Digital Signal Processing Questions & Answers

Digital Signal Processing Questions & Answers A - CORRECT ANSWER - A standard logic device can be connected on a bus system as an open-collector logic device by connecting each output to a ________. A. discrete transistor B. 10 k series resistor C. light-emitting diode D. CMOS buffer A - CORRECT ANSWER - For a 4-bit DAC, the least significant bit (LSB) is ________. A. 6.25% of full scale B. 0.625% of full scale C. 12% of full scale D. 1.2% of full scale A - CORRECT ANSWER - How are unwanted frequencies removed prior to digital conversion? A. Pre-filters B. Digital signal processing C. Sample-and-hold circuits D. All of the above A - CORRECT ANSWER - In a digital reproduction of an analog curve, accuracy can be increased by ________. A. sampling the curve more often B. sampling the curve less often C. decreasing the number of bits used to represent each sampled value D. all of the above A - CORRECT ANSWER - Which is not an A/D conversion error? A. Differential nonlinearity B. Missing code C. Incorrect code D. Offset A - CORRECT ANSWER - Which term applies to the maintaining of a given signal level until the next sampling?