SIT3809AC-C-18EH

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Programmable oscillators are a type of signal generator used to produce accurately and quickly repeatable signals of a certain frequency. The SIT3809AC-C-18EH is an example of such a programmable oscillator. It is a small and widely used device that can be found in a variety of applications.

The SIT3809AC-C-18EH features a low power design and provides adjustable frequencies in the low MHz range. It has an input voltage range of 2.7V-5.5V and output range of 0.5V-VCC. It supports a wide variety of frequency range, from 0.5MHz to 18MHz. It also has an adjustable output amplitude and adjustable rising and falling edges.

In terms of applications, the SIT3809AC-C-18EH has many uses. One is as a clock source in microcontrollers and microprocessors, providing a stable and continuous signal for the system’s operations. It is also widely used in telecommunications, to generate signals for communication purposes. Many other systems and devices use the SIT3809AC-C-18EH for frequency clock generation and synchronization.

The working principle of the SIT3809AC-C-18EH is quite simple. It utilizes two control signals to set its desired operation frequency, and then produces a continuous output signal at that frequency. The two control signals are called Frequency Select inputs “FS0” and “FS1”. The inputs are logic level signals which can be either high or low. When these two inputs are at the same logic level, the frequency of the output signal is determined by an internal programmable frequency divider.

The frequency divider is a circuit that modifies the frequency of the input signal. The output frequency can be set using an internal register. By changing the values in the register, the output frequency can be adjusted. Typically, the output frequency is equal to the internal frequency divided by the register value.

Once the output frequency is set, the SIT3809AC-C-18EH produces a continuous output at that frequency. The output is adjustable and can be set to output a certain voltage or current level. This can be used to provide a specific clock frequency for a system.

In summary, the SIT3809AC-C-18EH is a well-known and widely used programmable oscillator. It is small and offers adjustable frequencies in the low MHz range. It is used in a variety of applications and its working principle is quite simple. Internally, it utilizes a frequency divider to set the output frequency and then produces a continuous output signal. This makes it a great choice for many systems.

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