Dealing with De-emphasis in Jitter Testing

This paper addresses the use of the linear
Dealing with De-emphasis in Jitter Testing TECHNICAL BRIEF



Peter J. Pupalaikis Recently transmit de-emphasis has become a popular element in
Principal Technologist equalized serial data transmission systems. Most commonly, this is in the
September 21, 2008 form (or an equivalent form) of a digital filter. The digital filter is most often
a two tap filter with one cursor tap and one precursor tap. The digital filter
Summary can be represented as:
This paper addresses the use
of the linear H ( z ) = C + P z 1

where C is the weight of the