Industry-leading PCI Express Clock Solutions

Renesas has been first to market in PCI Express clocking and timing since its inception:

With expertise with leading CPU platforms, Renesas is in the optimal position to support all your design needs for processor clocking from personal PCs to data centers and cloud servers. Find your ideal PCIe timing solutions.

Renesas recognizes how challenging it is to balance the system needs of tightening jitter limits, restrictive BOM costs and shrinking board space. Our clocks support diverse requirements including PCI Express, SATA, USB, SAS, DMI, QPI, Hypertransport, Ethernet, etc., and multiple socket CPU architectures.

About PCI Express Clocks

PCI Express is one of the most widely used high-performance peripheral interfaces in the world. From its origins in graphics, fields as diverse as high-performance computing, servers, storage, networking, and instrumentation have adopted PCI Express. This broad application space requires multiple PCI Express clock solutions optimized for the performance/BOM cost/board-space tradeoffs of each application. Renesas' strong partnerships with leading computing, networking and consumer vendors and our participation on the appropriate standards bodies enables us to stay at the forefront of the market with the ideal PCI Express clock and timing solutions (PCIe clocks) for every application.

Three Basic PCIe Reference Clock Architectures

 

CC Architecture

Common Clock

 

SRnS Architecture

Separate Reference No Spread

 

SRIS Architecture

Separate Reference Independent Spread

 
Clock Gen Clock Gen   Clock Gen Clock Gen   Clock Gen
Clock
south
  Clock
south
Clock
south
  Clock
south
Clock
south
  Clock
south
Buffer
(optional)
  Buffer
(optional)
Buffer
(optional)
  Buffer
(optional)
Buffer
(optional)
  Buffer
(optional)
south   south south   south south   south
CPU/SoC swap_horiz
PCIe
Data
PCIe Device CPU/SoC swap_horiz
PCIe
Data
PCIe Device CPU/SoC swap_horiz
PCIe
Data
PCIe Device
 

Documentation

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Overview
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