Random or Deterministic: Understanding jitter is key to serial data comm success
Articles 8/27/2003 Post a comment
With serial data communications clocking faster, tutorials on jitter become like garlic in cooking: It is impossible to do too much. This article, from Agilent Technologies " a company that knows something about the subject " introduces jitter, and the ways it can be measured. Though jitter shows up in a wide variety of diverse applications " ranging from oscillator design to telecommunication network synchronization " engineers Johnnie Hancock and Steven Draving focus primarily on serial data c
Analog integration: power and cellular vie for attention
Articles 8/26/2003 Post a comment
Our friend Raminderpal has been our "go-to-guy" on signal integrity issues, pertaining to both mixed-signal ICs and boards. A senior engineering manager at IBM Microelectronics, a frequent contributor to EE Times, and author of a John Wiley & Sons text on signal integrity, Singh is spokesperson for the Virtual Socket Initiative Association. This column was put together in response to a Planet Analog poll.
Whither analog EDA?
Articles 8/13/2003 Post a comment
If there's such a demand for analog IP, Steve Ohr wonders in this expanded version of a PA magazine editorial, why are the analog EDA startups (and IP providers) having such a rough time? Why did analog methodology/tools/IP vendor Antrim Design Systems rollover and die? Why did BTA become Celestry become Cadence? Why is NeoLinear too within Cadence's gravitational pull? Why is the business fate of Barcelona Design such a mystery? Are analog enthusiasts like Cadence founder Jim Solomon, refusing
Fading Away: What happened to my signal?
Articles 8/6/2003 Post a comment
Signals passing through the air are distorted by atmospheric and environmental impairments including multipath scattering and dispersion, writes Noah Schmidtz in this much expanded version of his contribution to EE Times' InFocus section on RF test. "As a cell phone user, you know that dropping a call in the middle of a conversation is annoying, if not dangerous in emergency situations," Schmidtz says. "As a wireless device designer, it is imperative to verify receiver performance in real-world
Power to the People: Digitally-Controlled Power (DCP) moves into mobile phones
Articles 8/4/2003 Post a comment
The proliferation of features in new mobile phones has outstripped the capabilities of today's integrated analog power management ICs, driving up component counts and lengthening development times. However, the answer to this problem is emerging in the form of Digitally-Controlled Power (DCP), which not only can achieve significant component count reduction, but also can cut handset development time dramatically, according to iSuppli Corp.