9FGV1006A002LTGI

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9FGV1006A002LTGI is a type of Clock/Timing - Clock Generators, PLLs and Frequency Synthesizers. It is a highly integrated, low power, high performance, and high accuracy frequency synthesizer. By combining a voltage controlled oscillator (VCO), a phase detector (PFD), a charge pump (CP) and a few external passive components, it provides an economical solution to a wide variety of frequency synthesis tasks.

In the application field, 9FGV1006A002LTGI is the frequency source of choice for multi-GHz wireless communications, such as cellular base stations, mobile/cellular terminals and other microwave/millimeter-wave applications. It is also suitable for many high-performance and high speed applications, such as digital gateways, wired data communication and other frequency-dependent applications.

The working principle of 9FGV1006A002LTGI can be grouped into two parts, the phase lock loop (PLL) and frequency synthesizer design. The PLL functions to directly convert the low frequency reference oscillator signal into the output frequency signal. It is controlled by a phase detector, which compares the phase of the reference signal with that of the VCO and generates an error signal corresponding to the phase difference. The charge pump is then used to adjust the oscillating current of the VCO, and keep the phase of the reference signal and that of the VCO synchronized.

The frequency synthesizer is, on the other hand, a system of pre-set SRAM memory table, VCO and logic. The system sets the VCO frequency tuning points and the total range. The VCO is configured by setting the frequency and phase information into the SRAM memory table. The phase detector then computes the phase difference and provides an output signal based on the difference. The charge pump then adjusts the value of current so the VCO and the reference signal are matched. The output of the frequency synthesizer provides a frequency that is proportional to the frequency of the reference signal.

In summary, the 9FGV1006A002LTGI is a highly integrated, low power and high performance frequency synthesizer specially designed for multi-GHz wireless communications and many other frequency-dependent applications. Its working principle is based on both PLL and frequency synthesizer design, which means it directly converts the low frequency reference into the output frequency signal while still providing a high accuracy and stability.

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