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DS1086LU-533+ Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

DS1086LU-533+ is a versatile programmable clock generator and frequency synthesizer for high speed STUs, with a wide range of application fields. This clock generator has the capability to generate a wide variety of clock outputs simultaneously including crystal, spread spectrum, internal MOS gate and multi-output LVDS. It can also be used to create a custom programmable synthesis of frequency and phase, while providing selectable clock shades. Additionally, integrated loop filters can be used to reduce EMI/RFI contamination and minimize crosstalk.

Its application field includes networking, storage and computing systems, as well as various industrial ones. Based on advanced technology, this clock generator and frequency synthesizer provides remarkable benefits for customers. It delivers high accuracy and stability, drastically reducing the numbers of necessary external components. Easy interface, low-power consumption and compact size make the clock generator suitable for confined places.

DS1086LU-533+ Working Principle

DS1086LU-533+ operates by using a voltage-controlled oscillator (VCO) to generate an output frequency that is adjusted according to an input control voltage. The frequency of the output is determined by the frequency of the VCO. The multiplicative factor between the VCO frequency and the output frequency is called the modulation index. This index is used to adjust the output frequency to the desired value.

The VCO output is then filtered by a low-pass filter to reduce unwanted signals and to ensure clean frequency transitions. The output frequency is then regulated by the phase detector that compares the input clock signal with the output frequency and adjusts the output frequency if necessary.

The DS1086LU-533+ clock generator is integrated with an on-chip programmable reference source that provides an accurate reference signal conveying the frequency of the clock output. This reference source can be used to program the modulation index and the frequency of the VCO.

In addition to these features, the clock generator has an integrated phase-lock loop that provides clock features such as wide frequency control range and cycle-to-cycle jitter reduction. This phase-lock loop is used to track input frequency changes and make necessary adjustments to stabilize the phase of the output signal.

Conclusion

DS1086LU-533+ is a highly reliable, ultra-low power and precisely programmable clock generator and frequency synthesizer. It provides a wide range of application fields and its numerous features facilitate the implementation of sophisticated system-level designs. Apart from reduced design complexity, this clock generator also offers improved accuracy and increased accuracy, which provides customers with an ideal solution for standard or highly integrated clock circuits.

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