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Very Low Power 2-Output PCIe Clock Buffer With On-Chip Termination

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The PI6CB33202 is a two-output very-low-power PCIe Gen1/ Gen2/Gen3/Gen4/Gen5 clock buffer. It takes a reference input to
fan out two 100MHz low-power differential HCSL outputs with on-chip terminations. The on-chip termination can save eight
external resistors and make layout easier. Individual OE pin for each output provides easier power management.

It uses Diodes proprietary PLL design to achieve very-low jitter that meets PCIe Gen1/Gen2/Gen3/Gen4/Gen5 requirements.
Other than PCIe 100MHz support, this device also support Ethernet application with 50MHz, 125MHz, and 133.33MHz via
SMBus. It provides various options such as different slew rate and amplitude through SMBUS, so users can configure the device easily to get the optimized performance for their individual boards.


  • 3.3V Supply Voltage
  • HCSL Input: 100MHz; Also supports 50MHz, 125MHz, or 133.33MHz via SMBus
  • Two Differential Low-Power HCSL Outputs with On-Chip Termination
  • Default ZOUT = 85Ω
  • Spread Spectrum Tolerant
  • Individual Output Enable
  • Programmable Slew Rate and Output Amplitude for Each Output
  • Differential Outputs Blocked until PLL is Locked
  • Strapping Pins or SMBus for Configuration
  • Differential output-to-output skew <50ps
  • Very low jitter outputs
  • Differential cycle-to-cycle jitter <50ps
    - PCIe Gen1/Gen2/Gen3/Gen4/Gen5 CC compliant
    - PCIe Gen 2 and 3 SRiS and SRnS compliant
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable,
    and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative.
  • Packaging (Pb-free & Green):
    24-lead 4mm × 4mm TQFN

Product Specifications

Product Parameters

Compliance Standard
Function Buffer
Input Type(s) HCSL
Jitter 0.05
Number of Outputs 2
Output Frequency 100MHz, 125MHz, 133.33MHz, 156.25MHz
Output Type(s) HCSL
Skew 50
Supply Voltage 3.3
Temperature -40 to 85

Technical Documents

Application information

SPICE/IBIS Model Documents

Recommended Soldering Techniques



Orderable Part Number Status Package Environmental Compliance Packing Buy from Distributor /
Contact Sales
Request Samples
Qty. Carrier
PI6CB33202ZDIEX Active V-QFN4040-24 GREEN 3500 T&R


Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 3500 3/2/2021 Europe, Asia, North America Buy Now
Mouser Electronics Inc. 500 3/2/2021 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
PI6CB33202ZDIEX-13R Active V-QFN4040-24 TPGP 3500 T&R Contact Sales Request Sample

Environmental Compliance Legend:
LFF: Pb-Free Finish and RoHS 5/6
TLFP: Totally Pb-Free Product and RoHS 6/6
LFGP: Pb-free Finish and Green Product, RoHS 5/6 and Halogen Free
TPGP: Totally Pb-Free and Green Product, RoHS 6/6 and Halogen Free
GREEN: Halogen-free and RoHS compliant
RoHS: RoHS compliant but NOT halogen-free