Oscillators

Oscillators are circuits that produce periodic time-varying signals. They are essential components in many varied electronic applications such as television receivers, telephones, speakers, computers, clocks, automation control systems and audio electronics. Oscillators generate signals at specific frequencies and at special shapes.

One example of an oscillator is the 635L3I2074M25000. It is a low-voltage, medium to high-current transistor type oscillator used primarily for consumer applications such as TVs, DVD players, cell phones, and CD players. This oscillator features low power consumption, low noise, high stability and high efficiency.

Application field

The 635L3I2074M25000 is designed for consumer applications where precise frequency control is not necessary. It can also be used for industrial and medical applications where power consumption, accuracy and noise level are important. It can be used in switch-mode power converters, inverters, alarm systems, smart meters and air conditioner controllers.

Working principle

The 635L3I2074M25000 uses two transistors in a standard Pierce Oscillator circuit to produce a square wave output with a frequency range of 130-350khz. The output frequency is determined by a frequency determining resistor and an integrated capacitor. The square wave signal is amplified by two transistors and filtered by a low pass filter, the resulting output is then buffered and sent to the output pin.

The oscillator also has an enable/disable pin which allows for the frequency output to be changed without having to have access to the oscillator circuitry. This pin can be used to enable/disable specific frequencies or to create frequency hops between pre-determined frequencies.

Conclusion

The 635L3I2074M25000 is a versatile, low-cost oscillator designed for consumer applications. It provides a low-noise, high-efficiency, low-power solution for applications where precise frequency control is not necessary. The integrated enable/disable pin also provides a convenient method for controlling the frequency output of the oscillator.