Answer8

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	WHAT'S YOUR ENGINEERING QUOTIENT?
•Homerun? Problem 8—Consider the circuit shown. Given that X is a square-wave with a period many times longer than one gate delay, what does Y look like? Answer: The circuit generates a short positive-going pulse on Y when X has a falling edge. This type of circuit is often referred to as a glitch generator. In physical implementations, the AND gate should be a Schmitt device to ensure a single clean transition on the output (Y). If the pulse needs to be lengthened, a resistor can be inserted between the output of the inverter and the capacitor. 2-00 For questions or comments about Test Your EQ, e-mail eq@circuitcellar.com.