comment on this article

Beating time

A session at this year’s ISSCC took a look at the future of frequency control. By Graham Pitcher.

Electronics circuits are nothing without their heartbeats – the vital timing source akin to a metronome that allows the constituent parts to act in unison.
But electronic circuits are generally getting larger – meaning clocks have to be distributed over longer distances – and are required to operate at higher speeds. Not only that, parameters such as skew and jitter become more problematic. And if that wasn’t enough, some devices are running from different supply voltages.
Providing an overview of the problem, the preamble to the clocking session at this year’s International Solid State Circuits Conference in San Francisco, made this observation.
‘The relentless pursuit of performance continues to drive clock frequency requirements into the multi GHz range. This greatly challenges designers, as the need for speed is in direct conflict with the need to keep power and thermal dissipation within system bounds. In response, designers are inventing increasingly innovative techniques for delivery of high performance clocks at low power levels. As process technologies shrink and voltages scale, full digital solutions to ‘super speed’ clock generation which are tolerant to process variations are gaining ground over analogue techniques’.

Author
Graham Pitcher

Related Downloads
11489\Time.pdf

Comment on this article


This material is protected by MA Business copyright See Terms and Conditions. One-off usage is permitted but bulk copying is not. For multiple copies contact the sales team.

What you think about this article:


Add your comments

Name
 
Email
 
Comments
 

Your comments/feedback may be edited prior to publishing. Not all entries will be published.
Please view our Terms and Conditions before leaving a comment.

Related Articles