Robert Hanson to Present at Cascade DC Chapter Meeting Sept. 18

Reading time ( words)

Be sure to sign up for the upcoming IPC Designers Council Cascade Chapter seminar on September 18, 2019 at Lake Washington Institute of Technology. Americom Seminars President Robert Hanson, a veteran high-speed design instructor, will present "Differential Signaling: Tradeoffs for Optimization of Signal Quality and Routing.” This evening event is free and dinner will be provided, courtesy of Cadence Design Systems. Don't miss out on this great educational opportunity to advance your knowledge and design skills.

During this seminar, attendees will learn about the attributes of loosely/tightly coupled differential pairs, as well as definitions and examples of differential-mode and common-mode voltage, current and differential impedance, both odd and even modes. The advantages and disadvantages of edge (side-by-side), broadside (dual), asymmetric and microstrip differentials will also be discussed.

Pertinent topics regarding reflections and crosstalk in differentials will be included. Metastability, clock skew, driver skew, bit pattern sensitivity, ISI, skin effect, dielectric constant, jitter, BER, and the eye diagram are part of the session. Other topics that will be discussed include matching electrical lengths, differential unbalance, controlling Z_o, differential/common mode radiation, transversing connectors, and other signal quality issues and design guides.

Attendees will learn: 

• All voltage, impedance, and current definitions for differential signaling.
• Comparison of edge, broadside, asymmetric, and microstrip differential layouts and effectiveness in controlling crosstalk and radiated emissions.
• How to overcome differential unbalance.
• How to control Z_o when switching from loosely coupled to tightly coupled (and vice versa) differential layouts.
• The major drawback when using broadside differentials.
• Why differential signaling is essential for long haul, high-speed transmission lines.

To sign up, please go to our website: http://cascade-ipcdc.org

Meeting Agenda

5:45 pm to 6:00 pm: Dinner is served
6:00 pm to 8:30 pm: Presentation
8:30 pm to 8:40 pm: Q&A
8:40 pm to 8:45 pm: Door prize drawings

Next Chapter meeting: December 4, 2019

Tim Mullin, President
IPC Designers Council - Cascade Chapter
http://cascade-ipcdc.org
Cell: (253) 229-6914

 

11/07/2019 | Andy Shaughnessy, Design007 Magazine

In a recent survey, we asked the following question: What advice would you give an OEM systems designer? Here are a few of the answers, edited slightly for clarity.

11/07/2019 | Andy Shaughnessy, Design007 Magazine

I caught up with Dugan Karnazes again this year and discussed his new startup, Velocity Research, which is a one-stop shop for design made up of technical creatives. The Grand Rapids company is already doing design work for a variety of customers, from individuals to multinational companies.

10/31/2019 | Andy Shaughnessy, Design007 Magazine

During the IPC Summer Meetings, I spoke with Karen McConnell, senior staff CAD CAM engineer with Northrop Grumman Mission Systems. Karen is a veteran PCB designer as well as an IPC committee chair and mentor. She offered an update on some of the IPC committees she chairs, the need for more mentor programs in this industry, and why you can call something a ham sandwich if you define it correctly in the standard.