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) x (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.

Meeting Name

IEEE Instrumentation and Measurement Technology Conference: IMTC (2006: Apr. 24-27, Sorrento, Italy)


Electrical and Computer Engineering

Keywords and Phrases

High-Speed Serial Link; Jitter; Pulse Width Modulation; Symbol Rates; Communication Channels (Information Theory); High Speed Networks; Telecommunication Links; Space Vector Pulse Width Modulation; Optical Signal Processing; Clocks; Timing Jitter; Pulse Width Modulation Inverters; Frequency; Signal Analysis; Digital Systems; Wireless Channels; Radio Links

International Standard Book Number (ISBN)


International Standard Serial Number (ISSN)


Document Type

Article - Conference proceedings

Document Version

Final Version

File Type





© 2006 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Apr 2006