SI5350C-B04433-GT

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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

The SI5350C-B04433-GT is an ultra-low jitter clock generator and jitter attenuator for telecommunications and datacom applications. It can be used to generate high output frequency clocks from very low input clock frequencies, as well as to provide very low jitter clock outputs from high input jitter clocks. This device is a highly-integrated timing circuitry solution which includes a VCO, loop filter, programmable dividers, phase-frequency detectors (PFD) and phase and frequency detectors (PFD).

Application Field

The SI5350C-B04433-GT is suitable for applications in telecommunications, communications, datacom and other industries. Its range of features make it an ideal solution for applications such as SONET/SDH, OC-x and Ethernet, where ultra low jitter clocking is a must. The device can be used in networks, routers, switches, storage systems, servers and other storage and telecommunications applications such as cellular base stations.

Working Principle

The SI5350C-B04433-GT supports both single-ended and differential crystal and clock inputs. These inputs can be used to generate high frequency clocks from low input frequencies, as well as to provide very low jitter clocks from high input jitter clocks. All of these functions are achieved through a combination of a VCO, programmable dividers, PFDs, and an on-chip loop filter with adjustable bandwidth.

The output frequency of the device can be programmed in several ways: either via a step programming input, or by using a high-speed serial programming interface. The frequency accuracy of the device is typically within +/- 0.8ps peak jitter. This allows for extremely low jitter clock output even when presented with high input jitter clocks.

The SI5350C-B04433-GT is also available with integrated clock synthesis and jitter attenuation features. Clock synthesis allows the device to generate a wide range of frequencies by simply providing a reference clock frequency and setting the appropriate dividers. Jitter attenuation features allow the device to achieve very low output jitter, even when presented with a high input jitter clock.

In addition to its excellent jitter performance, the SI5350C-B04433-GT is also extremely flexible, allowing it to be used in a variety of applications. Its on-chip programmability, wide frequency range and jitter attenuation capabilities make it an ideal choice for many communication and datacom applications.

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