Automotive PCI Express (PCIe) Clock Generators

Silicon Labs offers the highest performance, lowest power PCI Express Gen1/2/3/4/5 clock generators on the market. All devices feature low power push-pull output buffer technology, providing benefits of  low power consumption, reduced external terminating resistors, and smaller packaging. To optimize performance, the devices support programmable drive strength, rise/fall times, and output impedance. Down spread spectrum clock generation is also supported. The devices support the standard PCIe HCSL signaling format and can be externally terminated to support LVPECL, LVDS, or CML levels. 

Features

  • Automotive Grade2, AEC-Q100 options
  • 8/4-output options
  • Wide range of power supply: 1.8V, 2.5V, 3.3V
  • Fully integrated termination resistors on PCIe outputs
  • Low power consumption
  • Programmable spread spectrum
  • Individual hardware pin for output enable and spread spectrum control
  • Supports optional LVPECL, LVDS, or CML levels
  • -40 to +105 °C operation

Get Started with PCI Express

Learn about PCIe standard timing requirements and how Silicon Labs' timing solution can provide the optimal timing solution for your design. Get your PCIe Gen1/2/3/4/5 compliance report with the easy-to-use Silicon Labs' PCIe Clock Jitter tool.

Automotive PCIe Clock Product Matrix

Devices
Part Number Data Sheet Dev KIt Description Reference Inputs Clock Outputs Output Frequency Output Format(s) Phase Jitter (RMS) VDD (V) VDDO (V) Package Type Package Size (mm) Clock Generators PCI Express Clocks Spread Spectrum Line Impedance Match Automotive
Si52258-A-EVB Automotive grade (105C) 4-output PCIe Gen1/2/3/4/5 clock generator (pin selectable 85/100ohm HCSL outputs) 1 4 100 100 HCSL 0.04 1.8; 2.5; 3.3 1.8; 2.5; 3.3 32QFN 5x5 Yes Yes Yes 100 Yes
Si52258-A-EVB Automotive grade (105C) 8-output PCIe Gen1/2/3/4/5 clock generator (pin selectable 85/100ohm HCSL outputs) 1 8 100 100 HCSL 0.04 1.8; 2.5; 3.3 1.8; 2.5; 3.3 40QFN 6x6 Yes Yes Yes 100 Yes
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