What does FVC mean in UNCLASSIFIED

An FVC is an electronic circuit that converts the frequency of an input signal into a proportional voltage output. It serves as a frequency-to-analog converter and finds applications in various electronic devices.

An FVC typically employs a charge pump or a voltage-controlled oscillator (VCO) to convert the input frequency into a voltage output. The charge pump accumulates or discharges charge to generate a voltage proportional to the frequency, while the VCO generates an output voltage whose frequency is proportional to the input frequency.

Key characteristics of an FVC include its conversion gain, bandwidth, linearity, and temperature stability. Conversion gain determines the output voltage per unit frequency change, bandwidth specifies the frequency range over which the FVC operates effectively, linearity ensures a proportional relationship between input frequency and output voltage, and temperature stability minimizes output voltage variations due to temperature changes.

FVCs find applications in various electronic systems, including tachometers, speed sensors, flow meters, and audio analysis equipment. They can measure and convert the frequency of physical signals (e.g., mechanical vibrations, liquid flow rate, or audio signals) into corresponding voltage outputs for further processing or display.

FVCs offer several advantages:

• Frequency-to-analog conversion: They provide a convenient way to convert frequency signals into analog voltage signals, which can be easily processed and interpreted by other electronic circuits.
• Wide dynamic range: FVCs can handle a wide range of input frequencies, enabling them to measure and convert signals of varying frequencies.
• Compact size and low power consumption: Modern FVCs are typically small and consume low power, making them suitable for portable or embedded applications.