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Self-configuration system and frequency characterization of a programmable photodetector ASIC
  • +5
  • Nicolás Calarco,
  • Matías Córdoba,
  • Lucas Mombello,
  • Joel Gak,
  • Martín Lorenzatto,
  • Sebastián Pazos,
  • José Lipovetzky,
  • Fernando Perez Quintián
Nicolás Calarco
Universidad Nacional del Comahue

Corresponding Author:nicolas.calarco@fain.uncoma.edu.ar

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Matías Córdoba
Universidad Nacional del Comahue
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Lucas Mombello
Universidad Nacional del Comahue
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Joel Gak
Universidad Catolica del Uruguay
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Martín Lorenzatto
Universidad Nacional del Comahue
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Sebastián Pazos
Universidad Tecnologica Nacional Facultad Regional Buenos Aires
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José Lipovetzky
Consejo Nacional de Investigaciones Cientificas y Tecnicas
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Fernando Perez Quintián
Universidad Nacional del Comahue
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Abstract

In this work a self-configuration system and the frequency characterization for a fully integrated CMOS photodetector sensor is presented. The sensor is composed of pixels with programmable switches that allow each pixel to connect with its neighbors; in this way, an arbitrary detection pattern can be synthesized on it. The design was aimed to be part of an optical encoder based on a non-diffractive light beam, therefore, the purpose of the self-configuration routine is to find the center of the incident non-diffractive beam and then configure the detection pattern around it. The corresponding algorithm is implemented on a Zynq-7000 SoC allowing to automate the alignment of the beam with the detection pattern, without using micrometric positioning procedures. The frequency response of the analog front-end of the entire chip (the pixels and the amplification system) is addressed via SPICE simulations and experimental data, and is consistent with the classical mathematical models, allowing us to propose future improvements to the design.
14 Nov 2022Submitted to International Journal of Circuit Theory and Applications
15 Nov 2022Submission Checks Completed
15 Nov 2022Assigned to Editor
15 Nov 2022Review(s) Completed, Editorial Evaluation Pending
18 Nov 2022Reviewer(s) Assigned
22 Dec 2022Editorial Decision: Revise Major
20 Feb 20231st Revision Received
27 Mar 2023Submission Checks Completed
27 Mar 2023Assigned to Editor
27 Mar 2023Review(s) Completed, Editorial Evaluation Pending
27 Mar 2023Reviewer(s) Assigned
27 Mar 2023Editorial Decision: Accept