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Test your eq



Issue #210 January 2008

Contributor: David Tweed

Problem 1—What is the purpose of a “decoupling” capacitor, usually placed on a circuit board near a block of active circuitry (especially an integrated circuit)? Answer

Problem 2—Which connection(s) to a decoupling capacitor should be shortest? Why? Answer

Problem 3—What is ground bounce, and what causes it? Answer

Problem 4—How can ground bounce affect digital inputs on the same chip? Answer

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