MCK12140DG

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MCK12140DG Application Field and Working Principle

The MCK12140DG is a high resolution, low phase noise frequency synthesizer, designed for use in multiple applications including Clock/Timing and Frequency Synthesis. It is capable of generating high speed signals up to 1.2 GHz with a phase noise performance of -134.3 dBc/Hz in the 1 MHz range, making it suitable for a wide range of applications where accurate timing signals are essential.

The MCK12140DG clock generator combines a high precision PLL and direct digital synthesis (DDS) technology to deliver accurate and stable timing signals. It features adjustable gain, a low jitter internal VCXO, and a digitally controlled oscillator (DCO). The MCK12140DG also comes with an integrated reference oscillator, allowing for precise external frequency control, as well as an integrated temperature sensor for precise temperature compensation.

Applications

The MCK12140DG is suitable for use in a variety of applications, including:

• High speed clock and data recovery
• Wireless base station timing applications
• Test and measurement
• Military and aerospace applications
• Telecom transmission systems
• High density data switching systems
• Automotive electronics applications

Working Principle:

The MCK12140DG is based on a combination of direct digital synthesis (DDS) and a high precision phase locked loop (PLL). The DDS technology is used to generate a precise reference frequency, which is then synchronized to an external signal using a high precision PLL. The generated output frequency signal is then adjusted using a digitally controlled oscillator (DCO). Finally, the signal is amplified with a high linearity amplifier, providing accurate, stable timing signals wherever required.

The internal reference oscillator allows the frequency of the generated signal to be adjusted with a high degree of accuracy, while the temperature stabilized VCXO ensures that the frequency is accurately tracked over a wide temperature range. The integrated temperature sensor in the MCK12140DG is used for automatic temperature compensation, allowing for even more precise frequency control.

Conclusion

The MCK12140DG is a high performance frequency synthesizer designed to deliver accurate and stable timing signals. Its combination of high precision PLL and direct digital synthesis technologies, along with integrated temperature sensing, make it ideal for a wide range of clock and timing applications, including Wireless Base Station applications, High Density Data Switching, and Automotive Electronics.

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