Design of CMOS LED driver and optical receiver for 650-nm POF applications

Kang Yeob Park, Won Seok Oh, Woo Young Choi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

In this paper, LED driver and optical receiver for 650-nm plastic optical fiber (POF) applications are designed and implemented using 0.5-μm CMOS technology. In LED driver, modulation current has to be arranged in 3 to 4-mA to meet eye protection regulations in visible red wavelength (650-nm). To apply for low cost POF applications, simple and low cost LED driver is proposed. LED driver is designed to operate at 50-Mb/s bit rates and consumes only 6-mA DC currents including modulation current of 3.5-mA. In the receiver side, two methods of auto-threshold control technique will be introduced and compared. The designed optical receiver achieves transimpedance gain of 145-dBΩ, 50-Mb/s operations with 45-MHz bandwidth for 4-pF photodiode parasitic capacitance. And proposed optical receiver guarantees digital level output swing against the range of incident photo current from 200-nA to 25-uA and the range of operating frequency from DC to 50-Mb/s. Receiver chipset consumes only 10-mW from a 3.3-V single supply.

Original languageEnglish
Title of host publication2009 9th International Symposium on Communications and Information Technology, ISCIT 2009
Pages1375-1380
Number of pages6
DOIs
Publication statusPublished - 2009
Event2009 9th International Symposium on Communications and Information Technology, ISCIT 2009 - Icheon, Korea, Republic of
Duration: 2009 Sep 282009 Sep 30

Publication series

Name2009 9th International Symposium on Communications and Information Technology, ISCIT 2009

Other

Other2009 9th International Symposium on Communications and Information Technology, ISCIT 2009
CountryKorea, Republic of
CityIcheon
Period09/9/2809/9/30

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Information Systems
  • Software

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