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Clock Jitter Attenuators

Our clock jitter attenuators generate infinite combinations of low jitter output frequencies from any input frequency. Based on our innovative third generation wireless DSPLL® architecture, these devices simplify clock tree design by replacing multiple clocks and oscillators and minimizing bill of materials count and complexity.

Frequency range
2 kHz to 1.4 GHz
Ultra-low jitter
300 fs RMS

Clock Jitter Attenuator Common Specs

  • Generates any frequency on any output (2 kHz to 1.4 GHz)
  • Ultra-low jitter: 300 fs RMS
  • Integrated loop filter with selectable loop bandwidth
  • Hitless switching with phase buildout (auto/manual)
  • Synchronous and freerun modes
  • Best-in-class PSRR
  • Dynamically reconfigurable output frequency (per output)
  • Fast-lock < 100 ms
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Part Number Number of Inputs Number of Outputs Input Frequency Min Input Frequency Max Output Frequency Min Output Frequency Max Output Format(s) Description Phase Jitter (RMS) VDD (V) VDDO (V) Package Type Package Size (mm) Synchronous Ethernet/1588 Intel x86 Clocks
Si5315A
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2 2 0.008 644 0.008 644 LVPECL; LVDS; CML; LVCMOS SyncE/T1/E1 jitter attenuating clock 0.23 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5315B
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2 2 0.008 644 0.008 125 LVPECL; LVDS; CML; LVCMOS SyncE/T1/E1 jitter attenuating clock 0.23 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5316
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2 1 19 710 19 710 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5317A
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1 2 1 711 1 711 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5317B
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1 2 1 350 1 350 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5317C
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1 2 1 200 1 200 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5317D
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1 2 1 100 1 100 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5319A
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1 1 2 710 0.002 1417 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5319B
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1 1 2 710 0.002 808 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5319C
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1 1 2 710 0.002 346 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5322
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2 2 19 707 19 1050 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.6 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5323
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2 2 8 707 0.008 1050 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5324A
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2 2 2 710 0.002 1417 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5324B
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2 2 2 710 0.002 808 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5324C
Buy Sample Dev Kit
2 2 2 710 0.002 346 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5324D
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2 2 2 710 0.002 150 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5325A
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2 2 10 710 0.002 1417 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.6 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5325B
Buy Sample Dev Kit
2 2 10 710 0.002 808 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.6 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5325C
Buy Sample Dev Kit
2 2 10 710 0.002 346 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.6 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5326A
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2 2 2 710 0.002 1417 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5326B
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2 2 2 710 0.002 808 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5326C
Buy Sample Dev Kit
2 2 2 710 0.002 346 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5327B
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2 2 2 710 0.002 808 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.5 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5327C
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2 2 2 710 0.002 346 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.5 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5327D
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2 2 2 710 0.002 243 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.5 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5328B
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2 2 0.008 710 0.008 808 LVPECL; LVDS; CML; LVCMOS SyncE jitter attenuating clock 0.3 2.5; 3.3 2.5; 3.3 QFN36 6x6
Si5328C
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2 2 0.008 710 0.008 346 LVPECL; LVDS; CML; LVCMOS SyncE jitter attenuating clock 0.3 2.5; 3.3 2.5; 3.3 QFN36 6x6
Si5365
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4 5 19 707 19 1050 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.6 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN36 6x6
Si5366
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4 5 8 707 0.008 1050 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 TQFP100 14x14
Si5368A
Buy Sample Dev Kit
4 5 2 710 0.002 1417 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 TQFP100 14x14
Si5368B
Buy Sample Dev Kit
4 5 2 710 0.002 808 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 TQFP100 14x14
Si5368C
Buy Sample Dev Kit
4 5 2 710 0.002 346 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 TQFP100 14x14
Si5369
Buy Sample Dev Kit
4 5 2 710 0.002 1417 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.3 1.8; 2.5; 3.3 1.8; 2.5; 3.3 TQFP100 14x14
Si5374
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8 8 2 710 0.002 808 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.4 1.8; 2.5 1.8; 2.5 BGA80 10x10
Si5375
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4 4 2 710 0.002 808 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.4 1.8; 2.5 1.8; 2.5 BGA80 10x10
Si5376
Buy Sample Dev Kit
8 8 2 710 0.002 808 LVPECL; LVDS; CML; LVCMOS Any-frequency jitter attenuating clock 0.4 1.8; 2.5 1.8; 2.5 BGA80 10x10
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      Si5328 SyncE Jitter Attenuating Clock Multiplier Development Kit

      Silicon Labs' Si5328 is the industry’s lowest jitter, most frequency flexible Synchronous Ethernet (SyncE) clock, making it ideal for Ethernet PHYs from GbE to 100 GbE. The Si5328 meets all of the jitter, wander, and holdover requirements specified by ITU-T G.8262/Y.1362.

      Si5328 SyncE Jitter Attenuating Clock Multiplier Development Kit

      Silicon Labs' Si5328 is the industry’s lowest jitter, most frequency flexible Synchronous Ethernet (SyncE) clock, making it ideal for Ethernet PHYs from GbE to 100 GbE. The Si5328 meets all of the jitter, wander, and holdover requirements specified by ITU-T G.8262/Y.1362.
      $250
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