SI5335A-B04250-GM

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The SI5335A-B04250-GM is a high-performance Clock Generator, PLL, and Frequency Synthesizer that can be utilized powering a variety of different applications. It features an on-board 200MHz HCSL oscillator and an ultra-low jitter input-to-output delay of only 890ps. It also has the ability to dynamically generate frequencies up to 250MHz.

The SI5335A-B04250-GM offers a wide range of frequency selection, from 12 to 250MHz, with programmable output dividers and dividers in between the specified range. It is ideal for applications that require high-precision and low-noise clock traveling across parallel buses. The on-chip feature set allows for a single output to generate various clock outputs from one source.

In terms of applications, the SI5335A-B04250-GM can be used for Synchronous Ethernet Masters, for generating network clock for GbE and other Ethernet related applications, for telecom line drivers, to generate clock outputs for common reference clock systems, or to generate HCSL clock output for Femto cell systems. It can also be used in test-and-measurement applications where high-accuracy clocking is required.

On a high-level, the SI5335A-B04250-GM works by first receiving a low-skew external reference clock, typically in the 12-24 MHz range, and then it uses the crystal oscillator to output a 200MHz master clock. This master clock is then used to modulate the output clock duties, frequencies, and phases. In addition, there is digital programming for multiple phase-locked loops (PLL) and fractional digital locked loops (FDLL) to set up multiple digital controlled clock outputs from one source.

Lastly, the SI5335A-B04250-GM has on-chip features to reduce system complexity and power dissipation, such as integrated smoothing capacitors and a high-performance digital limited range (DLR) jitter cleaner. This DLR jitter cleaner provides a significant reduction in phase noise while overall consuming little power.

Overall, the SI5335A-B04250-GM is an excellent clock generator, PLL, and frequency synthesizer for a wide variety of applications requiring high-precision and low-noise clock signals travelling across parallel buses. It provides an output frequency range up to 250MHz with programmable dividers, and consists of on-chip features to reduce system complexity and power dissipation.

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