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Journal ArticleDOI

Use of bilinear integrator in design of fully differential biquads

23 Oct 1986-Electronics Letters (IET)-Vol. 22, Iss: 22, pp 1203-1205
TL;DR: The design of bilinear integrator in fully differential form introduces new possibilities in the design of biquad circuits as discussed by the authors, and the new circuits presented here have no simple non-differential counterparts, are stray-insensitive, have small sensitivities and require capacitor values in acceptable limits.
Abstract: The design of a bilinear integrator in fully differential form introduces new possibilities in the design of biquad circuits. The new circuits presented here have no simple non-differential counterparts, are stray-insensitive, have small sensitivities and require capacitor values in acceptable limits.
Citations
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Journal ArticleDOI
TL;DR: An optical network with a distribution capacity of 100 HDTV channels is considered along with how such a network can be implemented using the following functional subsystems: frequency converters; transmitter banks; modified WDM demultiplexers; and tunable optical receivers.
Abstract: A number of optical signal processing functions that might be potentially important for future lightwave communication networks are described. An optical network with a distribution capacity of 100 HDTV channels is considered along with how such a network can be implemented using the following functional subsystems: frequency converters; transmitter banks; modified (wavelength division multiplexing) WDM demultiplexers; and tunable optical receivers. Discussed are the key network-level issues: the power budget, the channel separation, and the overall rationale for selection of multiplexing techniques. A hardware implementation of the functional subsystems using three basic building blocks-tunable amplifiers/filters, phase locked loops, and comb generators-is discussed. >

17 citations

Proceedings ArticleDOI
12 Jun 1988
TL;DR: The issues and technology problems specific to multichannel applications of coherent technology are reviewed, such as network topology, loss limitations, laser linewidth requirements and frequency stabilization, polarization issues, local oscillator tuning range, receiver crosstalk performance limits, and levels of integration.
Abstract: The issues and technology problems specific to multichannel applications of coherent technology are reviewed, such as network topology, loss limitations, laser linewidth requirements and frequency stabilization, polarization issues, local oscillator tuning range, receiver crosstalk performance limits, and levels of integration. Although worldwide attention is now focusing on these issues, significant advances are required in each of these areas before multichannel coherent lightwave systems can be considered for practical applications. >

9 citations

Journal ArticleDOI
TL;DR: In this article, a wave-based method for simulation of LC ladders and unit-element filters by means of switched capacitor (SC) circuits has been proposed based on the use of wave equivalents of various two-port subnetworks which are now realized by the same type of SC symmetric subcircuits.
Abstract: A systematic method for the simulation of LC ladders and unit-element filters by means of switched capacitor (SC) circuits is proposed. the method is based on the use of wave equivalents of various two-port subnetworks which are now realized by the same type of SC symmetric subcircuits. These subcircuits serve as the structural unit-blocks for realizing high-order circuits. Parasitic-free circuits of practical interest can be developed. Examples of high-order circuits are given. This wave method is simple in its concept and also in the circuit design. Through the alternative solutions which are described, the flexiblity of the method is demonstrated.

4 citations

Journal ArticleDOI
TL;DR: In this article, all possible fully differential switched capacitor biquad circuits are presented and a systematic design procedure and comparison of their properties is given, and special attention is given to the high frequency performance of these circuits.
Abstract: All possible fully differential switched capacitor biquad circuits are presented in this work. Some of them have been presented by other authors. A systematic design procedure and comparison of their properties is given. Special attention is given to the high frequency performance of these circuits. Results show that as well as the known biquad circuits, there are others with comparable and in some cases better properties.

3 citations

Journal ArticleDOI
TL;DR: In this paper, a bilinear integrator based on the inverse recharging technique used in voltage inverter switch (VIS) circuits is presented. But the inverting and noninverting integrators are parasitic-free without compensation.
Abstract: A different way to develop bilinear integrators is presented. It relies on the inverse recharging technique used in voltage inverter switch (VIS) circuits. Three new circuits, one inverting and two noninverting integrators developed by this technique, are presented. All circuits are parasitic-free without compensation. In two of them, there is no need for component matching to realize the bilinear z-transformation. Consequently the circuits are suitable for integration. The inverting integrator is compared to six known similar circuits. >

3 citations

References
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