J4 ›› 2012, Vol. 39 ›› Issue (6): 109-113+161.doi: 10.3969/j.issn.1001-2400.2012.06.018

• Original Articles • Previous Articles     Next Articles

Method of computing the peak-to-peak value of data dependent jitter in the mBnB coding data stream

WANG Donglü1,2;YANG Junfeng1,2;CAO Ping1,2;WANG Yanfang1,2   

  1. (1. Key Lab. of Tech. of Particle Detection & Electronics, Chinese Academy of Sci., Hefei  230026, China;
    2. Anhui Key Lab. of Physical Electronics, Dept. of Modern Physics, Univ. of Sci. and Tech. of China, Hefei  230026, China)
  • Received:2011-07-21 Online:2012-12-20 Published:2013-01-17
  • Contact: WANG Donglü E-mail:dongzi@mail.ustc.edu.cn

Abstract:

A formula for data dependent jitter (DDJ) is derived from the pulse response function of the high speed serial link. Based on the formula and mBnB encoding schemes, an iterative algorithm for finding the input bits which has the maximum or minimum of DDJ is presented and the peak-to-peak value of DDJ is calculated. Compared to the ordinary method of using lots of random mBnB coded bits to search for the peak-to-peak value of DDJ, this method is more accurate and with less computational complexity. The result can be used to evaluate the jitter performance of different mBnB coding schemes.

Key words: data dependent jitter, mBnB coding, 8B10B coding, 4B5B coding, pulse response

CLC Number: 

  • TN919.3