SI5342A-C05089-GMR

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The SI5342A-C05089-GMR is a PLL based clock generator, frequency synthesizer, and frequency multiplier which is used in a wide variety of clock and timing applications to provide ultra-low jitter performance. The device is capable of generating frequencies up to 622 MHz. It has an integrated digital loop filter, high-stability voltage-controlled oscillator, and a programmable output divider. It also contains a fractional-N/integer-N phase detector and on-chip clock multiplier for better accuracy.

The SI5342A-C05089-GMR utilizes a phase-locked loop (PLL) where an incoming reference clock frequency is compared to a predetermined output frequency. This comparison is done by means of a phase detector, which looks for differences between the two frequencies. Any differences between the reference and output frequencies are then processed by a loop filter, which adjusts the voltage of the voltage-controlled oscillator (VCO) and brings the output frequency in line with the reference frequency. Due to this feedback mechanism, the PLL generates very low jitter and is highly accurate in terms of frequency stability.

The SI5342A-C05089-GMR also utilizes an on-chip clock multiplier, which allows the user to generate an output frequency that is an integer multiple of the reference frequency, up to six times (6x). This feature makes the device ideal for applications that require higher frequencies than what is available from the reference source, such as gigabit Ethernet, 10Gigabit Ethernet, and Fibre Channel.

In addition to the clock multiplier, the SI5342A-C05089-GMR has a programmable output divider, for dividing the output frequency by a factor of up to 128. This feature gives the user the flexibility to generate any desired frequency from the reference clock source.

The SI5342A-C05089-GMR also has an integrated digital loop filter, which helps to minimize jitter and provide excellent jitter performance. This feature makes the device ideal for applications that require extremely low jitter and/or very low frequency drift.

Overall, the SI5342A-C05089-GMR is an excellent choice for a clock generator, frequency synthesizer, and/or frequency multiplier. Its low jitter performance, wide frequency range, and programmable clock multiplier and divider make it ideal for a variety of clock and timing applications. It is particularly well-suited for high-speed communication applications, such as gigabit Ethernet, 10Gigabit Ethernet, and Fibre Channel.

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