Diodes Incorporated
Back to PCI Express (PCIe) Clock Generators


PCIe 3.0 Clock Generator with 4 HCSL Outputs with on-chip termination

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.

Product Description

The PI6CFGL401B is an 4-output very low power clock genera- tor for PCIe Gen1-2-3 applications with integrated output ter- minations providing Zo=100Ω. The device has 4 output enables for clock management and supports 2 different spread spectrum levels in addition to spread off. The device also has one 1.8V LVCMOS REF output. 


  • 25MHz crystal or reference clock input
  • 100MHz low power HCSL or LVDS compatible outputs
  • PCIe 3.0, 2.0 and 1.0 compliant
  • Selectable spread spectrum of -0.25%, -0.5% and no spread
  • Programmable output amplitude and slew rate
  • Cycle-to-cycle jitter (typ.) ~ 30ps
  • Supply voltage of 3.3V+/-10%
  • Output supply voltage of 1.8V
  • Industrial ambient operating temperature
  • Available in lead-free package: 32-TQFN 


  • PCIe Gen1-2-3 clock generator 

Product Specifications

Product Parameters

Function Generator
Compliance(Only Automotive supports PPAP) Standard
Input Type(s) Crystal, CMOS
Jitter RMS (ps) <1
Number of Outputs 4
Output Frequency (MHz) 100
Output Type(s) HCSL, CMOS
Skew (PS) 50
Supply Voltage (V) 3.3
Ambient or Junction Temperature (°C) -40 to 85

Technical Documents


Recommended Soldering Techniques


Additional Technical Documents are available upon request: 
Application information, Evaluation board, and Other technical documents

Request Documents