The modeling, design and implementation of monolithic distributed RC networks for the MOS technology are described. The proposed design method guarantees a fast, and process-insensitive layout and the maximum yield wi...
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The modeling, design and implementation of monolithic distributed RC networks for the MOS technology are described. The proposed design method guarantees a fast, and process-insensitive layout and the maximum yield within a given process window. The procedure is demonstrated on an anti-aliasing/smoothing low-pass filter used in PCM channel bank filters.
The authors describe a new logic synthesis system for interactive and hierarchical VLSI logic design. This system, called FOX, allows designers to build circuits with functional level entities (register, decoder,. . ....
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The authors describe a new logic synthesis system for interactive and hierarchical VLSI logic design. This system, called FOX, allows designers to build circuits with functional level entities (register, decoder,. . . ), and can synthesize the optimized gate-level circuits that depend on target VLSI technology. FOX can also supply an interactive hierarchical design environment for logic designers. FOX has been used to designelectronic switching systems and processors, among many others.
The authors present a systematic study of the generation, classification and design of stray-insensitive single operational-amplifier (OA) switched-capacitor (SC) networks. The method leads to general structures witho...
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The authors present a systematic study of the generation, classification and design of stray-insensitive single operational-amplifier (OA) switched-capacitor (SC) networks. The method leads to general structures without redundant elements. The complete set of networks is then separated in two major classes. For each class all realizable transfer functions are determined, as well as the best ways to implement them. A design example is presented. The new circuits obtained compare favorably with previously reported realizations.
A versatile phase-compensated inverting integrator circuit is presented. The circuit, which uses two op-amps, is versatile in the sense that, unlike existing compensated integrators, it provides compensation at each o...
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A versatile phase-compensated inverting integrator circuit is presented. The circuit, which uses two op-amps, is versatile in the sense that, unlike existing compensated integrators, it provides compensation at each op-amp output. Hence, different designs for the same circuit are possible. The design and some applications of the circuit are discussed. The circuit is also designed to correct phase errors in the well-known Tow-Thomas and KHN biquads. Experimental results are found to be in good agreement with the theory.
Several novel, fully differential switched-capacitor all-pass biquad topologies are presented. These topologies, besides offering the well-known noise immunity properties of fully differential circuits, are shown to r...
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Several novel, fully differential switched-capacitor all-pass biquad topologies are presented. These topologies, besides offering the well-known noise immunity properties of fully differential circuits, are shown to require relatively little capacitor area for the realization of higher-Q circuits and to possess superior sensitivity properties. In addition, the new topologies can be readily staggered in a multibiquad filter so that errors due to op amp setting can be minimized. The design techniques used can be extended to all classes of biquadratic notch circuits. Monte Carlo simulations demonstrate the merit of the new circuits.
A direct and analytic method is presented for the design of a diplexer having a Butterworth characteristic at zero and infinite frequencies and any desired insertion loss at crossover frequency. It is shown that a thr...
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A direct and analytic method is presented for the design of a diplexer having a Butterworth characteristic at zero and infinite frequencies and any desired insertion loss at crossover frequency. It is shown that a three-port network exists if and only if the numerator and denominator polynomials of Z//1 (s) and Z//2 (s) are strictly Hurwitz with positive coefficients. Then the problem reduces to that of obtaining a better response using higher order polynomials. In the solution process, the elements of the scattering matrix are determined by solving the unknown coefficients of the numerator and denominator polynomials of input impedances Z//1 (s) and Z//2 (s). This transformation makes the problem solvable.
The design of electroniccircuits with statistical distribution of parameter values and prescribed time-domain output tolerances is considered. The variation of component parameters is due to manufacturing tolerances,...
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The design of electroniccircuits with statistical distribution of parameter values and prescribed time-domain output tolerances is considered. The variation of component parameters is due to manufacturing tolerances, fluctuation in the operating environment or nonlinearities of some elements. In the synthesis method presented, the nonlinear circuit, with its parameter uncertainty, is embedded in a feedback structure. The time-domain tolerances are translated into frequency-domain bounds on the transfer function of the system. The nonlinear circuit is represented by an equivalent linear function with coefficients ranging in bounded intervals, due to the uncertainty and the nonlinearities in the original circuit. The feedback structure is then so designed, as to achieve the imposed performances despite the variation of the component parameter values.
The authors consider operation, classification and design problems of one-comparator multivibrators. These multivibrators are divided in two groups depending on the properties of the switches used in their design. The...
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The authors consider operation, classification and design problems of one-comparator multivibrators. These multivibrators are divided in two groups depending on the properties of the switches used in their design. The switches can be negative or positive depending on whether or not the switch closure requires changing of the polarity of the input control step. If the multivibrator does not match the switch the circuit has high-frequency oscillations (bouncing) at the instants of transition from one quasistable state to another. The multivibrators with high mark/space (space/mark) ratio designed for single power supply operation represent a special subgroup for which the correct switch timing is required as well. Examples of multivibrator designs adapted for different levels of integration are provided.
This conference proceedings contains 130 papers;95 presented at the Electro/85 program and 35 at the mini/micro northeast program. Topics considered are: electrostatic discharge (ESD), medical electronics, high-perfor...
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This conference proceedings contains 130 papers;95 presented at the Electro/85 program and 35 at the mini/micro northeast program. Topics considered are: electrostatic discharge (ESD), medical electronics, high-performance packaging, venture capital entrepreneurship, IC quality and testing, Videotex applications, semi-custom logic, integrated services digital networks (ISDN), direct broadcasting by satellite (DBS), programmable logic ICs, current directions in ligthwave components, digital TV, Specific ICs-vendor/supplier interface, fiber optics systems, hard copy printing, miniature microwave IC (MIC), powering techniques for advanced electronicsystems, flat panel displays, high-speed digital gallium-arsenide circuits, optical data storage, building blocks for high-performance digital systems, high-voltage ICs, system level diagnostics, recent EEPROM advances, tools for real-time software design, MPU/MCU development tool selection, UNIX development and operating environment, personal workstations for electronicdesign, 32-bit microprocessor architecture and microcomputer buses, and high-performance coprocessors and controllers.
The analysis uses a small-signal linear model to investigate the regenerative action of the static flip-flops in their metastable voltage regions. It is shown that the positive real eigenvalue of the state equation de...
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The analysis uses a small-signal linear model to investigate the regenerative action of the static flip-flops in their metastable voltage regions. It is shown that the positive real eigenvalue of the state equation derived from the model characterizes the rate at which the flip-flop resolves a metastable state. To obtain a fast resolving flip-flop, the determined eigenvalue is utilized in the selection of transistor sizes and types. The design method also takes into account a limit on power dissipation. In this way, flip-flops resistant to failure due to metastable operation can be constructed. The design method developed can be easily adapted for CAD applications.
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