Serpentine Microstrip Lines With Zero Far-End Crosstalk for Parallel High-Speed DRAM Interfaces

Author

Lee, Kyoungho ; Jung, Hae-Kang ; Chi, Hyung-Joon ; Kwon, Hye-Jung ; Sim, Jae-Yoon ; Park, Hong-June

Author_Institution

Dept. of Electr. Eng., Pohang Univ. of Sci. & Technol., Pohang, South Korea

Volume

33

Issue

2

fYear

2010

fDate

5/1/2010 12:00:00 AM

Firstpage

552

Lastpage

558

Abstract

Serpentine microstrip lines are proposed to eliminate the far-end crosstalk in parallel high-speed interfaces by increasing the capacitive coupling ratio to equal the inductive coupling ratio. Zero far-end crosstalk voltage waveform and zero crosstalk-induced jitter (CIJ) were achieved on an FR4 printed circuit board, by adjusting the unit section length of the serpentine structure. Application of the proposed serpentine microstrip lines to the 2-drop stub series terminated logic DRAM channel increased the maximum data rate from 0.9 to 1.4 Gb/s and reduced CIJ by ~ 78 ps at 3.3 Gb/s.

Keywords

DRAM chips; crosstalk; jitter; microstrip lines; printed circuits; FR4 printed circuit board; bit rate 0.9 Gbit/s to 1.4 Gbit/s; bit rate 3.3 Gbit/s; capacitive coupling ratio; inductive coupling ratio; parallel high-speed DRAM interfaces; serpentine microstrip lines; zero crosstalk-induced jitter; zero far-end crosstalk; zero far-end crosstalk voltage waveform; Crosstalk-induced jitter; far-end crosstalk; microstrip line;

fLanguage

English

Journal_Title

Advanced Packaging, IEEE Transactions on

Publisher

ieee

ISSN

1521-3323

Type

jour

DOI

10.1109/TADVP.2009.2033938

Filename

5340528