نتایج جستجو برای: digital circuits complex
تعداد نتایج: 1120576 فیلتر نتایج به سال:
We report on a demonstration of GaN digital circuits implemented in a first generation GaN digital technology, which has yielded circuits of considerable complexity. We have implemented simple logic blocks, comparators, ring-oscillators and frequency dividers. We have yielded a 31-stage ring-oscillator using 217 transistors [1]. As a result of unique material characteristics GaN digital control...
Testing of analogue circuits and mixed-mode circuits has recently gained much attention in the literature. The subject covers testing of many different classes of circuits such as A/D and D/A converters, PLLs, amplifiers, TV circuits, telecommunication circuits and many others. Analogue testing is carried out in order to ensure that the circuit performs as expected both in functional terms and ...
An approach to integrated mixed-mode simulation is described in which the popular SPICE circuit simulator is extended to analyze digital circuits at the gate, functional or behavioral levels. The analogue-to-digital conversion is provided by (multilevel) parameterized “thresholders” which assign digital signals to subranges of voltages determined by a set of voltage thresholds. The digitalto-an...
In this paper we have surveyed recent approaches for design of approximate circuits using Evolvable Hardware. We have discussed some challenges faced during evolution of digital circuits. Then we have proposed spatially varying mutation and cross over rates as possible remedy and discussed its superiority on uniform mutation and crossover rate for digital circuits. Keywords—Evolvable hardware, ...
Nature has evolved highly advanced systems capable of performing complex computations, adaptation, and learning using analog components. Although digital systems have significantly surpassed analog systems in terms of performing precise, high speed, mathematical computations, digital systems cannot outperform analog systems in terms of power. Furthermore, nature has evolved techniques to deal w...
This paper presents a novel evolvable hardware framework for the automated design of digital circuits for high performance applications. The technique evolves circuits corresponding to each specific output, under restricted functionality and timing constraints. The individual circuits are then processed to generate the completed circuit. Applications have focused on the design of multi-output a...
The increasing use of mixed signal circuits with analog and digital circuitry on the same lchip have created a set of demands that traditional circuit simuiators cannot meet very well. We pmsent techniques to efficiently handle the simulation of mixed signal analog/digital circuits, a d SYMPHONY , a fast mixed-signal simulator which embodies them. SYMPHONY combines a fast simulator for digital ...
This paper investigates specification and verification of synchronous circuits using DILL (Digital Logic in LOTOS). After an overview of the DILL approach, the paper focuses on the characteristics of synchronous circuits. A more constrained model is presented for specifying digital components and verifying them. Two standard benchmark circuits are specified using this new model, and analysed by...
Genetic circuits, composed of complex networks of interacting molecular machines, enable living systems to sense their dynamic environments, perform computation on the inputs, and formulate appropriate outputs. By rewiring and expanding these circuits with novel parts and modules, synthetic biologists have adapted living systems into vibrant substrates for engineering. Diverse paradigms have em...
Quantum-dot cellular automata (QCA) is a novel nanotechnology that promises smaller size, lower power consumption, with faster speed and is considered as a solution to the scaling problems in complementary metal oxide semiconductor technology. We propose a novel QCA F-shaped XOR gate. The proposed gate is simple in structure and powerful in terms of implementing digital circuits. We implement n...
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