PCI Express (PCIe) Clock Buffers

Silicon Labs offers a portfolio of low-power fanout and zero-delay buffers meeting PCI Express Gen1/2/3/4 specifications. The family is ideal for consumer, industrial, server, storage, and data center applications requiring a high number of PCI Express clocks.  

Our clock buffer devices feature low-power, push-pull output buffer technology, providing benefits of low-power consumption, reduced external terminating resistors, and small packaging.  



Features

  • Complete portfolio of PCI Express buffers/zero-delay buffers
  • Push-pull HCSL output buffer technology
  • Integrated termination resistors
  • Low-power consumption
  • All devices PCIe Gen 1/2/3/4 compliant with margin
  • Supports optional LVPECL, LVDS, or CML levels
  • -40 to 85 °C operation
  • Individual output enable control
  • Spread spectrum pass through
  • Small form factor QFN packaging
  • Excellent PSRR
  • Intel Qualified (Si53108, Si53112)

Product Matrix

Status
Devices
Part Number Data Sheet Dev KIt Clock Inputs Clock Outputs Frequency Min (MHz) Frequency Max (MHz) Output Format(s) Additive Jitter (RMS) VDD (V) VDDO (V) Package Type Package Size (mm) Universal Buffers Differential Buffers LVCMOS Buffers PCI Express Buffers Zero Delay Buffers Line Impedance Matching
Timing Kits 1 2 10 175 HCSL 0.2 2.5; 3.3 TDFN8 1.4x1.6 No No No Yes No 0
Timing Kits 1 2, 4 100 210 HCSL 0.1 3.3 3.3 QFN24 4x4 No No No Yes No 0
1 6 100 210 HCSL 0.1 3.3 3.3 QFN32 5x5 No No No Yes No 0
Timing Kits 1 9 100 210 HCSL 0.1 3.3 3.3 QFN48 6x6 No No No Yes No 0
Si53208-EVB 1 4 10 200 HCSL 0.06 1.5; 1.8 1.5; 1.8 QFN32 5x5 No No No Yes No 85, 100
Si53208-EVB 1 8 10 200 HCSL 0.06 1.5; 1.8 1.5; 1.8 QFN48 6x6 No No No Yes No 85, 100
Si53208-EVB 1 12 10 200 HCSL 0.06 1.5; 1.8 1.5; 1.8 QFN64 9x9 No No No Yes No 85, 100

Evaluate PCI Express Buffers

Jumpstart clock buffer development today with one of our Si5311x kits. Measure the jitter performance, power consumption, and signal integrity with the boards, which feature SMA connectors for robust low jitter signal integrity measurements.

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