Faculty of Electrical and Electronic Engineering and AutomationBook 3.1 · Electrical Engineering, Electronics and Automation

FRI-10.326-1-EEEA-02

CHARACTERIZATION SYSTEMS FOR ENDOSCOPY SENSORS WITH ANALOG AND DIGITAL INTERFACES

Denis Sami, PhD Student

Department of Electronics University of Ruse „Angel Kanchev”

ORCID: 0009-0008-7660-8940

E-mail: dsami@uni-ruse.bg

Plamen Dikulakov, MSc

Department of Electronics University of Ruse „Angel Kanchev”

Prof. Aneliya Manukova-Marinova, DSc

Department of Electronics, Ruse University of Ruse „Angel Kanchev” Deyan Levski, PhD Photolitics OOD, Ruse

Abstract

In this paper, we present a characterization system applied to the output communication interfaces of endoscopy sensors. It is focused on system output analog and digital interfaces as well as the impact of output data formats such as low-voltage signalling (LVDS = 200mV) and analog video (up-to swing 1.5V). Each system is extensively analysed from on-chip and off-chip perspective followed by the design of development boards for chip bring-up and system-optimizations through test-benches for real-time measurement and image processing. The paper analyzes the transfer between on-chip drivers though communication channel up-to receiver. The main topic is extended by suggesting decoding techniques of received raw data from the sensor in analog and digital domain in synchronous and asynchronous systems. The obtained results aim to asses the advantages and disadvantages of the proposed interfaces and depict the challenges in achieving robust communication channel.

Keywords

CIS, CMOS, Endoscope, Bio-Medical Application, Analog and Digital Interfaces, LVDS, Communication Channel, Synchronous and Asynchronous System

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