The 5V2305S is a low skew, single input to five output, clock buffer. The 5V2305S has best in class additive phase jitter of sub 50 fsec.

The 5V2305S also supports a synchronous glitch-free Output Enable function to eliminate any potential intermediate incorrect output clock cycles when enabling or disabling outputs. Available in 16-pin TSSOP and 10-pin DFN packages and can operate from a 1.8 V to 3.3 V supply.


  • Extremely low RMS Additive Phase Jitter: 50 fs
  • Low output skew: 50 ps
  • Packaged in 16-pin TSSOP and small 2mm x 2mm 10-pin DFN
  • Low power CMOS technology
  • Operating voltages of 1.8 V to 3.3 V
  • Extended temperature range (-40°C to +105°C)

Product Options

Orderable Part ID Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Preview TSSOP 16 K Yes Tube
Preview TSSOP 16 K Yes Reel
Preview DFN 10 K Yes Cut Tape
Preview DFN 10 K Yes Reel

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
5V2305S Datasheet Datasheet PDF 210 KB
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 322 KB
AN-845 Termination - LVCMOS Application Note PDF 146 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 170 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 495 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 442 KB
AN-834 Hot-Swap Recommendations Application Note PDF 153 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.15 MB
AN-815 Understanding Jitter Units Application Note PDF 565 KB
AN-805 Recommended Ferrite Beads Application Note PDF 121 KB
IDT Clock Buffers Offers Ultra Low Additive Phase Jitter Application Note PDF 1.28 MB
5V2305 IBIS Model Model - IBIS ZIP 31 KB
5V2305 Hspice Model Model - HSPICE ZIP 33 KB
Clock Distribution Overview 日本語 Overview PDF 217 KB
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB
IDT Fanout Buffers Product Overview Product Brief PDF 739 KB
High-Performance, Low-Phase Noise Clocks Buffers product brief Product Brief PDF 378 KB