SIT1602AIR1-30S

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Programmable oscillators, whether analog or digital, are used in applications where signal stability and repeatability are required. While their usage is widespread, their specific application depends on the type of oscillator used. SIT1602AIR1-30S is a special type of programmable oscillator that combines the advantageous features of both analog and digital oscillators. This article will discuss the application fields and working principle of SIT1602AIR1-30S.

Application Fields of SIT1602AIR1-30S

Due to its combination of analog and digital features, SIT1602AIR1-30S is used in a wide range of applications. Its high precision and versatility make it useful in many fields, such as:

• Sensor alarms,
• Frequency control systems for radio communications,
• Timing control for computer systems,
• Precision timing control for surveillance and other activities in law enforcement,
• Space and aviation instrumentation,
• Telecommunications systems,
• RF identification and data transmission.

The oscillator is also suitable for vibration analysis, motion control and power line carrier communications, among other applications.

Working Principle of SIT1602AIR1-30S

The oscillator works through a combination of analog and digital technologies. It is based on a quaternary PLL (Phase Locked Loop) frequency synthesizer chip, which provides a wide programmable range and the capability to synchronize with an external reference clock.

The first step for setting up the oscillator involves loading a suitable program into the chip. This program is written in Verilog code and stored in an internal memory. Once the program is loaded, the chip sends out a reference frequency which is modulated via a quaternary clocking circuit. This reference frequency is then divided into four output frequencies, which are sent out as proportional analog signals.

The second step involves using an active loop filter to fine-tune and stabilize the four output frequencies. The loop filter is comprised of three opamps connected in a series. The output of the loop filter is then combined and sent back to the quaternary clocking circuit. In this way, the oscillator is able to achieve a high degree of accuracy and stability.

The SIT1602AIR1-30S is a high-precision programmable oscillator that can be used in a wide range of applications. Its combination of analog and digital features provide excellent accuracy and stability, making it suitable for a broad range of applications.

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