DS1099U-ST+

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The DS1099U-ST+ is a fractional-N frequency synthesizer technology based on clock generator, PLLs and frequency synthesizers. This device is primarily used for applications such as wireless communication, radar, GPS and measurement & test instruments.

The principle of operation of the DS1099U-ST+ is based on the concept of fractional-N frequency synthesis. This process involves the use of a reference clock, a feedback from a VCO and a digital loop filter to generate a precisely controlled programmable frequency output. In the case of the DS1099U-ST+, the reference clock is a crystal or an external clock with a 26MHz to 50MHz frequency range. The internal feedback loop synchronizes the VCO frequency and the external clock frequency. The digital loop filter is used to control the phase difference between the reference clock, VCO and the frequency output.

The digital phase-locked loop (PLL) architecture of the DS1099U-ST+ is designed to achieve fast settling time, low phase noise and high frequency accuracy. It features an integrated voltage controlled oscillator (VCO) and a frequency divider that can be programmed to generate a wide range of frequency output. The wide frequency range and low jitter of this device make it ideal for applications that require high frequency precision, such as telecommunications, instrumentation, avionics and medical applications.

In addition to its superior frequency accuracy, the DS1099U-ST+ also offers a wide range of control features. Its Spartan-6 FPGA-based architecture includes an adjustable gain, a band gap circuit, a loop filter design with adjustable parameters, and a configurable reference clock. This allows for a high degree of customization for the applications. Some of the other features include programmable reference clock pretuning, automatic gain control and digital frequency trimming.

The DS1099U-ST+ is an ideal solution for applications that require an ultra-low jitter and high frequency precision. It offers a wide range of benefits such as fast settling time, low phase noise, wide frequency range, digital loop filter and adjustable gain control.

The advantages of the DS1099U-ST+ make it a perfect choice for a variety of applications in the wireless communication, radar, GPS and measurement & test Instruments markets. This versatile and cost-effective device can be easily integrated into existing systems and offers the highest degree of flexibility and performance in both the design and implementation phases.

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