SL28PCIE30ALC

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SL28PCIE30ALC is the latest in the line of clock generators, PLLs, and frequency synthesizers released by NXP Semiconductors. This unit is designed to provide time management, clocking, and regulation requirements for today\'s most advanced computers, servers, and storage systems. It employs a hybrid of analog and digital techniques to create an efficient clock generator or frequency synthesizer supporting up to six outputs. The unit has a wide range of short-term and long-term stability requirements and provides useful features such as PLLSpread, programmable phase shift, low output jitter, and frequency range capability.

The application field of SL28PCIE30ALC covers the traditional usage of a PLL in an oscillator, clock generator, and frequency synthesizer for computers, servers and storage systems. It is ideal for low power system applications and architectures requiring high accuracy synchronization and timing. Also, it is well suited for applications using multiple output frequencies such as A/D, D/A converters, and video/audio synchronization.

The working principle of SL28PCIE30ALC is to use the high-speed direct digital synthesis (DDS) operating with a high resolution, 24-bit frequency control word. The DDS is used to connect with an external active PLL loop filter and voltage-controlled crystal oscillator (VCXO) circuit. The VCXO coupled with the 24-bit frequency control word and a range of programmable parameters (such as spread amount, frequency ratio) can adjust the frequency of the resulting output clock, and the loop bandwidth results in a fast lock time. The low output jitter of SL28PCIE30ALC guaranteed by its low-noise jitter filter. The PLL Spread feature helps reduce the early settling time in single output PLL designs and enable the designer to set a spreading amount or frequency range when operating in a multi-reference PLL mode.

SL28PCIE30ALC provides a solution for the growing clock/timing needs of system designers. Its use of digital techniques and programmable parameters provide very low power consumption and wide frequency range for various applications. The unit supports up to 6 output clocks with programmable frequency range and ratio. The low jitter output, fast lock time, and PLLSpread capabilities are valuable features that enable designers to meet their timing objectives. The compact package and low power consumption make it a good choice for today\'s applications with limited space and efficiency requirements.

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