Which device is used for diagnostic purposes and for recording?
A. Low pass filter
B. Monolithic PLL
C. Voltage Controlled Oscillator
D. None of the mentioned
Answer:A
Which device is used for diagnostic purposes and for recording?
A. Low pass filter B. Monolithic PLL C. Voltage Controlled Oscillator D. None of the mentioned
Explanation: A Voltage Controlled Oscillator (VCO) is used for converting low frequency signals such as EEGs, EKG into an audio frequency range. These audio signals can be transmitted over two way radio communication systems for diagnostic purposes or can be recorded on a magnetic tape for further reference. 2. If the output of the Schmitt trigger is given below. Estimate the output at the pin 3 of VCO.