843001AG-21LFT

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843001AG-21LFT Application Field and Working Principle

843001AG-21LFT Data sheet describes that it is a high performance and high frequency product. It is designed for systems seeking the lowest jitter performance over different temperature range and frequency outputs to support the latest generation of high speed programmable logic devices such as FPGA and ASIC. 843001AG-21LFT clocks come in designs ranging from 200 to 400MHz and possess exceptional jitter and noise performance for high-speed interface.

843001AG-21LFT main application is for creating the clock signal to synchronize various components of the system and creating clocking signals required by each different IC or module of the entire system. This is generally done using a PLL circuit or a series of PLLs and frequency multipliers. The PLL will take a reference input and lock it to the output frequency defined by the application design typically the system clock or maximum clock frequency of the IC.

What is a PLL?

PLL stands for phase locked loop which is an analog circuit found in clock generators, frequency synthesizers and clock dividers. While it is mainly used for frequency multiplication and synchronization, it can also be used for frequency division and phase-shift modulation. A basic phase-locked-loop consists of several components such as a voltage controlled oscillator, a phase detector, low pass filter and a reference oscillator.

Working Principle of 843001AG-21LFT

Before understanding 843001AG-21LFT working principle, one must first understand the concept of a phase-locked loop or PLL. A PLL is basically a type of negative feedback system that is commonly used to synchronize digital signal processing (DSP) and data communications systems. It essentially takes an input signal, usually a reference clock and modifies it so that the output signal is locked to a desired frequency based on the frequency of the reference clock.

The 843001AG-21LFT device works by using a PLL to generate a frequency synthesized output signal from a reference input. The PLL consists of two main blocks: the phase detector and the voltage controlled oscillator. Incoming reference clock signal is compared to the frequency of the output signal of the VCO to determine the phase and frequency difference. This difference is then used to adjust the frequency of the VCO through the low pass filter.

The 843001AG-21LFT device is a high performance clock generator that utilizes PLL architecture to achieve low jitter performance over different temperature range and frequency outputs. It has excellent performance when compared to its price. The 843001AG-21LFT is designed to support the latest generation of high speed programmable logic devices such as FPGA and ASIC.

Conclusion

The 843001AG-21LFT is an excellent choice for clock synchronization, specifically when used with high speed digital circuits. It provides excellent jitter and noise performance, low power consumption and can operate over a wide range of temperature and frequencies. It utilizes a PLL circuit to generate the frequency synthesized output signal from its reference input which makes it easy to use and highly efficient.

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