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A 4-Channel 8-Gb/s/ch VCSEL driver array

Title
A 4-Channel 8-Gb/s/ch VCSEL driver array
Authors
Hong C.Park S.M.
Ewha Authors
박성민
SCOPUS Author ID
박성민scopus
Issue Date
2018
Journal Title
Journal of Semiconductor Technology and Science
ISSN
1598-1657JCR Link
Citation
Journal of Semiconductor Technology and Science vol. 18, no. 1, pp. 1 - 6
Keywords
AOCCMOSDriverPCIeVCSEL
Publisher
Institute of Electronics Engineers of Korea
Indexed
SCIE; SCOPUS; KCI WOS scopus
Document Type
Article
Abstract
This paper presents a 4-channel VCSEL driver array operating up to 8 Gb/s per channel for the applications of active optical cables. Implemented in a 0.13-mm CMOS technology, the proposed 4-channel array chip directly drives four common-cathode VCSEL diodes with bias currents of 3.0 mA and modulation currents of 6.0 mAPP in maximum. Each channel consists of an input buffer for impedance mathching, an equalizer for wide bandwidth, a modified Cherry-Hooper amplifier for optimizing the design tradeoff between switching speed and device size, and a main driver with pre-emphasis for fast rising time. Particularly, a constant bias circuit is exploited to acquire stable bias voltages for current-sources. Measured results of the proposed 4-channel VCSEL driver array demonstrate wide and clean eye-openings for up to 8-Gb/s operations. The driver array dissipates only 47.6 mW per channel and the chip core occupies the area of 0.15×0.1 µm2. © 2018, Institute of Electronics Engineers of Korea. All rights reserved.
DOI
10.5573/JSTS.2018.18.1.001
Appears in Collections:
엘텍공과대학 > 전자공학과 > Journal papers
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