353WB6A143R

An oscillator is an electronic circuit that generates a repeating waveform. Oscillators are used in many different types of electronic products and can be classified in several ways, such as frequency, wave type, topology, number of transistors, power consumption and applications.

353WB6A143R is a silicon monolithic integrated circuit intended for general-purpose use as a voltage-controlled oscillator (VCO). It has a wide range of applications such as frequency synthesized systems, FM modulators, transmitters and receivers.

Application Field

The 353WB6A143R is designed for use in frequency synthesized systems such as radio or TV receivers, transceivers, and remote-control systems. It is suitable for digital signal processing, FM or AM modulation or demodulation, and CFM and TACS applications.

Working Principle

The 353WB6A143R contains an R/C combination for temperature compensation and a parallel combination of an inductor and phosphorus trimetal for frequency compensation. The R, C, and L components determine the output frequency.

The 353WB6A143R is driven by a voltage-controlled current source which supplies a current to an inductor. This in turn produces a voltage across the inductor that is proportional to the applied current. This voltage, in turn, is proportional to the applied control voltage. The output of the voltage-controlled oscillator, then, is proportional to the applied control voltage.

The frequency of the oscillator changes linearly with control voltage. The voltage range for the control voltage is 0V to +5V, and the frequency range is 1MHz to 4GHz.

Conclusion

The 353WB6A143R is an ideal voltage-controlled oscillator for many applications, such as frequency synthesized systems, FM modulators, transmitters and receivers. Its wide range of applications and wide frequency range make it an ideal oscillator for many applications.