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Today's digital data lines are clocking at very high speed, in excess of 100MHz with rise time in the sub-nano second range. The effects of EMI radiation even from short traces are becoming significant and cannot be ignored. The use of resistive termination versus the EMI filter has long been a compromise in terms of cost and necessity. EMI compliance is now becoming a major design challenge for product...
With increasing clock speed in high-speed digital design, proper impedance matching between the printed circuit board trace and the clock driver output is crucial for signal integrity design. Adding a series output resistor is a common technique to match a clock driver output to a high-speed signal trace for its simplicity and ease of implementation. The selection of the value of the series output...
Matched terminations of high-speed digital buses have long been the focus of high-speed board design. With increasing edge rates, proper bus termination has become even more crucial in today's high-speed PCB interconnect design. Using a co-simulation approach, the 3D electromagnetic (EM) effects of high-speed interconnects and the circuit behavioral IBIS models of active devices are combined to investigate...
Power/ground plane structure is widely used for power distribution purposes in multi-layer printed circuit board (PCB) design. The characteristic of board cavity may cause signal resonance at some frequencies and can lead to signal integrity (SI) and electromagnetic interference (EMI) concerns. An efficient method to extract the equivalent circuit of the power bus is proposed in this paper. With extracted...
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