NB3N3001DTG

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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

NB3N3001DTG is a low-voltage, wide-frequency, wide-slewing fractional-N digital frequency synthesizer designed for high integration and low power devices. The device is able to produce signals up to 10GHz, with a choice of integer-only or fractional-N modulation, low or high frequency, small or large steps, low or moderate jitter.

Applications of the device include clock and data recovery, clocking for transceivers and converters, timing synthesis for analog-to-digital and digital-to-analog converters, remotes and wireless points, clocking for test and measurement system components, low jitter clocks for high-speed ADCs and DACs, and more. The device is also suitable for synchronization in communication systems, instrumentation and embedded systems. It is especially useful for applications requiring very low power consumption.

Working Principle

The NB3N3001DTG combines a voltage-controlled oscillator (VCO) with a phase-locked loop (PLL) frequency synthesizer. The PLL allows the device to generate a range of frequencies with a high degree of accuracy and stability, while the VCO allows it to adjust the frequency to fine-tune its output. Generally, the device will produce an output signal close to the design frequency, while the loop and VCO work to keep the signal at its design frequency.

The device is designed to use a digital logic controller to adjust the frequency of each output signal. This digital logic controller monitors the device\'s output signal and controls the amount of current that flows through the VCO, which adjusts the output signal\'s frequency. The loop also works to keep the output signal as close to the design frequency as possible, by continuously adjusting the current through the VCO. This combination of control elements and feedback creates a reliable, accurately tuned frequency synthesizer.

This device is also capable of providing precise frequency adjustments through the use of a serial port that allows external software to adjust the frequencies. This feature is especially useful for quickly fine-tuning frequencies, as it eliminates the need for manual adjustment.

Conclusion

The NB3N3001DTG is a high-performance, low-voltage, wide-frequency, wide-slewing fractional-N digital frequency synthesizer. It is ideal for applications requiring very low power consumption and precise frequency adjustments. The device\'s combination of a voltage-controlled oscillator, phase-locked loop and digital logic controller gives it the accuracy, stability and versatility to meet the needs of clock and data recovery, timing synthesis and communication system synchronization applications.

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