SIT9005ACR2H-30NC

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Programmable oscillators are devices designed to generate electrical signals of precise frequency, usually from an internal or external reference clock source. SIT9005A CR2H-30NC programmable oscillators are a class of semiconductor devices consisting of an oscillator, one or more frequency dividers, an amplifier and other components, which allow for a precise tuneable output frequency. The oscillator can be programmed through an external controller, an MCU interface, or a set of resistors, capacitors and switches.

The SIT9005A CR2H-30NC controller integrated circuit can be operated in either one of two frequencies: a low-frequency mode (LFM) or a high-frequency mode (HFM). In Low-Frequency Mode (LFM), the SIT9005A is capable of working with a Main Frequency from 50 kHz to 1 MHz, with a Fine Frequency that goes from 50 kHz to 1 MHz, adjustable in steps of 0.1 kHz. Both frequencies are independently adjustable for optimum output waveform characteristics. In High-Frequency Mode (HFM), the Main Frequency can range from 1 to 30 MHz and the Fine Frequency can vary from 0 to 30 MHz, also adjustable in steps of 0.1 kHz.

The output frequency of the SIT9005A CR2H-30NC can be further fine-tuned using programming inputs, resistors, capacitors, switches or digital control ports, making it very easy to configure the device for specific frequencies. The SIT9005A CR2H-30NC is also a wide dynamic range oscillator, which means it can cover a wide frequency range and also offers low power consumption and high jitter immunity.

In terms of its working principle, the SIT9005A CR2H-30NC programmable oscillator comprises of a voltage-controlled oscillator with a PLL (phase-locked loop) that allows the frequency to be tuned. The PLL consists of the oscillator and a frequency divider. The frequency divider divides the reference clock frequency by a predetermined amount and feeds it to the oscillator. The output frequency of the oscillator is then adjusted to increase or decrease according to the predetermined amount until the difference between the two frequencies is minimized. This process is called phase-locking or frequency-locking. The oscillator then follows the reference frequency and produces an output waveform of the same frequency.

The SIT9005A CR2H-30NC programmable oscillator is suitable for a wide range of applications including frequency synthesizers, clock generators, PLLs, microcontroller and processor clocking, and more. It is also stable, reliable and easy to use. This makes it an ideal choice for many applications requiring a precise and powerful oscillator.

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