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ZL40268
  • ZL40268

ZL40268

In Production

The ZL40268 is a 3x8 HCSL/LVDS/LVPECL ePPS fanout buffer with an ultra-low additive jitter of 24fs, capable of operating at frequencies up to 1.5 GHz. Using the 8-output ZL40268 and utilizing the individual output pins or I2C interface, you can create hot-swappable PCIe Clock Trees.Applications include PCI Express generations 1/2/3/4/5/6/7 clock distribution, Intel QPI and UPI distribution, servers, storage, data centers, switches, and routers. 

Microchip Technology ZL40268 Product Info

16 April 2026 1

Parameters

Buffer Type

Fanout

Fanout

1:8

Icc (mA)

0

Input

LVPECL/HCSL/LVDS/SSTL/CML/LVCMOS

InputMux

Yes

Output Frequency (Max) (GHz)

1.5

MaxProp Delay (ps)

1186

MaxWithin Device Skew (ps)

50

No. of outputs

8

OE

1

Output

LVPECL/HCSL/LVDS/SSTL/CML/LVCMOS

PCIe Gen

1-7

Supply Voltage

2.5/3.3

Features

  • 3 to 1 input Multiplexer: Two inputs accept any differential (LVPECL, HCSL, LVDS, SSTL, CML, LVCMOS) or a single ended signal and the third input accepts a crystal or a single ended signal
  • Eight differential HCSL/LVDS/LVPECL outputs
  • Ultra-low additive jitter: 24fs (integration band: 12kHz to 20MHz at 625MHz clock frequency)
  • Supports clock frequencies from 0 to 1.5GHz
  • Supports 2.5V or 3.3V power supplies on HCSL/LVDS/LVPECL outputs
  • Embedded Low Drop Out (LDO) Voltage regulator provides superior Power Supply Noise Rejection
  • Maximum output to output skew of 50ps
  • Device controlled via I2C or hardware control pins
  • Factory configurable default settings via OTP
  • Transparent for spread spectrum clock
      • Applications
    • PCIe Gen1/2/3/4/5/6/7 clock distribution
    • Wired communications: OTN, SONET/SDH, GE, 10 GE, FC and 10G FC
    • General purpose clock distribution
    • Low jitter clock trees
    • Logic translation
    • Clock and data signal restoration
    • Wireless communications
    • High performance microprocessor clock distribution
    • Test Equipment
    • ePPS clock buffer on Timing Module

    Description

    The ZL40268 is a 3x8 HCSL/LVDS/LVPECL ePPS fanout buffer with an ultra-low additive jitter of 24fs, capable of operating at frequencies up to 1.5 GHz. Using the 8-output ZL40268 and utilizing the individual output pins or I2C interface, you can create hot-swappable PCIe Clock Trees.

    Applications include PCI Express generations 1/2/3/4/5/6/7 clock distribution, Intel QPI and UPI distribution, servers, storage, data centers, switches, and routers. 

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