8T49N008A-040NLGI

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The 8T49N008A-040NLGI integrated circuit, or IC, is an adjustable, ultra-low jitter frequency synthesizer programmable through a digital interface, designed for clock and data distribution applications with frequencies as high as 3GHz. It is used in clock and timing circuits, as part of a clock generator, to generate a high frequency clock from a low frequency clock input. It is suitable for generating outstanding clocking performance and rock-solid stability in communications, computing, storage and consumer/multimedia devices.

The 8T49N008A-040NLGI clock synthesizer programmable clock generator is a silicon-germanium (SiGe) frequency synthesizer IC with an integrated voltage-controlled oscillator (VCO) and a wide variety of output formats. Its programmable PLL enables it to output arbitrarily programmed clocks without any additional components, allowing for a wide range of applications. A programmable integrated frequency divider further increases the flexibility of the 8T49N008A-040NLGI, and its integrated, low-jitter, VCO-based frequency synthesis and output clock switching technology provide superior jitter performance.

Working Principle

The 8T49N008A-040NLGI clock synthesizer operates by supplying a reference clock signal to the input of the integrated voltage-controlled oscillator (VCO). The VCO output is then divided by a programmable feedback divider, which controls the output frequency of the VCO, enabling the output frequency of the 8T49N008A-040NLGI to be adjusted. The output of the dividers is fed into the PLL phase detector, comprised ofmultiplier, phase detector and loop filter circuits, which detects phase errors between the input and output of the PLL by comparing the phases of the two signals. These errorsare then integrated by the loop filter and the result is used to adjust the VCO frequency. The resulting control voltage from the loop filter is then used to adjustthe VCO frequency, ensuring that the output frequency is always the same as the input reference frequency. The 8T49N008A-040NLGI then generates the desired output frequency.

Applications

The 8T49N008A-040NLGI is well suited for use in many diverse applications, such as generating high-speed clocks in communications, computing and storage systems, as well as consumer/multimedia devices. It can be used in applications requiring the simultaneous generation of multiple output frequencies in different formats, such as quad-rate LVDS and single-ended LVCMOS. The 8T49N008A-040NLGI is also well suited for applications requiring very low jitter, such as telecommunications systems, display digital interfaces and high-speed data converters. In addition, the 8T49N008A-040NLGI can be used in applications requiring high frequency, such as phase-locked loops and phase-locked-loops with external VCOs, microwave systems and multiprocessor architectures.

The 8T49N008A-040NLGI is an ideal solution for clock distribution applications, providing jitter performance better than 5ps with low power consumption, making it an attractive clock generator for use in high-performance applications. As an adjustable frequency synthesizer, it provides superior jitter performance, enabling operation with a wide range of frequencies with little to no external components required. The 8T49N008A-040NLGI also provides low power consumption and low noise, allowing for use in low-power applications. Finally, the 8T49N008A-040NLGI can be programmed through a Serial Peripheral Interface (SPI) bus, allowing for easy customization.

Conclusion

The 8T49N008A-040NLGI is a silicon-germanium clock frequency synthesizer integrated circuit (IC) with a wide variety ofor output formats, making it an excellent solution for many different clock and data distribution applications. It can be used in applications requiring simultaneous generation of multiple frequencies in different formats, as well as in applications indicating low jitter, high frequency or low-power operation. The 8T49N008A-040NLGI operates by supplying a reference clock signal to the integrated VCO, the output of which is divided by a programmable feedback divider, allowing for adjustable frequency synthesis. Finally, the 8T49N008A-040NLGI can be programmed through an SPI bus for easy customization.

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