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Mostrando ítems 1-10 de 11
Ponencia
Sensor de humedad del suelo de bajo coste para control de regadíos
(2001)
This paper presents a low-cost system to measure soil humidity for application in irrigation control. It is based in the simultaneous measurement of the real and imaginary parts of the impedance of a volume of soil ...
Ponencia
Mixed-signal map-configurable integrated chaos generator for digital communication systems
(2001)
In this paper, the methodological aspects for the design of mixed-signal map-configurable chaos generators are presented. Such techniques have been applied in the integration, embedded in a complete FM-DCSK modem, of a ...
Artículo
Efficient realization of a threshold voter for self-purging redundancy
(Springer, 2001)
The self-purging technique is not commonly used mainly due to the lack of practical implementations of its key component, the threshold voter. A very efficient implementation of this voter is presented which uses a ...
Ponencia
Analysis and Experimental Characterization of Idle Tones in 2nd-Order Bandpass Sigma-Delta Modulators - A 0.8μm CMOS Switched-Current Case Study
(Institute of Electrical and Electronics Engineers, 2001)
Ths paper analyses the tonal behaviour of the quantization noise in 2nd-order bandpass SD modulators. The analysis previously performed for lowpass modulators is extended to the bandpass case. As a result, closed-form ...
Ponencia
Effect of Non-Linear Settling Error on The Harmonic Distortion of Fully-Differential Switched-Current BandPass Sigma-Delta Modulators
(Institute of Electrical and Electronics Engineers, 2001)
This paper presents a detailed study of the effect of the non-linear settling on the harmonic distortion of BandPass SD Modulators (BP-ΣΔMs) realized using Fully Differential (FD) SwItched-current (SI) circuits. Based on ...
Ponencia
Analysis and Modeling of the Non-Linear Sampling Process in Switched-Current Circuits - Application to Bandpass Sigma-Delta Modulators
(2001)
This paper presents a precise model for the transient behaviour of Fully Differential (FD) SwItched-current (SI) memory cells placed at the front-end of high-speed A/D interfaces. This model allows us to analyze the main ...
Ponencia
High-performance ΣΔ ADC for ADSL applications in 0.35μm CMOS digital technology
(Institute of Electrical and Electronics Engineers, 2001)
We present a ΣΔ modulator designed for ADSL applications in a 0.3Sμm CMOS pure digital technology. It employs a 4th-order 3-stage cascade architecture including both single-bit and multi-bit quantizers with programmable ...
Artículo
A practical floating-gate Muller-C element using vMOS threshold gates
(Institute of Electrical and Electronics Engineers, 2001)
This paper presents the rationale for vMOS-based realizations of digital circuits when logic design techniques based on threshold logic gates are used. Some practical problems in the vMOS implementation of threshold gates ...
Ponencia
ACE16k: A programmable focal plane vision processor with 128 x 128 resolution
(European Conference on Circuit Theory and Design, 2001)
This paper presents a new generation 128x128 Focal Plane Analog Programmable Array Processor (FPAPAP), from a system level perspective. The design has recently sent to fabrication in a 0.35μm standard digital 1P-5M ...
Ponencia
Study of Non-Linear S/H Operation in Switched-Current Circuits Using Volterra Series - Application to BandPass Sigma-Delta Modulators
(2001)
This paper analyses the transient behaviour of SwItched-current (SI) memory cells placed at the front-end of high-speed A/D interfaces. Based on the Volterra series method, the non-linear sampling process occurring in ...