SI5351B-B03844-GMR

The SI5351B-B03844-GMR is a clock generator IC, a member of the Clock/Timing - Clock Generators, PLLs, and Frequency Synthesizers group. Broadly speaking, these ICs function to produce a range of clock frequencies and signals. In particular, the SI5351B-B03844-GMR is a highly configurable and efficient clock generator, providing a wide range of clock frequencies from a single crystal oscillator.

The SI5351B-B03844-GMR is designed to meet the requirement for a low jitter, low power clock generator. It’s suitable for use in a wide range of applications, from industrial to consumer electronics. The SI5351B-B03844-GMR allows for accurate and reliable clock signal generation for sophisticated clock designs, without the need for complicated external components.

The SI5351B-B03844-GMR provides a multitude of features, from low power consumption and wide operating temperature, to synthesized and fractional-N PLL mode, configurable output drivers, integrated output resistors, active-low output enable and readback features. Its wide selection of features can help optimize the design, resulting in a lower BOM cost, a reduced design footprint, and an enhanced system performance.

The SI5351B-B03844-GMR employs a low power all digital Phase Locked Loop (PLL) to generate a variety of clock signals over a wide range of frequencies. It synthesizes the output frequencies from a single clock source, rather than having to implement multiple clock sources. This allows for smaller board space requirements, and a lower component count which results in lower power consumption, as well as cost savings.

The clock outputs of the SI5351B-B03844-GMR can be programmed to any frequency between 4kHz and 400MHz, making it suitable for a variety of applications, such as communication systems, video/audio processing, instrumentation, and more. On the clock generator IC, the user can choose to have a single, dual, or triple output, depending on the application requirements, and can select the output drive strength for each of the clock outputs.

In terms of its working principle, the SI5351B-B03844-GMR utilizes a phase-locked loop (PLL) to synthesize multiple clock outputs from a single clock source. The PLL of the clock generator IC is driven by a high-precision crystal oscillator and the output frequencies are generated by programming the internal frequency synthesizer. The internal intricate elements of the PLL such as the filters, dividers, and amplifiers, create the output clock signals, with no external components required.

The SI5351B-B03844-GMR also offers precision and control over the clock outputs. Thanks to its on-chip programmability, users can adjust the clock output frequencies with a resolution of 0.083Hz. Additionally, the output frequencies are also programmable with a fractional division ratio of up to 128. It’s also possible to select different drive strengths for each output clock, allowing the design engineer to tailor the clock generator to specific application requirements.

In conclusion, the SI5351B-B03844-GMR is one of the most comprehensive and highly configurable clock generator ICs on the market. With its high accuracy, low power consumption, wide range of programmable frequencies, and ease of use, this clock generator can provide reliable clock signals for a variety of applications. Its wide selection of features and its operation make it a great choice for clock signal designs.