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PCIe 2.0 Networking Clock Generator

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Product Description

The PI6C49003A is a clock generator device intended for PCIe® Gen2 networking applications. The device includes five 100MHz differential Host Clock Signal Level (HCSL) outputs for PCIe Gen 2, two single-ended 50MHz outputs, one single-ended 32.256MHz output, and one selectable single-ended 33/66/133MHz output.

Using a serially programmable SMBUS interface, the PI6C49003A incorporates spread spectrum modulation on the twelve 100MHz HCSL PCIe Gen 2 outputs, and independent frequency margining on the 50MHz output, 33.3333MHz and 66.6666MHz clock outputs. 


  • 3.3V+/-10% Supply Voltage

  • Uses 25MHz xtal

  • Five PCIe® Gen. 2 100MHz HCSL outputs with optional -0.5% spread spectrum support

  • Two LVCMOS 50MHz outputs that support +/-10% frequency margining

  • One frequency selectable 33/66/133MHz LVCMOS output

  • One 32.256MHz LVCMOS output

  • Industrial temperature -40°C to 85°C

  • Package: 48-pin TSSOP package 

Product Specifications

Product Parameters

Supply Voltage 3.3
Jitter (PS) <3
Skew (PS) 200
Output Frequency (MHz) 100
Input Type(s) Crystal
Output Type(s) HCSL, CMOS
Number of Outputs 9
Function Generator
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

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Orderable Part Number Buy from Distributor / Contact Sales Request Samples


Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Arrow Electronics 117 9/19/2021 United States Buy Now
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