PL520-20DC

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PL520-20DC is a high-performance clock generator, which is mainly used in communications, video, computing and other applications. It is designed to generate any frequency combination from 800MHz to 2.4GHz for applications where jitter and accuracy are critical. Besides, it also supports a wide range of input frequencies, voltage ranges and differential clock inputs, providing users the flexibility and the precision they need.

The PL520-20DC consists of a phase-locked loop (PLL), a voltage-controlled oscillator (VCO), a low-pass filter (LPF) and a crystal oscillator. The PLL uses a reference clock signal as input, then multiplies it by a factor to generate a precise output signal. The output signal is then fed to the LPF, which removes any undesirable frequencies, such as harmonic noise. The LPF output is then sent to the VCO. The VCO converts the filtered signal into a voltage of desired frequency, which is then sent to the crystal oscillator, where the signal is amplified and the frequency is increased.

The PLL is responsible for generating a stable and accurate frequency, while the VCO is responsible for generating a precise output frequency. This output frequency can be further adjusted for a higher precision by adjusting the external control voltage. In addition, the PL520-20DC also has an internal temperature-compensated voltage reference to ensure that the output frequency is always accurate, even when the ambient temperature fluctuates.

The PL520-20DC can be used in a wide variety of applications including cellular base stations, networking, digital TV and satellite communications. In cellular base stations, the clock generator can be used to provide the precise synchronization needed to multiplex multiple carriers. It can also be used in digital TV to ensure that the received digital signals are accurate and without jitter. In satellite communications, it can be used to ensure that signals transmitted from the Earth are of the correct frequency and with minimal jitter.

In conclusion, the PL520-20DC is a high performance clock generator which is designed to provide precise, low-jitter frequencies for a variety of applications. It consists of a PLL, VCO, LPF and crystal oscillator, and uses an internal temperature-compensated voltage reference for accuracy. Furthermore, it can be used in cellular base stations, digital TV, and satellite communications to ensure accuracy and reduce jitter.

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