SI5328C-C-GMR

Clock/Timing - Application Specific

Silicon Laboratories’ SI5328C-C-GMR is a precision differential-clock distribution IC, capable of working at frequencies from 1 MHz up to 725 MHz. Its digital control and versatile input/output testing capabilities make it a reliable choice for products requiring digital timing accuracy and synchronization. This article will discuss the application fields for the SI5328C-C-GMR, as well as go over its working principle.

Application Fields

The SI5328C-C-GMR is well suited for a wide range of application fields due to its high-frequency range. These application fields include:

• Data transfer between processors
• Syncing of ADC and DAC clocks
• Conversion between different clock architectures
• Sampling of high-frequency data on multiple processors
• Real-time time-stamping in distributed systems
• Generation of multiple types of clocks

The SI5328C-C-GMR can also be used in conjunction with other clock components, such as oscillators and frequency synthesizers, to provide jitter-free synchronization for high-frequency applications.

Working Principle

The SI5328C-C-GMR works on a differential-clock distribution principle. This means that the input clock is split into two separate and distinct signals – an A and a B signal. These signals are then transmitted to the separate inputs of the data device, and then reconstructed into a single clock. This system helps to ensure accuracy in the data transfer between different types of devices, and helps to reduce the amount of jitter in the clock distribution.

The SI5328C-C-GMR allows for multiple differential signals to be transmitted from the master device to different slaves. The number and type of signals transmitted is determined by the application, and is easily programmable by the user. This allows for a wide range of applications to be implemented with the SI5328C-C-GMR.

On-Chip Test Features

The SI5328C-C-GMR also comes with a variety of on-chip test features, designed to help ensure accuracy in the clock distribution. These features include:

• A jitter tester, which monitors the jitter of the incoming clock and helps to ensure a reliable output clock.
• A spread spectrum circuit, which reduces peak jitter in the output clock. This is especially useful in high-frequency applications, where jitter is a major factor.
• A skew tester, which helps to determine the accuracy of the input and output clocks.
• An adjustable loop bandwidth, which can be set to allow the clock distribution system to adapt to the specific application it is used for.

Conclusion

The SI5328C-C-GMR is a precision differential-clock distribution IC, designed to provide accurate timing and synchronization in a wide range of applications. Its on-chip test features help to ensure that the clock distribution is working correctly, and can be adjusted to suit the needs of the application.