PL502-03SC-R

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PL502-03SC-R is a frequency generator, a component of Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers. It provides very efficient 2GHz frequency generation with a phase-lock loop (PLL)-based synthesizer. It is especially suitable for applications that require a small form factor. It is also able to generate a wide range of frequencies from 1MHz up to 2GHz with a resolution of 1 kHz.

This frequency generator implements a highly integrated Phase Locked Loop (PLL) based frequency synthesizer, which is able to produce a wide range of output frequencies. The PLL consists of two parts: the reference oscillator and the voltage-controlled oscillator (VCO). The reference oscillator provides a fixed frequency to the PLL as its reference clock that is used to set the desired output frequency. The VCO is then used to produce a signal at the desired output frequency. The output frequency is determined by the reference frequency and the ratio between the reference frequency and the output frequency.

The main application fields of a PL502-03SC-R frequency generator include wireless communications systems, wireless modems, satellite receivers, video systems, and other systems that require a 2GHz frequency generator in a compact form factor. It is suitable for those applications where precision tuning and fast switching between different frequencies are required.

In terms of its working principle, the frequency generator utilizes a PLL-based frequency synthesizer to generate an output frequency. The PLL consists of two parts: the reference oscillator and the voltage-controlled oscillator (VCO). The reference oscillator provides a fixed frequency to the PLL as its reference clock. The VCO is then used to generate the output frequency. The required output frequency is determined by the ratio between the reference frequency and the output frequency. When the voltage-controlled oscillator is tuned to the proper frequency, the output frequency is the desired output frequency determined by the ratio.

This PLL-based frequency synthesizer utilizes a feed-forward loop to control the output frequency. The reference clock from the reference oscillator is fed from the PLL to a phase-frequency detector. The phase-frequency detector compares the input reference clock frequency with the VCO frequency and generates an error voltage, which is sent to a voltage-controlled amplifier. The amplifier then amplifies the error voltage and feeds it to the VCO, thus controlling the output frequency of the frequency generator.

This closed-loop control loop is known as a "feed-forward system". The error voltage is used to adjust the output frequency and keep it locked to the reference frequency based on the ratio. This allows for very precise tuning and fast switching between multiple frequencies. The speed of the switching is determined by the control loop\'s response time and the frequency of the VCO, which can be adjusted in software.

In summary, the PL502-03SC-R frequency generator is an important component of Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers. Its main application fields include wireless communications systems, wireless modems, satellite receivers, video systems, and other systems that require a 2GHz frequency generator in a compact form factor. Its working principle utilizes a PLL-based frequency synthesizer with a feed-forward loop for precise tuning and fast switching between different frequencies.

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