SIT8008BIT7-18S

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Programmable oscillators are more versatile than regular fixed-frequency oscillators. This is because the adjustable oscillator put an end to the need of changing components every time the frequency needs to be changed. With programmable oscillators, not only is the frequency adjustable, but many other parameters as well.

SIT8008BIT7-18S is one type of programmable oscillator. It is a low cost and highly reliable programmable device specifically designed for data processing, communication, and instrumentation systems. It is a single-chip solution where programmability is used to provide a single source of accurately frequency-controlled timing signals in an electronic system.

Application Field of SIT8008BIT7-18S

The applications of SIT8008BIT7-18S include timing sources, frequency counters, clock sources, and data transmission pulse sources. With its programmability, it can replace many fixed-type crystal oscillators in data communication systems. This reduces the need for customizing system design and purchasing multiple crystal oscillators with different frequencies, thus resulting in cost savings.

Working Principle of SIT8008BIT7-18S

SIT8008BIT7-18S utilizes a single chip oscillator. The working principle of this device is fairly straightforward. The oscillator core circuit includes a phase-locked loop (PLL) and frequency-locked loop (FLL). The FLL works to ensure that the PLL can lock the set frequency accurately. The PLL is made up of a reference oscillator, phase frequency detector, charge pump, and voltage-controlled oscillator (VCO). When the reference oscillator is started, its signal goes through the crystal filter and to the phase frequency detector. An output signal from the PLL is then sent to the frequency divider, which divides the signal to the desired frequency by a set value. The output frequency of the VCO is thus determined from the divider setting and can be programmed using an external resistor.

SIT8008BIT7-18S also incorporates a variety of features that make it particularly useful for data communication applications. These features include an internal pull-up resistor, a high/low level output of an external resistor as an input, a clock/data output, a programmable start/stop pin, and a preset option. Furthermore, a wide temperature range of -30degreeC to +85degreeC can be programmed with this oscillator and it can also support a wide standardized frequency range of 2.5MHz to 75MHz.

To enable SIT8008BIT7-18S, it must be powered up. This can be done either with the VDD and GND pins, or with an external voltage. After power-up, the internal clock with the set frequency will become active, and oscillator\'s output can be used for timing, signaling, and data communication.

In conclusion, SIT8008BIT7-18S is a highly programmable device designed for data communication applications. With its adjustable oscillator, the frequency can be easily set to a desired value without the need for multiple components. Furthermore, the wide range of features and temperature ranges make it ideal for application in data communication systems. Since it is a low cost and reliable device, the SIT8008BIT7-18S is suitable for use in a wide range of projects.

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