840022AKI-02LF

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840022AKI-02LF is a clock generator module with features of low jitter performance, which is now widely used in many important fields, such as data center, industrial control, communication, storage, Internet of Things, etc. It has both high output accuracy and high integration and can provide stable clock signal output. This article will focus on the application of 840022AKI-02LF and its working principle.

The 840022AKI-02LF supports a wide range of output frequency rates from 128 kHz to 50 MHz, ranging from low-speed audio clock signals to high-speed digital communication standards. It is suitable for various types of circuits and systems, from high-end tooth frequency communication data centers to low-power, low-noise digital audio circuits. Its 8-ohm crystal oscillator with integrated frequency trimming function and on-chip PLL structure has excellent jitter characteristics and frequency accuracy.The built-in crystal oscillator also has very low power consumption, which can reduce the total solution power cost.

In terms of working principle, the 840022AKI-02LF is based on its phase-lock loop (PLL) circuit, which has the ability to synchronize an output signal to a stable frequency. The system is composed of three parts: the voltage-controlled oscillator (VCO), the phase detector (PD) and the frequency divider (FD). The PLL outputs the frequency which is equal to the integer multiple (N) of the input reference frequency. The output frequency is controlled by changing the voltage of the VCO, which is made possible by the feedback loop. In the 840022AKI-02LF, a voltage regulator circuit is used to regulate the input reference frequency across a wide voltage range.

Another important aspect of the working principle of 840022AKI-02LF is the frequency synthesizer. It is responsible for creating an adjustable oscillator and setting the output frequency as designed. It does this by creating different frequency signals from multiple oscillators and then combining them into a single output frequency signal. This output frequency is adjustable using a precise digital-to-frequency converter, which is controlled by the PLL.

In short, 840022AKI-02LF is widely used in the clock/timing fields including clock generators, PLLs and frequency synthesizers due to its high output accuracy and low jitter performance. The module is powered by an 8-ohm crystal oscillator with integrated frequency trimming function as well as a PLL. Meanwhile, its frequency synthesizer also enables the user to create adjustable oscillators and set the output frequency as desired. Thus, 840022AKI-02LF can provide a reliable clock signal output and is becoming the go-to choice for many important fields.

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