Modified feedback ECL gate for Gb/s applications

Author

Ramakrishnan, Vinodkumar ; Albers, Jens N. ; Nottenburg, Richard N.

Author_Institution

Hewlett-Packard Co., Palo Alto, CA, USA

Volume

34

Issue

2

fYear

1999

fDate

2/1/1999 12:00:00 AM

Firstpage

205

Lastpage

211

Abstract

This paper introduces a modification of the feedback emitter-coupled logic (FECL) gate that makes it suitable for Gb/s applications. The circuit can be used as a single-ended-to-differential signal converter without the need for an external reference voltage and finds application in digital optical links in which data is typically transmitted single ended. The gate is compared with FECL and ECL gates, and its application to realize logic functions is discussed. A 6-Gb/s series gated decision circuit and a 2-Gbaud/s four-channel optical receiver array employing modified FECL gates are also described

Keywords

bipolar logic circuits; circuit feedback; convertors; decision circuits; emitter-coupled logic; high-speed integrated circuits; logic gates; optical receivers; 6 Gbit/s; Gb/s applications; digital optical links; emitter-coupled logic; four-channel optical receiver array; logic functions; modified feedback ECL gate; series gated decision circuit; single-ended-to-differential signal converter; High speed optical techniques; Logic arrays; Logic circuits; Logic gates; Optical arrays; Optical feedback; Optical fiber communication; Optical receivers; Switching circuits; Voltage;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.743775

Filename

743775