SIT8009BCU31-30N

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Programmable oscillators are frequency-based components designed to generate an exact output frequency based on a given input voltage. This is an essential component in many electronics applications and provides the user with a reliable, accurate and efficient oscillation source. SIT8009BCU31-30N is one of the programmable oscillator products in the market. This article will discuss its application field, working principle and construction.

Application Field

The SIT8009BCU31-30N is used for applications that require a variable frequency such as frequency synthesis, radio transceivers and phase-locked loops. It is also used in telecommunications, wireless control, Wii, HDTV and other multi-frequency applications. Additionally, it is suitable for applications in high-end data centers, medical equipment and mobile phones.

Working Principle

The SIT8009BCU31-30N works based on a common phase-locked loop (PLL) principle, which generates a variable output frequency in response to an input reference frequency. A phase locked loop (PLL) is a feedback system that compares its output frequency with a reference input signal and adjusts its operating frequency to match, resulting in a stable output. This is done by a voltage-controlled oscillator (VCO) at the output stage which is tuned via a proportional control voltage from a phase detector. This makes it possible to generate a signal at any frequency within the range of the PLL.

The SIT8009BCU31-30N contains a crystal resonator, which acts as the reference frequency signal, two precision voltage controlled varactors, and an integrated PLL, which allows for precision frequency control. The varactors are electrically tunable capacitors, used to tune the frequency of the output signal, while the PLL is used to detect and set the exact frequency of the output. When correctly programmed, the SIT8009BCU31-30N can provide a stable, highly accurate, long frequency output.

Construction

The SIT8009BCU31-30N has a standard-sized enclosure made of 4-layer PCB material. It is equipped with a 3.2mm ball-grid array (BGA) package to reduce cabling, making the SIT8009BCU31-30N a highly space-efficient component. The parts inside the enclosure include a 32.768khz crystal resonator and an 8-bit microcontroller with built-in oscillator and capture timer for precision frequency control. The SIT8009BCU31-30N also features an integrated temperature compensation circuit that ensures accurate output even at extreme temperatures.

Overall, the SIT8009BCU31-30N is a highly reliable and accurate programmable oscillator with a wide range of applications. Its accuracy is ensured by its strong temperature compensation circuitry, precision voltage-controlled varactors, and its precise voltage regulation. The SIT8009BCU31-30N is a versatile and cost-effective solution suitable for many frequency synthesis, wireless communications, home audio/video systems and automotive applications.

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