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Programmable Oscillators

SIT9002AI-18H33SD Application Field and Working Principle

Programmable oscillators are electrical circuits that generate oscillations of a desired frequency. Commonly used in electronic and radio equipment, they serve as the timing element of a circuit, controlling the frequency of its oscillations. The most popular types of programmable oscillators are those that have built-in frequency-selection controls and those that can be programmed with a software interface.

The SIT9002AI-18H33SD programmable oscillator is a custom, high-quality programmable oscillator designed for use in medical devices and other highly reliable applications. It is a low-cost quadrature oscillator with a wide frequency range, high frequency accuracy, low power consumption, and low jitter performance. It is available in two form factors, standard (18H33SD) and flush-mount (18H38SD).

The SIT9002AI-18H33SD is a fully programmable oscillator with a wide frequency range of 16 MHz to 500 MHz. It has a frequency accuracy of 0.001%, a low power consumption of 6 mW/MHz (when operating between 16 and 250 MHz), and a low jitter performance of 0.2 ps RMS. It also has an on-board frequency selection control and a software interface for programming. The 18H33SD form factor is a standard SMT package with an exposed pad, which allows it to be soldered directly onto the board. And the 18H38SD form factor is a surface-mount package with a pre-mounted ground disc for enhanced robustness and rigidity.

When the SIT9002AI-18H33SD is powered up, it starts up in a default MHz frequency. Then, the user can select the desired frequency with either the onboard frequency selection control or the software interface. The internal clock divider circuit can further divide the frequency as necessary. The oscillator then generates an output signal at the selected frequency with a maximum load of 48mA. The signal is then buffered with an output buffer before it is sent into the system. With an appropriate control circuit, it is possible to control the frequency in real time.

The SIT9002AI-18H33SD is a reliable and cost-effective programmable oscillator suitable for use in a variety of applications. It has a wide frequency range, high frequency accuracy, low power consumption, and low jitter performance. And, its two form factors, standard and flush-mount, offer enhanced robustness and ease of use. It is a great choice for applications where frequency accuracy, stability, and reliability are critical.

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