PL602-27SC

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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers are nowadays widely used in the fields of computing, telecommunications, consumer electronics and other industrial sectors. The PL602-27SC precisely synthesizes clock signals for various types of industries, thus allowing for precision and reliability in digital technologies.

The PL602-27SC is a low-phase-noise, wide-band synthesis clock generator IC that integrates a Phase Locked Loop (PLL) on one small package. It precision synthesizes from one of two selectable input references and provides multiple output frequencies up to 1600MHz, with a total power consumption of less than 3W. The device\'s wide output frequency selection includes 27kHz to 1600MHz. The feature rich PL602-27SC is capable offrequency hopping, spread spectrum and phase jittering.

The working principle of PL602-27SC is based on the core of a PLL. The PLL Voltage Controlled Oscillator (VCO) is modeled in blocks as shown in the figure. It basically consists of an oscillator whose output frequency is controlled by a small difference between the input and the VCO signal, called the phase error.The input of the PLL can be either an internal programmable oscillator (VCTCXO) or an external reference signal, resulting in the synthesis of a desired clock or frequency signal.

The VCO loop is composed of a charge pump and a low-pass filter (loop filter). The charge pump and loop filter are the two main components that interact within the loop. The charge pump serves as a controlled current source, whose current is dependent on the sign and magnitude of the phase error signal. It sends a stream of pulses, called spikes, to the loop filter, which is normally a low-pass type, converting the current pulses into a voltage Waveform. The output voltage is then fed back to the VCO, affecting the output frequency.

The output of the PL602-27SC is generated by mixing the reference signal, provided by the internal oscillator or external reference, with the output of the VCO. By mixing the two signals with a so-called frequency synthesizer, a wide range of output frequencies is generated. The device’s frequency synthesizer can be programmed to generate up to 1600 MHz.

The PL602-27SC is suitable for applications that require a high degree of precision, such as in communication networks and data centers. Its ultralow-phase-noise clock synthesis makes it suitable for commercial and industrial applications. Its key features include its wide-band frequency range, low power consumption and flexibility, making it ideally suited for use in a variety of applications.

In conclusion, the PL602-27SC exhibits impressive specifications for applications requiring a high degree of precision in clock and frequency synthesis. Its wide-band frequency range, low power consumption, frequency hopping and spread spectrum capabilities, combined with its low jitter output and programmable features, make it an ideal choice for system designs.

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