Any Format Clock Buffers

The Silicon Labs universal family of low-jitter clock buffers and level translators (Si533xx) delivers multiple output clock formats from any input clock format.  The flexibility of our clock buffers reduces bill of materials complexity by allowing the same device to be used across multiple projects and platforms.   

Clock formats supported by the family include LVDS, LVPECL, CML, LVCMOS, SSTL, HCSL, and HSTL.  

Features

  • Pin-selectable signal format (LVPECL, low-power LVPECL, LVDS, CML, HCSL, LVCMOS)
  • Wide operating frequency DC - 1.25 GHz
  • 2-10 differential or 4-20 LVCMOS outputs
  • Accepts any differential or single-ended input
  • Low additive jitter: 45 fs rms (12 kHz - 20 MHz) typical
  • Glitchless clock switching
  • Synchronous and Individual output enable control options available
  • Integrated voltage level translation
  • Selectable drive strength to tailor jitter/EMI performance
  • Loss of signal (LOS) indicator
  • Optional output clock division:div-1, div-2, div-4
  • Low output-output skew: <50 ps
  • Excellent PSRR
  • Independent VDD and VDDO:1.8, 2.5 or 3.3 V

Product Matrix

Status
Devices
Part Number Data Sheet Dev KIt Clock Inputs Clock Outputs Frequency Min Frequency Max (MHz) Output Format(s) Additive Jitter (RMS) (ps) VDD (V) VDDO (V) Package Type Package Size (mm) Universal Buffers Differential Buffers LVCMOS Buffers PCI Express Buffers Zero Delay Buffers Dual
Si53301-4-EVB 2 6 1 725 CML; HCSL; LVCMOS; LVDS; LVPECL 0.05 1.8 V; 2.5 V; 3.3 V 1.8 V; 2.5 V; 3.3 V QFN32 5x5 Yes Yes No Yes No No
Si53301-4-EVB 2 10 1 725 CML; HCSL; LVCMOS; LVDS; LVPECL 0.05 1.8 V; 2.5 V; 3.3 V 1.8 V; 2.5 V; 3.3 V QFN44 7x7 Yes Yes No Yes No No
Si53301-4-EVB 2 10 1 725 CML; HCSL; LVCMOS; LVDS; LVPECL 0.05 1.8 V; 2.5 V; 3.3 V 1.8 V; 2.5 V; 3.3 V QFN44 7x7 Yes Yes No Yes No Yes
Si53301-4-EVB 2 6 1 725 CML; HCSL; LVCMOS; LVDS; LVPECL 0.05 1.8 V; 2.5 V; 3.3 V 1.8 V; 2.5 V; 3.3 V QFN32 5x5 Yes Yes No Yes No No
Si53301-4-EVB 2 10 1 725 CML; HCSL; LVCMOS; LVDS; LVPECL 0.05 1.8 V; 2.5 V; 3.3 V 1.8 V; 2.5 V; 3.3 V QFN44 7x7 Yes Yes No Yes No No
Si53301-4-EVB 1 4 1 725 CML; HCSL; LVCMOS; LVDS; LVPECL 0.05 1.8 V; 2.5 V; 3.3 V 1.8 V; 2.5 V; 3.3 V QFN16 3x3 Yes Yes No Yes No No
Si53301-4-EVB 2 2 1 725 CML; HCSL; LVCMOS; LVDS; LVPECL 0.05 1.5 V; 1.8 V; 2.5 V 1.8 V; 2.5 V; 3.3 V QFN17 3x3 Yes Yes No Yes No No
Si53301-4-EVB 2 6 1 725 CML; HCSL; LVCMOS; LVDS; LVPECL 0.05 1.8 V; 2.5 V; 3.3 V 1.8 V; 2.5 V; 3.3 V QFN32 5x5 Yes Yes No Yes No Yes
Si53301-4-EVB 2 6 1 1250 CML; HCSL; LVCMOS; LVDS; LVPECL 0.05 1.8 V; 2.5 V; 3.3 V 1.8 V; 2.5 V; 3.3 V QFN32 5x5 Yes Yes No Yes No No
Si53301-4-EVB 2 10 1 1250 CML; HCSL; LVCMOS; LVDS; LVPECL 0.05 1.8 V; 2.5 V; 3.3 V 1.8 V; 2.5 V; 3.3 V QFN44 7x7 Yes Yes No Yes No No
Si53301-4-EVB 2 10 1 1250 CML; HCSL; LVCMOS; LVDS; LVPECL 0.05 1.8 V; 2.5 V; 3.3 V 1.8 V; 2.5 V; 3.3 V QFN44 7x7 Yes Yes No Yes No Yes
Si53301-4-EVB 2 6 1 1250 CML; HCSL; LVCMOS; LVDS; LVPECL 0.05 1.8 V; 2.5 V; 3.3 V 1.8 V; 2.5 V; 3.3 V QFN32 5x5 Yes Yes No Yes No No
Si53301-4-EVB 2 10 1 1250 CML; HCSL; LVCMOS; LVDS; LVPECL 0.05 1.8 V; 2.5 V; 3.3 V 1.8 V; 2.5 V; 3.3 V QFN44 7x7 Yes Yes No Yes No No
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