SL23EP08SI-1

The SL23EP08SI-1 is a Synthesized Clock Generator (SCG), which combines a Phase-Locked Loop (PLL) and a Frequency Synthesizer. The SCG is designed for applications in digital and mixed signal systems that require high accuracy and low jitter clocks. The SL23EP08SI-1 is an ideal solution for networking, server, telecommunications, and datacom applications where multiple high-precision clocks are needed.

SL23EP08SI-1 Application Field and Working Principle

The SL23EP08SI-1 clock generator operates at a frequency of 8.3GHz and can generate up to four differential clock outputs. The PLL integrated in the device can also produce two differential pairs of reference clocks. The reference clocks are used to reduce jitter and maintain a stable clock signal. The integrated synthesizer allows for simple, on-chip frequency adjustments. This makes it possible to generate a wide range of frequency outputs from the device, with output frequencies up to 32768MHz.

The PLL in the SL23EP08SI-1 consists of a phase-frequency detector (PFD), a voltage-controlled oscillator (VCO), a frequency divider and a charge pump. The PFD compares the input reference clock with the output frequency from the VCO, which allows for frequency and phase adjustments to achieve optimal performance. The charge pump is used to adjust the voltage of the VCO, which in turn allows for the adjustment of the frequency. The frequency divider divides the output of the VCO to the desired frequency.

The frequency synthesizer in the SL23EP08SI-1 consists of a numerically-controlled oscillator (NCO), a frequency divider chain, and two or four divide-by-two dividers. The NCO sets the output frequency. The frequency divider chain consists of a programmable divider and several cascaded dividers. The programmable divider allows the user to adjust the output frequency, while the dividing chain multiplies the output frequency by a factor of up to 64. The two or four divide-by-two dividers are used to create differential outputs from the chip.

The SL23EP08SI-1 is designed for applications where clock accuracy and stability are critical. With its integrated PLL and Frequency Synthesizer, it can generate frequency outputs with extremely low jitter and high signal purity. The frequency synthesizer also allows for fine tuning of the frequency, making it easy to produce frequency outputs at any desired rate. In addition, the device features on-chip power and ground pads, making it easy to integrate into any system.

Overall, the SL23EP08SI-1 clock generator is a versatile device that is ideal for applications requiring multiple, high-precision clock signals. Its built-in PLL and frequency synthesizer, combined with its flexible input and output options, make it a powerful solution for networking, server, telecommunications, and datacom applications where clock accuracy and stability are of the utmost importance.