PCI Express (PCIe) Clock Buffers

Silicon Labs offers a portfolio of PCI Express Gen1/2/3/4/5 compliant low-power fanout buffers in both industrial and automotive grade2 temperature grades. The family is ideal for consumer, industrial, server, storage, automotive, 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 are PCIe Gen 1/2/3/4/5 or PCI Gen 1/2/3 compliant with design margins
  • Supports optional LVPECL, LVDS, or CML levels
  • -40 to 85 °C operation
  • Automotive Grade2, -40 to +105 °C
  • AECQ-100 qualified options
  • 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 PCIe Performance Automotive
Timing Kits 1 2 10 175 HCSL 0.2 2.5; 3.3 TDFN8 1.4x1.6 No No No Yes No 0 1; 2; 3 No
Si53154-EVB 1 2, 4 100 210 HCSL 0.1 3.3 3.3 QFN24 4x4 No No No Yes No 0 1; 2; 3; 4 No
1 6 100 210 HCSL 0.1 3.3 3.3 QFN32 5x5 No No No Yes No 0 1; 2; 3; 4 No
Si53159-EVB 1 9 100 210 HCSL 0.1 3.3 3.3 QFN48 6x6 No No No Yes No 0 1; 2; 3; 4 No
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 1; 2; 3; 4; 5 No
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 1; 2; 3; 4; 5 No
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 1; 2; 3; 4; 5 No

Automotive Clock Buffers

Product Families
Family Clock Outputs Output Format(s) Additive Jitter Automotive
New
Automotive Clock Buffers
2, 4, 8 CML; HCSL; LVCMOS; LVDS; LVPECL 0.1 Yes
New
Automotive PCIe Clock Buffers
4, 8 HCSL 0.05 Yes

Evaluate PCI Express Buffers

Jumpstart clock buffer development today with one of our Si53208 or Si5315x evaluation 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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