Voltage Controlled Oscillators (VCOs) are electronic components that generate oscillating signals whose frequency can be precisely controlled by an applied voltage. These versatile devices find applications in various electronic systems, such as communication equipment, frequency synthesizers, and phase-locked loops, where the ability to modulate the output frequency in response to a control voltage is essential for system functionality.Prices vary based on factors like frequency range and tuning capabilities, with basic models for standard applications being more affordable than high-performance or specialized VCOs. When purchasing, crucial considerations include frequency range, tuning capabilities, phase noise, frequency stability, modulation options, temperature stability, control voltage range, and power supply requirements. Evaluate these factors to ensure compatibility and optimal performance for your specific application.