Key Topic 40: Counter, Dividers, Converters Flashcards
3-40E1: What is the purpose of a prescaler circuit?
A. Converts the output of a JK flip-flop to that of an RS flip-flop.
B. Multiplies an HF signal so a low-frequency counter can display the operating frequency.
C. Prevents oscillation in a low frequency counter circuit.
D. Divides an HF signal so that a low-frequency counter can display the operating frequency.
D. Divides an HF signal so that a low-frequency counter can display the operating frequency.
3-40E2: What does the term “BCD” mean?
A. Binaural coded digit.
B. Bit count decimal.
C. Binary coded decimal.
D. Broad course digit.
C. Binary coded decimal.
3-40E3: What is the function of a decade counter digital IC?
A. Decode a decimal number for display on a seven-segment LED display.
B. Produce one output pulse for every ten input pulses.
C. Produce ten output pulses for every input pulse.
D. Add tow decimal numbers.
B. Produce one output pulse for every ten input pulses.
3-40E4: What integrated circuit device converts an analog signal to a digital signal?
A. DAC
B. DCC
C. ADC
D. CDC
C. ADC
3-40E5: What integrated circuit device converts digital signals to analog signals?
A. ADC
B. DCC
C. CDC
D. DAC
D. DAC
3-40E6: In binary numbers, how would you note the quantity TWO?
A. 0010
B. 0002
C. 2000
D. 0020
A. 0010