Abstract
This paper presents a novel approach to the design of integrated reconfigurable and programmable analog filters for commercial mobile applications. The method is described in the specific context of an analog filter, dedicated to multi-mode receiver front ends employing direct frequency conversion. The filter has been designed using state variables and leap-frog OTA-C techniques, features programmable order, digitally variable frequency parameters and wide linear range, while supporting several standard approximations. The fundamental OTA cell has been implemented with fully balanced second generation current conveyors, suitable for low voltage operation. The novel method is demonstrated by presenting the simulation results of the filter, designed for a 0.18 μm CMOS technology.
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Csipkes, G., Hintea, S., Csipkes, D., Rus, C., Festila, L., Fernandez-Canque, H. (2008). A Digitally Reconfigurable Low Pass Filter for Multi-mode Direct Conversion Receivers. In: Lovrek, I., Howlett, R.J., Jain, L.C. (eds) Knowledge-Based Intelligent Information and Engineering Systems. KES 2008. Lecture Notes in Computer Science(), vol 5179. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-85567-5_42
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DOI: https://doi.org/10.1007/978-3-540-85567-5_42
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-85566-8
Online ISBN: 978-3-540-85567-5
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