VCO-118SMT

Voltage Controlled Oscillators (VCOs) are electronic circuit components that convert a varying voltage into an oscillating waveform. The VCO-118SMT is a type of VCO which includes a voltage-controlled integrated circuit (IC) package and an externally connected Tunable Inductor. It is typically used in radio frequency (RF) circuits and is used to generate signals in the frequency range of 70 – 118 MHz.The VCO-118SMT is comprised of two main components, the voltage-controlled IC package (VCO) and the externally connected Tunable Inductor, L. The VCO is the driver of the oscillation and contains a CMOS device, a voltage controlled oscillator (VCO), and a frequency-dividing counter. The VCO converts a DC voltage input into an output of an oscillating waveform. The frequency of the oscillation is determined by the voltage applied to the VCO\'s gate, which is referred to as the gate voltage. The Tunable Inductor, L, is represented by a single turn coil or a two-turn, sealed-coil inductor that is electronically tuned by an external voltage source.The working principle of the VCO-118SMT is based on a negative resistance behavior. When an input voltage is applied to the VCO\'s gate, the current flowing through the circuit will change, which causes a voltage drop across the inductor, resulting in a negative resistance. This reduces the effective linear resistance of the circuit and drives it into oscillation. The frequency of the oscillation is determined by a combination of the gate voltage, VIN, the supply voltage, VCC, and the inductance of the tunable inductor, L.The VCO-118SMT is a versatile design that can be used in a variety of applications. It is primarily used to generate signals in the lower range of radio frequencies, typically 70 – 118 MHz. These signals can be used for various radio-based applications such as radio communication, monitoring, and broadcasting. It is also used for modulation and demodulation of data signals for wireless applications.VCOs are widely used in RF circuit applications, as they offer high frequency output stability, excellent linearity, and good power consumption efficiency. The VCO-118SMT is a compact and reliable device that provides excellent performance and high-frequency accuracy. It is an ideal solution for applications with limited space requirements, and it can be used in a variety of RF circuit designs.