Signal Reflection Suppression Method in High-Speed Data Acquisition and Processing System

Author

Zhang, Jun-Xing ; Zhao, Ji-yin ; Bo, Chun-Juan

Author_Institution

Dept. of Electromech. Eng., Dalian Nat. Univ., Dalian, China

Volume

2

fYear

2009

fDate

26-27 Aug. 2009

Firstpage

241

Lastpage

244

Abstract

In high-speed DSP system, the source and load reflections depend on how well the output impedance and the load impedance are matched with the characteristic impedance, respectively. The reflected signal leads to ring, crosstalk and EMI thus degrade system performance and destroy the signal integrity. In the design process of high-speed data processing system based on TMS320DM642, the boundary condition of transmission line and the termipoint means to restrain signal reflection are discussed. The topology of data bus termipoint is analyzed. The simulation results of different termipoint methods are presented.

Keywords

crosstalk; data acquisition; digital signal processing chips; electromagnetic interference; interference suppression; EMI; TMS320DM642; crosstalk; data bus termipoint; high-speed DSP system; high-speed data acquisition system; signal integrity; signal reflection suppression method; Crosstalk; Data acquisition; Degradation; Digital signal processing; Electromagnetic interference; Impedance; Process design; Reflection; Signal processing; System performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Human-Machine Systems and Cybernetics, 2009. IHMSC '09. International Conference on

Conference_Location

Hangzhou, Zhejiang

Print_ISBN

978-0-7695-3752-8

Type

conf

DOI

10.1109/IHMSC.2009.184

Filename

5335995