PL685-P8-078OC

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The PL685-P8-078OC is a popular choice among the Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers, and similar devices. The PL685-P8-078OC is a highly advanced Frequency Synthesizer/PLL (Phase-Locked Loop) from Pulse Electronics’ PMX-LF® product family that combines low power and wide supply voltage range with low noise and high frequency precision. It is designed for applications up to 2.4GHz that require narrowly spaced output frequencies.

The device offers low-power operation (4nW of power) and a wide supply voltage range between 3.3V to 5V. The wide and stable power-supply range and low passthrough accuracy guarantee uniformity of performance across all conditions. As an example, the pulse-jitter at 2.4GHz is as low as 5ps RMS, with less than 0.6ps of peak-to-peak jitter and a single-band-spur ratio of -85dBc.

As far as application field goes, the power and precision of the PL685-P8-078OC make it an ideal choice for all sorts of clock generation, PLLs, frequency synthesizers, and similar devices. The device is optimized for use in a variety of applications, such as test and measurement, photography, data acquisition, and communications systems, making it a great choice for both commercial and industrial use.

In terms of working principle, this advanced Frequency Synthesizer/PLL device uses a VCO (voltage-controlled oscillator) to generate the output frequency and a PLL loop to correct any frequency drift. The corrective action is done through a combination of a Phase Frequency Detector (PFD), a Low-Pass Filter (LPF), and a Voltage-Controlled Oscillator (VCO).

The operation is as follows: the generated clock frequency from the VCO is monitored by the PFD, which compares it to an external reference clock. Any frequency difference is then filtered out with an LPF and translated into a voltage by a slope-controlled circuit, and then applied to the VCO to adjust the output frequency and lock it to the reference frequency.

The PL685-P8-078OC is truly a great choice in Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers, and similar devices, offering high precision, low power consumption and a wide supply voltage range. And its application fields, as well as its working principle, are both easy to understand and demonstrate the wide potential for usage across a variety of industries.

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