FN7200004

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Oscillators

Oscillators are an essential component in many electronic devices, providing an accurate source of timing signals. They are used to insert clock signals into integrated circuits for purposes such as frequency measurement and synchronizing data lines. The FN7200004 is a type of oscillator used for these purposes. In this paper, the application field and working principle of the FN7200004 will be discussed.

FN7200004 Application Field

The FN7200004 is a low-power oscillator from Fairchild Semiconductor. It is a highly integrated device with various features that make it suitable for many oscillator applications. It is designed to operate from a single voltage supply between 2V and 5.5V, and provides very low power consumption starting at 1.6mA. It provides an output frequency range between 500 kHz and 8 MHz, and very accurate output frequency accuracy of +/-100 ppm.

In addition, the FN7200004 has a wide operating temperature range from -40°C to +125°C, making it suitable for use in a variety of industrial and automotive systems. The FN7200004 is also integrated with various features to make it protected against environmental hazards, such as ESD protection, and a low EMI design which minimizes noise emission.

The FN7200004 is widely used in embedded systems, automotive controllers, and other applications requiring reliable and accurate oscillator timing signals. It can be used to generate precise clock signals for microcontrollers, as well as synchronization signals for communication buses.

FN7200004 Working Principle

The FN7200004 operates by converting a voltage input into an accurate output frequency. It consists of an internal oscillator circuit, consisting of a modified Colpitts oscillator circuit, and a frequency-dividing buffer. The voltage input is used to control the oscillator frequency, with the frequency-dividing buffer providing the output signal.

When power is applied to the FN7200004, the internal oscillator circuit begins to generate an alternating current (AC) signal. This signal is fed through the internal frequency-dividing buffer, which outputs a frequency divided by 8, 16, or 32, depending on the configuration. The output of the frequency-dividing buffer is then used as the output signal.

The accuracy and stability of the output frequency of the FN7200004 is dependent on the accuracy of the internal oscillator. This oscillator is comprised of an LC tank network, which produces an output frequency which is proportional to the capacitance of the capacitors and the inductance of the inductor. The FN7200004 contains integrated capacitors and inductors, which are calibrated to provide very accurate frequency accuracy.

The FN7200004 also contains a variety of features to protect the device against environmental hazards, such as ESD protection, and a low EMI design which minimizes noise emission. Additionally, the FN7200004 is capable of operating over a wide temperature range, from -40°C to +125°C.

Conclusion

The FN7200004 is a highly integrated oscillator from Fairchild Semiconductor, designed to provide very low power consumption, accurate output frequency, and reliable operation in harsh industrial and automotive environments. It is widely used in embedded systems, automotive controllers, and other applications requiring reliable and accurate oscillator timing signals. It operates by converting a voltage input into an accurate output frequency, using an internal oscillator circuit and a frequency-dividing buffer.

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