Jitter Analysis of PWM Scheme in High Speed Serial Link

Author

Tang, Rui ; Kim, Yong-Bin ; Choi, Minsu ; Lombardi, Fabrizio

Author_Institution

Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA

fYear

2006

fDate

24-27 April 2006

Firstpage

494

Lastpage

497

Abstract

This paper presents a jitter analysis method for PWM (pulse width modulation) scheme in high-speed serial links. The data rate of PWM with N different pulse widths (PWM-N) scheme is (log₂N) times (symbol rate). However it increases the timing jitter of the transmitted signal. The timing jitter is determined by the pulse widths of PWM symbols and the characteristics of the communication channel. The analysis of the first-order systems and the second-order systems demonstrates that data dependent jitter (DDJ) strongly depends on the -3dB frequency and the damping ratio of the systems. The proposed jitter analysis method makes it possible to determine the pulse width of PWM symbols with the known characteristics of the channel

Keywords

pulse width modulation; radio links; timing jitter; wireless channels; communication channel; data dependent jitter; first-order systems; high speed serial link; jitter analysis; pulse width modulation scheme; second-order systems; timing jitter; Clocks; Communication channels; Digital systems; Frequency; Optical signal processing; Pulse width modulation; Pulse width modulation inverters; Signal analysis; Space vector pulse width modulation; Timing jitter; high-speed serial link; jitter; pulse width modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2006. IMTC 2006. Proceedings of the IEEE

Conference_Location

Sorrento

ISSN

1091-5281

Print_ISBN

0-7803-9359-7

Electronic_ISBN

1091-5281

Type

conf

DOI

10.1109/IMTC.2006.328549

Filename

4124375