. Powering Digital Boards - Distribution and Performance The Greater Boston Chapter of the IPC Designer's Council will hold its next meeting on Tuesday, Feb 9th at 6pm. Istvan Novak, SI Staff Engineer with Sun Microsystems, will speak on the relevant issues of today's digital systems with respect to the often overlooked (or "assumed") power systems. As system speeds continue to increase, the multiplicity of voltages and the integrity of the overall power system can quickly become major obstacles to physical design and system performance. This presentation will examine: - Proliferation of supply voltages. Why it happens, do we see an end to it? - Power-distribution requirements: Historical perspective, roadmap. Do we have any roadblocks in front of us? - Power-distribution components: what should we know about caps, inductors, planes. Why are caps with higher ESR sometimes better? How do planes help us? - Things to avoid, and how to avoid: Resonances among bypass capacitors Resonances of power planes Peaking in PLL and EMI filters - A simple approach for bypassing Agenda: Note there is a meeting fee of $5/members; $10/non-members 6:00 pm, Arrivals; Pizza and soft drinks available 6:45 Jeff Seeger - Chapter Update 7:00 Istvan Novak, Power Distribution and Performance Directions: Lockheed/Martin in Lexington MA. This facility is located off route 128 at the route 2A/Concord/Hanscom exit. Proceed West 200 yds, turn Left onto Forbes Road. The meeting is in the first building on the left (after the guard shack). President's Note: I am most pleased to have been able to attract Mr. Novak to present to our group. He is responsible for campaigning signal and power integrity issues within Sun Microsystems, as both a point and educational resource. With the performance levels that a leading computer builder must reach, we can know that Mr. Novak's perspective and content will highlight a proper path. I've personally enjoyed (and learned from) his posts in industry forums, and very much look forward to his presen- tation. I hope you'll join us. Mission: Design is not called "do" for a reason. To design in today's PWB environment implies adding value while giving electronics a physically manifestable form. In order to add value one must have a full grasp of the issues and stakeholders, often helping to mediate compromises among those interest groups. The Greater Boston Chapter of the IPC Designer's Council is trying to bring those stakeholders, from every discipline, to show you their problems and solutions so you can add to your arsenal of knowledge. Your help and participation would be most welcome. Non members are welcome at meetings, but expect some pressure to join...<grin>. Non-members RSVP please, reply/sender-only mailto: [log in to unmask] Thanks and regards, -- Jeff Seeger Applied CAD Knowledge Inc Chief Technical Officer Tyngsboro, MA 01879 jseeger "at" appliedcad "dot" com 978 649 9800 Chapter President, Greater Boston IPC Designer's Council ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################