353WB5A400R

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Oscillators

Oscillators are devices used to generate electrical signals at desired frequencies for various applications such as communication, instrumentation, control systems, etc. In this article, we will discuss the application field and working principle of the 353WB5A400R oscillator.

Application Field

The 353WB5A400R oscillator is mainly used in automotive applications, industrial control systems, medical applications, and military applications. It is designed to provide stable and low-jitter clocks with fast lock time for microcontroller-based systems. It is also able to generate a wide variety of different frequency outputs from 20 kHz to 400 kHz. It can provide these outputs while consuming very low power and provide excellent EM performance.

Working Principle

The 353WB5A400R oscillator is a voltage-controlled oscillator (VCO). It is based on a high-frequency inverter core that provides excellent frequency stability and jitter performance at high levels of accuracy. Its oscillating frequency is regulated by an external control voltage Vm applied to its control input. When a voltage is applied to the control input, the current in the oscillator core increases and its frequency changes. This change in frequency is due to the change in the bias current of the inverter, which affects the time taken for the output to switch from logic high to low and vice versa.

In addition to the external control voltage, the frequency of the oscillator is also affected by the flip-flop timing capacitor Cs. This capacitor acts as a frequency filter because a larger capacitor results in a lower oscillating frequency whereas a small capacitor results in a higher oscillating frequency. The oscillator can also be adjusted using an external resistor Rf to increase or decrease its frequency.

The 353WB5A400R oscillator also exhibits excellent noise immunity due to its high-frequency operation. It is resistant to noise because it works at frequencies higher than the noise frequency, so it is not affected when noise signals enter the system. Moreover, it also has a low power consumption compared to other oscillators, making it an ideal choice for automotive and other power-sensitive applications.

Conclusion

To sum up, the 353WB5A400R oscillator is an ideal choice for various applications such as automotive, industrial control systems, and medical applications. Its frequency can be controlled by an external voltage or adjusted using an external resistor. It has excellent frequency stability and jitter performance, and also provides reliable and low-power operation. It is also highly resistant to noise due to its high-frequency operation.

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