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840004AGI-01LFT Application Field and Working Principle

The 840004AGI-01LFT is a clock generator designed for high speed communication systems and other digital systems, such as Ethernet switches, routers and network adapters. It has a frequency range of up to 20GHz and provides high-fidelity clock signals with very low jitter, making it an excellent choice for high-fidelity and low-jitter clock generation. The clock generator is based on a phase-locked loop (PLL) technology and uses an on-board crystal oscillator as its reference clock.

PLL Technology

A PLL is a feedback control system that consists of a phase detector, a low-pass filter, an oscillator and a divider. The PLL circuitry compares the phase of an input and an output of the oscillator and adjusts its frequency to ensure the phase is locked and the oscillator always remains on the reference clock frequency. The clock generator uses PLL technology to generate the required clock signals with high fidelity and low jitter.

Frequency Synthesis

Frequency synthesis is a procedure by which the output frequency of a clock generator is varied without changing the frequency of the reference oscillator. The 840004AGI-01LFT can generate clock signals with a range of frequency from 2GHz to 20GHz using a single crystal oscillator. This is made possible through the use of dividers, phase shifters and prescalers. The dividers and prescalers reduce the frequency of the reference oscillator before it enters the PLL circuitry, while the phase shifters adjust the phase of the input clock signal to lock the phase of the output clock signal.

Applications

The 840004AGI-01LFT is well suited for use in high speed communication systems and other digital systems, such as Ethernet switches, routers and network adapters. The wide frequency range and high fidelity of the generated clock signals make it ideal for applications requiring low jitter and accuracy.

Conclusion

The 840004AGI-01LFT is a clock generator designed for high speed communication systems and digital systems. It is based on a PLL technology and uses an on-board crystal oscillator as its reference clock. The clock generator has a frequency range of up to 20GHz and provides high-fidelity clock signals with very low jitter. It is suitable for applications requiring low jitter and accuracy.

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