DS1089LU-4CL+

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The DS1089LU-4CL+ is a frequency programmable device. It combines a voltage-controlled oscillator (VCO) and a frequency-divider to generate a range of output frequencies, programmable to within one part in 109 of the reference oscillator frequency. It is typically used as a frequency synthesizer or a frequency synthesizer generator.

Application Field

The DS1089LU-4CL+ is applicable in many areas such as clock, phase-locked loop (PLL), frequency synthesizers, local oscillator (LO) and divider, oscillator frequency, high-frequency transceivers, communications, digital signal processing (DSP), telecommunications, networking, automated test equipment (ATE), aerospace, navigation, and process control. The device comes with a wide-ranged programming capability and excellent output frequency tolerance, making it suitable for various precise and precise frequency manipulation applications.

Working Principle

The DS1089LU-4CL+ is designed to serve as a frequency synthesizer, synthesizing a precise output frequency from a reference frequency input. It works by using a voltage-controlled oscillator (VCO) with a fixed frequency range together with a frequency divider to generate the desired output frequency. The output frequency is determined by the settings of the control register and control word, with a frequency accuracy of one part-in-109. Of this register, the most significant 7 bits create the PLL divider ratio, while the remaining 15-bits determine the VCO gain. This combination allows for a wide-range of output frequencies.

The frequency adjustment is accomplished by means of digital-to-analog (D/A) and analog-to-digital (A/D) converters. The D/A converter is used to adjust the VCO gain, while the A/D converter is used to digitally adjust the PLL divider ratio. Thus, both a precise VCO frequency range and a precise output frequency can be achieved.

The DS1089LU-4CL+ is capable of generating a wide frequency range of outputs from the input reference frequency. It is also able to robustly carry out the reference clock frequency tracking and synchronization, allowing the output frequency to be synchronized to the desired reference frequency in seconds. In addition, the device is easy to configure and offers a wide frequency jitter tolerance, making it suitable for a wide range of frequency synthesis applications.

Conclusion

The DS1089LU-4CL+ is a powerful and highly accurate frequency synthesizer generator. With a wide range of programming capabilities and excellent output frequency tolerance, it is suitable for a variety of applications requiring precise frequency manipulation. It is suitable for applications such as clock, PLL, frequency synthesizers, local oscillator and divider, oscillator frequency, high-frequency transceivers, communications, digital signal processing, telecommunications, networking, automated test equipment, aerospace, navigation, and process control. As a result, it is a reliable and cost-effective solution for frequency synthesis in various industries.

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