PCI-Express Clock Generator

This reference design is a frequency generator for use in synchronizing a circuit’s operation. It consumes less than 50mW of power that specifically uses the IDT’s 9FGV0241 PCI-Express Clock Generator which is the lowest-power PCI Express timing family. It is a two output clock generator with programmable output amplitude allowing tuning for various application environments.

The circuit reduces heat dissipation to ease cooling requirements in large scale cloud computing applications. It has a programmable slew rate allowing tuning for various line lengths with an integrated output termination of 100Ω, providing maximum flexibility when working in a non-homogenous timing environment. In addition, the device has an external 25MHz crystal that supports tight parts per million (ppm) with 0 ppm synthesis error.

These clock synthesizers have various applications such as communications, computing, and consumer goods. Most members of IDT timing family feature a selectable SMBus address so that multiple devices can seamlessly share the same SMBus segment without the cumbersome additional logic that is often required with other solutions.

PCI-Express Clock Generator – [Link]

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