PL685-P8-148OC-R

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The PL685-P8-148OC-R is a small clock generator module with the ability to generate accurate frequency signals in a wide range of applications. It is an octal phase-locked loop (PLL) with an integrated preamplifier and built-in voltage regulator. With a maximum output frequency of 148 MHz, the PL685-P8-148OC-R has the capability to generate both analog and digital clock signals.

This PLL clock generator module is ideal for a variety of industrial and consumer applications, including telecommunications, test and measurement, automotive, data-collection, and alarm systems. It has two operating modes and can be used as a general-purpose clock source or as a frequency synthesizer. It also has a frequency tolerance of ±25 ppm, making it suitable for precision-timing applications.

The working principle of the PL685-P8-148OC-R is based on the concept of a phase locked loop (PLL). A PLL is a feedback system that has a phase detector, a loop filter, and a voltage controlled oscillator (VCO). The phase detector compares the phase of an oscillator signal with an input reference signal. If there is a phase difference between the two, the phase detector produces an output error signal which is then used to adjust the output frequency of the oscillator so that it is in phase with the reference signal.

The PL685-P8-148OC-R also has a preamplifier which amplifies the reference signal before it is fed to the phase detector. This ensures that the reference signal is at a high enough level for the PLL to be able to detect a phase difference. The loop filter is used to smooth out the noise present in the output of the phase detector and ensure precise frequency control.

Finally, the VCO of the PL685-P8-148OC-R has a large dynamic range and is able to generate frequencies ranging from 0.001Hz to 148MHz. It has a frequency tolerance of ±25 ppm and a temperature coefficient of less than 0.2 ppm/°C making it suitable for high accuracy timing applications.

In summary, the PL685-P8-148OC-R is a clock generator module ideal for a variety of applications requiring precise frequency signals. It has a preamplifier, a phase detector, a loop filter, and a high-performance VCO, all of which make it a reliable and accurate clock source. With the capability to generate digital and analog clock signals, and a frequency tolerance within ±25 ppm, the PL685-P8-148OC-R is an excellent choice for precision-timing applications.

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