Diseño de bloques funcionales en modo corriente para un filtro adaptivo
In this Thesis, the current-mode functional blocks for an adaptive filter (AF) are designed. As the signal processing is done in current-mode, it takes advantage of the very high{admittance node of the flipped voltage follower current sinker (FVFCS). Thus, using output nodes with admittance of gds a...
| Autor: | |
|---|---|
| Formato: | tesis de maestría |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2010 |
| País: | México |
| Recursos: | Instituto Nacional de Astrofísica, Óptica y Electrónica |
| Repositorio: | Repositorio Institucional del INAOE |
| Idioma: | español |
| OAI Identifier: | oai:inaoe.repositorioinstitucional.mx:1009/532 |
| Acesso em linha: | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/532 |
| Access Level: | acceso abierto |
| Palavra-chave: | info:eu-repo/classification/Circuitos analógicos/Analog circuits info:eu-repo/classification/Diseño de circuito/Circuit design info:eu-repo/classification/Circuitos de corriente/Current-mode circuits info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/22 info:eu-repo/classification/cti/2203 |
| Resumo: | In this Thesis, the current-mode functional blocks for an adaptive filter (AF) are designed. As the signal processing is done in current-mode, it takes advantage of the very high{admittance node of the flipped voltage follower current sinker (FVFCS). Thus, using output nodes with admittance of gds and input nodes of g2m/gds, good current-mode coupling signals can be assured. Additionally, the current-mode signal processing requires summing nodes, as in the output of the multiplier core. These nodes are also obtained from the FVFCS, fittings either only-signal or signal+bias couplings. Thus, with a 50 µA bias current to polarize each branch of the circuit, a bandwidth of 1.1 GHz is obtained in the current-mode signal processing blocks. Using the same bias current, the signal integrated circuits has a bandwidth of 200 kHz. In both cases, bandwidth is obtained from the architecture. Thus, an improved 1:1 copy in different current mirrors is obtained, reducing the offset in the current-mode couplings. 3Within these reduction methods, a method of reducing order is treated, it is known as asymptotic waveform evaluation, and allows the reduction of order in expressions, to have smaller expressions. Symbolic analysis is also useful for calculating expressions that represent parameters like noise in amplifiers; this topic is also reviewed in this Thesis. |
|---|