Low-noise, high-speed data transmission using a ringing-canceling output buffer

Author

Sekiguchi, Tomonori ; Horiguchi, Masashi ; Sakata, Takeshi ; Nakagome, Yoshinobu ; Ueda, Shigeki ; Aoki, Masakazu

Author_Institution

Central Res. Lab., Hitachi Ltd., Kokubunji, Japan

Volume

30

Issue

12

fYear

1995

fDate

12/1/1995 12:00:00 AM

Firstpage

1569

Lastpage

1574

Abstract

The proposed ringing-canceling output buffer transmits a superimposed two-step pulse that almost completely cancels the ringing in the received waveform. Simulation showed that this circuit increases the noise margin by a factor of 2.6 compared to using a conventional circuit in a bus interface at a data rate of 200 MHz. A test circuit was designed and fabricated to experimentally verify the fundamental ringing-canceling effect. Compared with other approaches to reducing ringing, the ringing-canceling output buffer provides a bigger improvement in the noise margin with a smaller signal-delay. This output buffer is promising for improving the data transfer rate of the memory bus

Keywords

buffer circuits; computer interfaces; data communication; digital integrated circuits; interference suppression; 200 MHz; bus interface; high-speed data transmission; low-noise operation; memory bus data tranfer; noise margin; ringing-canceling output buffer; signal delay; superimposed two-step pulse; Circuit noise; Circuit testing; Data communication; Delay; Frequency; Noise cancellation; Packaging; Random access memory; Reflection; Voltage;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.482208

Filename

482208