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1:4 High Perfomance LVPECL Fan out Buffer

NOTE: Datasheet may not yet reflect updated package obsolescence/phase out status or Package Drawing. Please refer to the PRODUCT OPTIONS tab for the most up to date package options and drawings. Please refer to PCN/PDN tabs for most current package obsolescence/phase out status.
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The PI6C4911504-01 is a high performance fanout buffer device which supports up to 1.5GHz frequency.
This device is ideal for systems that need to distribute low jitter clock signals to multiple destinations.


  • Networking systems including switches and Routers
  • High frequency backplane based computing and telecom platforms


  • 4 LVPECL outputs
  • Up to 1.5GHz output frequency
  • Ultra low additive phase jitter: < 0.04 ps (typ)
  • Two selectable inputs
  • Low delay from input to output (Tpd typ. < 1.0ns)
  • 2.5V / 3.3V power supply
  • Industrial temperature support
  • TSSOP-20 package

Product Specifications

Product Parameters

Function Buffer
Number of Outputs 4
Output Type(s) LVPECL, CML
Maximum Output Frequency (MHz) 1500
Additive Jitter (ps) 0.04
Supply Voltage (V) 2.5, 3.3
Input Type(s) LVCMOS, Differential
Skew (ps) 40
Ambient or Junction Temperature (°C) -40 to 85
Orderable Part Number Status Package Environmental Compliance Packing Buy from Distributor /
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Qty. Carrier
PI6C4911504-01LIE Obsolete TSSOP-20 LFGP 74 TUBE
PI6C4911504-01LIEX Active TSSOP-20 GREEN 3000 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

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-2428 2019-11-12 2020-02-12 Assembly & Test Site Porting from OSE to Greatek