Industry-leading PCI Express Clock Solutions

Renesas has a history of firsts in PCI Express clocking and timing:

  • PCIe Gen1, Gen2, Gen3, Gen4, Gen5, Gen6 clocking solutions
  • Very-low power PCI Express clock generator (1.8V/1.5V)
  • Ultra-low power HCSL (LP-HCSL) outputs to replace standard-HCSL outputs for power savings up to 85%
  • Incorporation of multiple PLLs in a single device to save power and board space

Renesas' expertise in leading CPU platforms supports all your design needs for processor clocking from personal PCs to cloud servers. Find your ideal PCIe timing solutions.

Renesas recognizes that meeting strict requirements from tight jitter limits, BOM costs and board space can be challenging. We help you to meet requirements including PCI Express, SATA, USB, SAS, DMI, QPI, Hypertransport, Ethernet, etc., and the 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, instrumentation and consumer have adopted PCI Express. This broad application space requires multiple PCI Express clock solutions optimized for the different performance, BOM cost and board-space tradeoffs that each application demands. Renesas' strong position with leading computing, networking and consumer customers and our participation on the appropriate standards bodies allows us to offer the ideal PCI Express clock and timing solutions (in short, PCIe clocks) for any 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
 

Categories

PCI Express® Clock Buffers and Multiplexers

Clock and fanout buffers with and without PLL for PCI Express applications

PCI Express® Clock Generators

PCIe Gen1, Gen2, Gen3, Gen4, Gen5-ready clock generator solutions