Applying Microwave Techniques to Digital Systems: A Simple Case Study


Location: Ballroom B
Date: Tuesday, January 29, 2013
Time: 11:05 AM - 11:45 AM

Techniques well known in the field of RF/microwave analysis can be applied to good effect in high-speed digital design. Often the greatest obstacles are not technical, but arise from differences in methodology and terminology in the microwave area. This session seeks to help bridge that gap with a case study, demonstrating the application of a long-established microwave filter design (drawn from a classic RF text) to a very current problem in high-speed digital design: the conditioning of a processor's clock source to obtain high duty-cycle accuracy. The solution, a four-pole Chebyshev filter, is robust and compact. It is implemented in standard PCB technology, without any unusual spacing or handcrafting techniques, and with no discrete components. Measured data is presented from a proof-of-concept test board and from the final production board.



Dr. Michael Steinberger, Lead Architect of Serial Channel Products, SiSoft
Paul Wildes, Principal Signal Integrity Engineer, SiSoft