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10 May 1990

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Displaying Results 1 - 8 of 8
  • Plessey Design Modelling System

    Publication Year: 1990, Page(s):2/1 - 2/7
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (212 KB)

    The market for Mixed Analog and Digital ASICs is of major importance to Plessey Semiconductors. A high level of design expertise has been built up to support this business sector. Traditionally Mixed Signal design has been carried out on a `Turnkey' basis. This is due to the difficulty of designing analog circuits at component level. Funding this requires that a relatively high development charge ... View full abstract»

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  • Specification driven synthesis of CMOS op-amps

    Publication Year: 1990, Page(s):3/1 - 3/4
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (212 KB)

    Describes a suite of programs that calculate the sizes of the transistors in CMOS operational amplifiers for a given performance specification. The aim is to reduce the role of simulation to that of a simple check to characterize the amplifier. To make this possible the authors have developed ways to introduce parasitic components into the synthesis. The sizing programs make an initial estimate of... View full abstract»

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  • The testing of mixed analogue/digital customised circuits

    Publication Year: 1990, Page(s):4/1 - 4/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (136 KB)

    The development of customised circuits has moved the problem of testing a system from the test engineer to the customised chip designer. The experience gained by the designer in producing testable digital customised circuits, could be extended to the `design for testability' of analogue or customised circuits. The costs of providing a measure of testability on the chip can be balanced against the ... View full abstract»

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  • GaAs MSI circuit design for communication systems

    Publication Year: 1990, Page(s):5/1 - 511
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (440 KB)

    Gallium Arsenide (GaAs) technology has been successfully applied to the realisation of switched capacitor (SC) circuits with switching frequencies an order of magnitude above the maximum achieved using CMOS technology. Experimental results which confirm the accurate performance of a second order bandpass filter operating with a 300 MHz switching frequency have been recently achieved. After briefly... View full abstract»

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  • Mixed-mode simulation of oversampled sigma-delta A-D converters

    Publication Year: 1990, Page(s):6/1 - 6/2
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (112 KB)

    The performance of conventional A-D converters is limited by the precision of the analogue components involved, and by second order effects in device characteristics. The circuit-level simulation of A-D converters requires unreasonable CPU time. Most of the computational effort is wasted by the need to model the entire circuit at the device level, including logic devices. The simulation of oversam... View full abstract»

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  • IEE Colloquium on `Analogue VLSI' (Digest No.073)

    Publication Year: 1990
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (200 KB)

    The following topics were dealt with: analogue design; design modelling systems; operational amplifiers; mixed analogue/digital circuits; MSI; simulation View full abstract»

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  • The PDM route to mixed signal IC design

    Publication Year: 1990, Page(s):7/1 - 7/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (164 KB)

    Whilst the digital ASIC has benefitted enormously from advances in simulation and verification tools, similar improvements for mixed signal ASICs have not been forthcoming. To address this problem Plessey have introduced the Plessey Design modelling System PDM. PDM essentially consists of a reconfigurable logic module, analog design tablet, and a PC or workstation. These are used in conjugation wi... View full abstract»

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  • CHIPAIDE: a new approach to analogue integrated circuit design

    Publication Year: 1990, Page(s):1/1 - 111
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (572 KB)

    The prospect of fully automated analogue circuit design by a system whose input is a performance specification and whose output is a mask set, has attracted the attention of researchers for many years, and a few developmental systems are already in existence. The aim of this paper is to describe, necessarily in outline, the CHIPAIDE system currently being developed at Imperial College. Like some o... View full abstract»

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