5P49V5901B702NLGI8

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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

The 5P49V5901B702NLGI8 is an integrated, low-power, low-jitter clock generator. It combines the features of a clock generator, which include support for multiple clock outputs and low skew, with the features of a frequency synthesizer, which finds applications in a variety of industries for tasks such as frequency conversion and signal synchronization. Both clock generation and frequency synthesization in the 5P49V5901B702NLGI8 are accomplished by the use of phase locked loops (PLLs).

PLLs are used in the 5P49V5901B702NLGI8 to compare an input reference clock with a feedback clock signal. The feedback signal corresponds to the output of an internal voltage controlled oscillator, which is in turn generated by the PLL. The PLLs in the 5P49V5901B702NLGI8 continually adjust the frequency of the internal clock so that the phase difference between the reference and feedback clocks is minimized. This process of phase comparison and frequency adjustment results in a wider range of output frequencies than what can be obtained with a straightforward clock generator.

The process by which the PLLs in the 5P49V5901B702NLGI8 maintain synchronization between the reference and feedback clocks is known as phase-locked loop (PLL) phase control. The PLL controller serves the purpose of steering the feedback clock so that the phase of the voltage controlled oscillator is coincident with the period of a reference clock. A phase detector is used to compare the phase of the reference clock with the phase of the feedback clock and to generate a control voltage depending on the phase difference between the two signals.

The 5P49V5901B702NLGI8 has four independent PLLs. Each PLL has a separate oscillator with a wide range of frequency adjustment. The device also features an ultra-low jitter operation mode for a more consistent clock performance. The 5P49V5901B702NLGI8 supports a wide range of clock outputs from 1.8 to 5.5 V, allowing for use with both 3.3V and 5V logic. It offers an external voltage control which allows the user to adjust the PLL frequency parameters. It is available in both surface mount and through hole packages.

The 5P49V5901B702NLGI8 supports a number of different applications. It is commonly used in embedded systems, where it can be used to synchronize multiple clock domains or to serve as the primary clock source. It is also used in high-end workstations or server systems, where it can generate a stable and reliable clock source to ensure system stability and performance. Its low-jitter operation mode is particularly suited for applications in radio, telecoms and digital video.

In summary, the 5P49V5901B702NLGI8 is a low-power and low-jitter clock generator and frequency synthesizer. Its four independent PLLs enable it to generate clock signals over a wide range of frequencies and its wide range of clock outputs make it suitable for use with a variety of logic systems. Its low-jitter mode and wide output range make it an ideal choice for applications in radio, telecoms, digital video and embedded systems.

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