5 LVCMOS Output, Ultra-Low-Jitter, Fanout Clock Buffer

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The SiT92113 is a 5-output, low-jitter fanout clock buffer. It is ideal for low-jitter, high-frequency clock/data distribution. The low impedance LVCMOS outputs are designed to drive 50 Ω series or parallel terminated transmission lines.

The buffer can use a clock input from primary or secondary clock sources, either single ended or fully differential. The selected clock is distributed to 5 LVCMOS output drivers.

The SiT92113 operates from a 3.3 V/2.5 V core supply and 3.3 V/2.5 V output supply. The core supply and output supply are independent of each other and no supply sequencing is required.


4x4 mm, 24-pin QFN Clock Buffer package
"Specs" "Value"
Operating Temperature Range (°C) -40 to 85
Package Type (mm²) 4x4 mm, 24-pin QFN
Buffer Type Fanout
Number of Inputs 1
Number of Outputs 5 Single Ended
Input Type LVPECL, LVDS, LVCMOS, SSTL, HCSL
Input Frequency Range 0 Hz to 250 MHz
Output Type LVCMOS
Output Frequency Range 0 Hz to 250 MHz
Additive Phase Jitter (rms) 50 fs
Propagation Delay, Typical 1.4 ns
Output-Output Skew, Typical 30 ps
Availability Production
  • Level translation with core supply voltage of 3.3 V/2.5 V and 3.3 V/2.5 V / 1.8 V/ 1.5 V output supply for LVCMOS output drivers.
  • The inputs are selected by programming input select pins of SiT92113. The input clock receiver in SiT92113 can accept LVPECL, LVDS, LVCMOS, SSTL, HCSL and OSC waveforms.
SiT92113 Functional Overview
  • Ethernet
  • 5G Infrastructure
  • Wireless Equipment
  • Small Cells
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