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Examines the effects of random noise on high-speed timing jitter. Factors that contribute to random timing jitter; Means by which noise voltage is translated into timing jitter; Illustration of a jitter test setup that employs a low-noise phase modulators; Equation used to derive the translation between phase noise and timing jitter; Relationship between the three major noise sources and timing jitter.

The article reports that spectrum inversion is part of the physical layer in Third Generation Partnership Program 2 (3GPP2) that use NCDMA techniques. In a transmitter, the easiest way to check for spectrum inversion is by comparing a single-tone continuous-wave (CW) signal with nominally positive frequency to the local-oscillator (LO) frequency.

Focuses on the operation of the low-voltage shunt series reference. Features of the shunt reference; Contribution of series reference on source capability; Origin of the bias current.

Letters to the editor are presented in response to the article "Crispin's Breakup With the King Results in $300 Million Whopper Sacrifice," published in the March 21, 2011 issue, "Let's Pray for the Safe Release of the BoingBoing Bloggers" by Simon Dumenco in the March 28, 2011 issue, and "Will Ads in Real Time Be Facebook's Holy Grail?" in the March 28, 2011 issue.

The article presents comments from readers of the November 2005 issue of "Design News'" new superhero comic strip, Slack Variable. One reader shares his first interesting encounter with the strip. Another suggests the superhero's need for a new archenemy. Though the strip has gathered overwhelming positive comments from readers, some of them think otherwise. One reader shares about being turned off with the strip's usage of a language that does not promote engineering design.