LIC-VCO

What is the primary function of a voltage controlled oscillator?

• To generate a constant voltage output
• To generate a sinusoidal output with adjustable frequency
• To regulate voltage in a circuit
• To filter out unwanted frequencies in a signal

What is the typical frequency range of a VCO?

• DC to 10 Hz
• 1 Hz to 1 kHz
• 100 kHz to 10 MHz
• 1 MHz to 1 GHz

What is the effect of increasing the control voltage on a VCO?

• Increases the frequency output
• Decreases the frequency output
• Has no effect on the frequency output
• Causes the VCO to shut down

Which component is commonly used to control the frequency of a VCO?

• Capacitor
• Inductor
• Resistor
• Varactor diode

What is the purpose of a buffer amplifier in a VCO circuit?

• To increase the voltage gain of the circuit
• To filter out unwanted frequencies in the signal
• To provide isolation between stages of the circuit
• To amplify the output signal to a higher power level

What is the typical output waveform of a VCO?

• Square wave
• Sawtooth wave
• Triangle wave
• Sinusoidal wave

Which type of VCO is most commonly used in radio frequency applications?

• Colpitts oscillator
• Hartley oscillator
• Clapp oscillator
• Pierce oscillator

What is the primary advantage of using a VCO in a phase-locked loop (PLL) circuit?

• Provides a variable output frequency
• Provides a stable output frequency
• Reduces unwanted noise in the output signal
• Amplifies the output signal to a higher power level

What is the typical voltage gain of a VCO?

• Greater than 100
• Between 10 and 50
• Between 1 and 10
• Less than 1

Which type of modulation is commonly used with a VCO?

• Amplitude modulation
• Frequency modulation
• Phase modulation
• Pulse width modulation