SIT3821AI-1D-25EH

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Programmable oscillators are electronic components that require some configuration before they can produce the correct output frequency. The SIT3821AI-1D-25EH is a type of programmable oscillator that is gaining popularity for its highly accurate and versatile performance. This article in particular will discuss the application field and working principle of the SIT3821AI-1D-25EH.

The SIT3821AI-1D-25EH is a programmable oscillator with a crystal frequency range from 16 MHz to 25 MHz. It is capable of delivering a precise output frequency of 1Hz to 1 MHz with a typical accuracy of ±2 ppm. This oscillator is quite versatile as it supports a wide range of user-programmable parameters, including frequency, pulse width and duty cycle. This makes it suitable for a variety of applications, such as local oscillator circuits, low frequency clock sources, and frequency synthesis.

The SIT3821AI-1D-25EH oscillator is based on the switching-coil and Zener diode working principle. It consists of a quartz crystal and two switching coils connected in series in the crystal circuitry.The two coils are connected to the Zener diode. When the Zener diode is fed with a current, the two coils create an electromagnetic field, which in turn causes the crystal to vibrate at the desired frequency.

The oscillator can be programmed for the desired output frequency and parameters. The programming is done using the SPI or I2C protocol, depending on the user’s preference. This allows for accurate and stable operation of the system. Additionally, the oscillator features a low jitter of 8ps and a wide operating temperature range from 0°C to +85°C.

To sum up, the SIT3821AI-1D-25EH oscillator is a highly accurate and versatile device suitable for a variety of applications. It features a wide operating temperature range and a low jitter performance of 8ps. Moreover, it can be programmed using either the SPI or I2C protocol, allowing users to achieve a precise output frequency with a typical accuracy of ±2 ppm.

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