873991AY-147LFT

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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

The 873991AY-147LFT is a versatile device employed in various clock and timing related tasks. It is a low phase noise voltage-controlled crystal oscillator (VCXO) with on-board voltage controlled phase shift (VCO) and prescaler, making it suitable for many applications. It features a wide supply voltage ranging from 2.5 Volts to 5 Volts, and can be used to generate frequency outputs as low as 5 kHz and as high as 135 MHz.

A typical application for this device is in the domain of frequency synthesizers. By varying the voltage of the VCXO, the output frequency can be adjusted over a wide range. This makes it ideal for generating non-fixed frequency clocks. It is also suitable for generating multi-phase clock signals that can be used in data conversion applications. The VCXO, in combination with the prescaler, can be used to generate a variety of different frequency dividers.

Another important application area is clock generation. Digital systems such as microprocessors and digital signal processing (DSP) systems often require timing signals of various frequencies to ensure synchronization and accurate data processing. The 873991AY-147LFT can be used to generate such clock signals. Furthermore, the device\'s low phase noise makes it suitable for generating clocks used in communication systems, as low phase noise reduces interference with signals.

The 873991AY-147LFT is based on a PLL (phase-locked loop) principle, where an oscillator is syncronized to an incoming signal and then used to create output signals. The incoming signal is typically a reference frequency, and the output of the device is a frequency ratio of the incoming signal. By adjusting the components of the PLL, the output frequency can be precisely tuned to the required frequency. The 873991AY-147LFT also features an integrated voltage-controlled phase shifter (VCO) to ensure that the output frequency is accurately synchronized to the incoming signal.

In summary, the 873991AY-147LFT is a versatile device used in clock and timing related applications. It is suitable for generating frequency synthesizers, and can also be used for generating clocks for digital systems. Its low phase noise makes it suitable for use in communication systems, and the integrated voltage-controlled phase shifter ensures accurate synchronization to incoming signals.

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