Diodes Incorporated
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PCIe & Ethernet Clock Generator

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Product Description

The PI6LC4830 is an LC VCO based low phase noise design intended for the most demanding PCIe® 2.0 applications. Use of the ultra-low noise LC VCO allows for much greater noise margins than traditional solutions. This is ideal for noisy environments. 


  • 3.3V supply voltage
  • 3 HCSL and 1 LVCMOS 100MHz outputs with OE/ function Î 1 LVCMOS 100/50MHz selectable
  • 25MHz crystal or differential input
  • Low 1ps RMS max integrated phase noise design
  • PLL Bypass mode for test
  • 32 lead 5x5mm TQFN package 

Product Specifications

Product Parameters

Compliance (Only Automotive(Q) supports PPAP) Standard
Supply Voltage (V) 3.3
Jitter RMS (ps) 0.4
Skew (PS) 0
Output Frequency (MHz) 3x 100 MHz, 1x 100 MHz, 1x 50/100 MHz, 1x 25 MHz
Input Type(s) Crystal, Differential
Output Type(s) HCSL, LVCMOS, Differential
Number of Outputs 6
Ambient or Junction Temperature (°C) -40 to 85
Supported Frequencies (MHz) 100, 50, 25

Technical Documents

Recommended Soldering Techniques


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

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2520 2021-05-27 2021-08-27 Qualified Additional Bump Site and Assembly/Test (A/T) Sites
PCN-2328 2018-04-12 2018-10-12 Device End of Life for tray packaging only


Related Collection FAQs

PI6LC4830 FAQs

What is HiFlex® clock IC?

PI6LCxxxx is Pericom's newly developed high frequency, very low jitter clock generator family, which use high Q silicon VCO to dramatically reduce traditional PLL clock jitter. They are especially good for Telecom, Datacom, and Ethernet for phase jitter <=1 ps designs.  HiFlex Clock FInder tool

What is LVPECL clock and its termination?

LVPECL is Low Voltage Positive (supply) Emitter Couple Logic. Its voltage level is around 2V+/-400mV and the most use termination is 150 ohm pull-down at output pin and AC or DC coupling to an equivalent 100 ohm across pair at RX ASIC side. Check ASIC datasheet  to prevent double termination.