SI5351A-B06168-GTR

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The SI5351A-B06168-GTR is a Clock Generator from Silicon Labs and belongs to the Clock / Timing - Clock Generators, PLLs, Frequency Synthesizers device family.

This device has a wide frequency range of up to 170MHz, an external 25MHz reference clock, with programmable clock dividers and output drivers that allow it to be used in a variety of applications. For example, it can be used to generate precise clock signals for digital signal processing, such as in a digital audio processor, or for timing control, such as to generate timing pulses for motor control systems. The device also features programmable phase jitter and integrated EMI filters, which make it ideal for use in a wide range of applications.

The SI5351A-B06168-GTR leverages the advantages of Silicon Labs\' patented MultiSynth fractional synthesizer technology, which provides the flexibility to divide the 25 MHz reference clock by any integer from 1 to 122. This allows for far more precise control over clock frequency and phase than is possible with other crystal oscillator-based solutions. The device also features asynchronous and synchronous watchdogs for high reliability operation, adjustable output drive strength for interfacing to different loads, and fast lock times for its outputs.

The working principle of the SI5351A-B06168-GTR is quite simple. A 25MHz reference clock signal is first used to drive the internal clock oscillator. The output frequency can then be adjusted by programming the internal clock divide ratios through the device’s input/output control pins.

When the device is first powered up, the Frequency Synthesizer uses the reference clock and its internal divide ratios to generate a signal at the required output frequency. The internal precision clock can then be further adjusted using the internal fine frequency adjustment feature and with the integrated PLLs, which can synchronize the device\'s outputs to any other signal.

The SI5351A-B06168-GTR offers superior accuracy, jitter, and stability over other available clock generators, and its wide frequency range and adjustable outputs make it an ideal choice for a variety of clock and timing generation applications. Additionally, the device features Integrated EMI filters and can be used in high-temperature applications, making it suitable for a variety of industrial and military applications.

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