Si5392-97 and Si5342-47 Jitter Attenuators, Jitter Cleaners

Our jitter attenuators use DSPLL® and MultiSynth technology to deliver best-in-class jitter cleaning. They are able to deliver any combination of output frequencies.  

The Si539x (A/B/C/D/J/K/L/M) any-frequency jitter attenuating clocks generate any output frequency up to 1028 MHz from any input frequency (8 kHz to 750 MHz), while delivering industry-leading jitter performance. Si5395/4/2 (P/E) devices offer the best-in-class jitter (69-fs RMS phase jitter) for ultra-high performance applications like 56G/112G SerDes. The Integrated Reference variants (J/K/L/M/E) offer better reliability and superior stability over temperature ramps and offer PCB space savings.

Output frequency
Up to 1028 MHz
Phase jitter (RMS)
90 fs

High-Performance Jitter Attenuator Common Specs

  • Integrated Reference (J/K/L/M/E)
  • Generates any combination of output frequencies from any input frequency
  • Ultra-low jitter: 69 fs
  • Meets G.8262, E.8262.1 EEC Standards
  • Enhanced hitless switching minimizes output phase transients
  • Synchronous, free-run and holdover modes
  • Status monitoring: LOL, LOS, OOF
  • Output frequency up to 1028 MHz
  • Re-programmable to any frequency without BOM changes
  • In-circuit programmable via SPI and I²C
  • Si5392-97 is drop-in compatible with older generation counterparts Si5342-47
Find the Right High-Performance Jitter Attenuator Select Columns
Select Columns
Part Number Customize Reference Type Number of Inputs Number of Outputs Phase Jitter (RMS) Input Frequency Min Input Frequency Max Output Frequency Max 56G SerDes VDD (V) VDDO (V) Package Type Package Size (mm) Synchronous Ethernet/1588 Intel x86 Clocks
Customize External 4 2 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 2 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 2 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 2 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 4 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 4 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 4 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 4 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 10 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Customize External 4 10 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Customize External 4 10 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Customize External 4 10 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Customize External 4 4 0.09 0.008 750 720 1.8; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 4 0.09 0.008 750 350 1.8; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 8 0.09 0.008 750 720 1.8; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Customize External 4 8 0.09 0.008 750 350 1.8; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Customize External 4 4 0.09 0.008 750 720 1.8; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 4 0.09 0.008 750 350 1.8; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 2 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 2 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 2 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 2 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize Internal 4 2 0.07 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 LGA44 7x7
Customize Internal 4 2 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 LGA44 7x7
Customize Internal 4 2 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 LGA44 7x7
Customize Internal 4 2 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 LGA44 7x7
Customize Internal 4 2 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 LGA44 7x7
Customize External 4 2 0.07 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 4 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 4 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 4 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 4 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize Internal 4 4 0.07 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 LGA44 7x7
Customize Internal 4 4 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 LGA44 7x7
Customize Internal 4 4 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 LGA44 7x7
Customize Internal 4 4 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 LGA44 7x7
Customize Internal 4 4 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 LGA44 7x7
Customize External 4 4 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 12 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Customize External 4 12 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Customize External 4 12 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Customize External 4 12 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Customize Internal 4 12 0.07 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 LGA64 9x9
Customize Internal 4 12 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 LGA64 9x9
Customize Internal 4 12 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 LGA64 9x9
Customize Internal 4 12 0.09 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 LGA64 9x9
Customize Internal 4 12 0.09 0.008 750 350 1.8; 2.5; 3.3 1.8; 2.5; 3.3 LGA64 9x9
Customize External 4 12 0.07 0.008 750 1028 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Customize External 4 4 0.09 0.008 750 720 1.8; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize External 4 4 0.09 0.008 750 350 1.8; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Customize Internal 4 4 0.09 0.008 750 720 1.8; 3.3 1.8; 2.5; 3.3 LGA44 7x7
Customize Internal 4 4 0.09 0.008 750 350 1.8; 3.3 1.8; 2.5; 3.3 LGA44 7x7
Customize External 4 8 0.09 0.008 750 720 1.8; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Customize External 4 8 0.09 0.008 750 350 1.8; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Customize External 4 4 0.09 0.008 750 720 1.8; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Customize External 4 4 0.09 0.008 750 350 1.8; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Customize Internal 4 8 0.09 0.008 750 720 1.8; 3.3 1.8; 2.5; 3.3 LGA64 9x9
Customize Internal 4 8 0.09 0.008 750 350 1.8; 3.3 1.8; 2.5; 3.3 LGA64 9x9
Customize Internal 4 8 0.09 0.008 750 720 1.8; 3.3 1.8; 2.5; 3.3 LGA64 9x9
Customize Internal 4 8 0.09 0.008 750 350 1.8; 3.3 1.8; 2.5; 3.3 LGA64 9x9

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