SIT9003AI-1-25DO

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Programmable Oscillators: SIT9003AI-1-25DO application field and working principle

Programmable oscillators are widely used in modern electronics and have been applied in industries including communication systems, robotics, industrial control, computer, and consumer electronic products, among many others. The Sit9003AI-1-25DO is an example of a programmable oscillator, which stands out from other oscillators due to its excellent frequency accuracy, wide voltage range, and wide temperature range.

The Sit9003AI-1-25DO operates in a frequency range of 27.5 MHz to 30 MHz, and it is temperature compensated from -45℃ to +135℃. Its supply voltage is from 3.0V to 5.5V and its power consumption mode is stand-by mode. The programmable oscillator is mounted on a DIP-8 package with eight pins and is quite compact which allows it to fit easily into a wide range of applications.

The Sit9003AI-1-25DO is ideal for applications that have stringent timing requirements, such as in wireless communication systems, base stations, and other communication equipment. In addition, it is also suitable for automotive electronics, consumer electronic products, and general electronic products such as printers, air conditioners, and security systems. In these applications, the SIT9003AI-1-25DO can provide accurate, low-noise clock signals so that other integrated circuits can accurately transfer and decode data.

The main working principle behind the Sit9003AI-1-25DO is based on PLL (Phase Locked Loop) technology. The oscillator utilizes the principle of frequency synthesis to generate accurate clock signals. It has a digital frequency control port that provides a reference frequency that is used to program the output frequency of the oscillator.

The PLL of the Sit9003AI-1-25DO includes frequency divider, phase detector, filter, and voltage control oscillator (VCO). The frequency divider divides the reference frequency and the output frequency of VCO. The phase detector compares the phase difference between the divided reference frequency and the output frequency of VCO. The filter produces the control voltage for VCO according to the resultant phase difference. On the other hand, VCO produces and outputs the accurate clock signals which is phase locked with the reference frequency.

The Sit9003AI-1-25DO programming takes place through the use of 8-bit port pins, which allows up to 256 different frequency outputs with only one part number. Thus it offers users several cost saving and design time saving benefits in comparison with other oscillators, such as not needing to stock multiple versions to get the required frequencies needed.

All in all, the Sit9003AI-1-25DO has wide application field and benefits. It is a reliable programmable oscillator which provides more precise and accurate clock signals in communication systems, industrial control and many other applications.

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