EMC Tutorial Articles

EMC Calculators

Maximum Radiated Emissions Calculator (MREMC)

Board Layout Video Examples

Identifying and Correcting Problems with Simple Circuit Boards

PCB Layout Video Example 01

Example 1 - (14 min)
4-Layer Mixed Signal Board

PCB Layout Video Example 02

Example 2 - (17 min)
6-Layer Mixed Signal Daughter Board

PCB Layout Video Example 03

Example 3 - (24 min)
6-Layer Mixed Signal Board with RF Analog

Video Demonstrations

Dips in the Supply Voltage can Confuse a Microprocessor - (6 min)
Microprocessors need a constant supply of power in order to function correctly. This short demonstration illustrates what can happen when a drop in the supply voltage is long enough to affect the internal logic, but not long enough to reset the processor.

EMC Question
of the Week

An active device is mounted on a 4-layer board with a GND plane on Layer 2 and a VCC plane on Layer 3. The spacing between Layers 2 and 3 is 1 mm. Which of the four decoupling capacitors depicted in the figure provides the best high-frequency decoupling? 

  1. (a.)
  2. (b.)
  3. (c.)
  4. (d.)

Answer to this week's question

Answer to last week's question

four options for placing and connecting a high-frequency decoupling capacitor on a four-layer printed circuit board