new video systems in both consumer and industrial applications are increasingly making use of high-performance data conversion integrated circuits (ICs). Video-rate analog-to-digital and digital-to-analog converters commonly feature 10-bit resolutions and sampling rates upwards of 18 MHz. Progress in integrated antialiasing filters for such applications has not, however, kept pace. As the demand for low-cost, yet high-performance, video systems grows, such filters could well present a system bottleneck, both in performance and price. Perhaps the most difficult challenge lies in the area of High-Definition Television (HDTV) where superior video image quality is desired while maintaining, as far as practicable, near conventional transmission channel bandwidths. Japan Broadcasting Corporation’s MUSE system, for example, requires antialiasing filters for baseband signals with 8.15 MHz bandwidth and 10-bit linearity [.].
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,Filter Function Approximation Concepts, |
Scott D. Willingham,Ken Martin |
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Abstract
In Chapter 1, we discussed the general performance specifications that bear on the design of continuous-time (CT) filters. In the process, we more specifically outlined the desired attenuation, envelope delay, and nonlinear distortion performance of an antialiasing filter for MUSE decoders, setting the context for our prototype design. Before delving into the details of the physical filter design, this chapter reviews the broader concepts common to all CT lowpass filters realized by time-invariant lumped components.
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,Realization of Integrated Continuous-Time Filters, |
Scott D. Willingham,Ken Martin |
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Abstract
The design process for integrated continuous-time (CT) filters brings together several disciplines including filter and network theory, analog circuit design, and circuit modeling. Consequently, the designer of such a filter must consider issues ranging from IC fabrication technology to filter architecture to circuit-level design. This chapter synopsizes fundamental topics pertaining to the physical realization of integrated CT filters. As in Chapter 2, the scope of all relevant topics is far too broad for a full treatment here. Accordingly, the presentation of topics in this chapter is focused on issues of particular importance to the design of precision video-frequency lowpass filters. For further study of integrated CT filters, see Refs. [.–.].
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,Distortion in Quasilinear Circuits, |
Scott D. Willingham,Ken Martin |
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Abstract
All transistor circuits are nonlinear. That is to say, portions of many of the voltage or current signals in such circuits are not only directly proportional to other signals, but are proportional to the products, squares, and cubes of other signals. A large number of circuits, however, are designed to approximate linear systems; we designate such circuits as .. Linear systems are immensely useful for signal processing and, in the context of the more general class of nonlinear systems, enjoy great simplifications in concept and in mathematical analysis. Linear system theory, with its powerful principle of superposition, offers a lucidity and intuitive power of great value to circuit and system designers. For the most part, the techniques of linear system theory are applicable to quasilinear circuits as well. For precise applications, however, the circuit designer must evaluate the limits of the linear approximation and moreover, must often devise ways to improve a circuit’s conformance to linear operation. The analytical and conceptual tools necessary for such evaluation are the topic of this chapter.
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,Precision High-Frequency Continuous-Time Integrator Circuits in BiCMOS, |
Scott D. Willingham,Ken Martin |
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Abstract
In Chapters 2 through 4, we have considered the broad technological and theoretical aspects of high-performance integrated continuous-time filter design. The theoretical limitations of wave filters and architectural considerations in their design were examined in Chapters 2 and 3 and the modified leapfrog filter topology was demonstrated to be apropos for fixed filter applications. There, it was seen that the summing-integrator subcircuit comprised the core of such an implementation. The operational amplifier-RC integrators illustrating the filter topologies in Chapter 3, however, are unsuitable for video frequency IC filters. In this chapter, we consider the implementation of precision integrators in BiCMOS technology. The success of an IC filter design hinges on such circuit design issues.
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,Realization and Testing of a Prototype Low-Distortion Video Filter, |
Scott D. Willingham,Ken Martin |
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Abstract
This chapter’s introduction is brief since,literally, all the preceding chapters constitute an extended introduction to this chapter’s topic. That topic is the physical realization of an integrated video-frequency lowpass filter with linearity performance commensurate with 10-bit analog-to-digital converters. Seven integrator circuits of the design devepoped in Chapter 5 are assembled to implement the modified leapfrog filter topology presented in Chapter 3[.]. Herein,we bring the final pieces of the design together, clarifying the details of the architecture and choosing component values.We then verify the main performance aspects of the completed filter design using SPICE simulation. Briefly, we examine some of the more critical mask layout considerations thar contribute to a successful realization of the filter. Finally, the empirical results of our engineering effort are presented. Measured test results of the prototype IC filter verify the predictions of earlier simulations,showing excellent performance, and meeting the main goals set for the design. In the closing section, we outline ideas for improvements to the design and for further research.
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Back Matter |
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Abstract
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