PL565-37QC-R

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The PL565-37QC-R integrated circuit can be categorized as a Clock Generator, Phase Locked Loop (PLL) and Frequency Synthesizer. It provides users with a programmable output frequency up to 37GHz and a fractional as well as integer frequency source.

A PLL integrated circuit such as the PL565-37QC-R is used for a number of applications in which precise synchronization between two or more signals is important. These can include frequency synthesizers, phase locked loops, clock and data recovery (CDR) circuits, squelch, phase interpolator, DWM, or T/R circuits, radio-frequency (RF) synthesis and modulation, frequency multiplier, period synchronization, frequency multiplication, phase shifting, and filtering.

The key purpose of a PL565-37QC-R is to take an automatically calibrated reference frequency and convert it into a user-defined frequency while remaining phase-locked. It can also be used as a frequency synthesizer, taking a low frequency input and multiplying it to a usable, high frequency range.

The PL565-37QC-R is manufactured using an advanced, high-frequency process and utilizes a combination of Integer and Fractional-N synthesizer system, allowing users to choose the exact output frequency they require with extremely high accuracy. The internal oscillator is also very stable, allowing for tight frequency control and low jitter.

The PL565-37QC-R features two integrated differential outputs, as well as a single-ended output. The differential outputs are provided for higher rejection from external noise and allow for phase locking of two signals at various frequencies. Moreover, an integrated prescaler and phase frequency detector (PFD) are included, which allows for finer frequency resolution.

The PL565-37QC-R offers two power supply options for the device, a 1V single-ended supply or a split 1.2V/1.35V dual supply, providing users with more flexibility when utilizing the device in a variety of applications.

The working principle of the PL565-37QC-R is quite simple. It utilizes a phase-locked loop to achieve synchronization between the input reference frequency and the desired output frequency. The reference frequency is applied to a phase frequency detector (PFD) and compared to the feedback signal of the VCO. The output of the PFD is then used to adjust the control voltage of the VCO, thus synchronizing the output frequency with the input reference frequency.

The PFD and VCO are necessary components for the PLL to function, and must work together in order to achieve synchronization. The PFD is responsible for converting the reference frequency source and the feedback signal from the VCO into a voltage adjustment for the VCO control voltage. The VCO is the main component of the PLL, which takes the control voltage from the PFD and outputs the desired frequency.

The PL565-37QC-R offers users a wide range of applications, from frequency synthesizers and clock recovery/generation to communication and instrumentation systems. With its fractional and integer frequency source and internal oscillator, the PL565-37QC-R provides precise synchronization, allowing for tight frequency control and low jitter.

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