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Ultra-Low Jitter Clock Generators

Our any-frequency, any-output Si5391, Si5341 and Si5340 clock generators combine a wide-band PLL with proprietary MultiSynth™ fractional synthesizer technology to offer a versatile and ultra-low jitter clock generator platform. With highly flexible architecture, the generators are capable of synthesizing a wide range of integer and non-integer related frequencies up to 1028 MHz on up to 12 differential clock outputs, while delivering sub-100-fs RMS phase jitter performance with 0 ppm error. Each clock output can be assigned its own format and output voltage, enabling the consolidation of multiple clock ICs and oscillators into a single device making it a true “clock tree on a chip.”

Phase jitter (RMS)
As low as 69 fs
Consolidate into a single IC
Up to 12 clock outputs

Ultra-Low Jitter Clock Generator Common Specs

  • Up to 12 independent clock outputs
  • MultiSynth technology delivers any frequency on any output
  • SPI or I2C programmable
  • Any format, any output: LVPECL, LVDS, HCSL, LVCMOS, HSTL, SSTL and CML
  • Clockbuilder Pro simplifies configuration
  • Independent Output clock supply pins eliminate external level translator
  • Ultra low phase jitter: < 70 fs
  • Si5391: 4 input, 12 output in 9x9 mm QFN64
  • Si5341: 4 input, 10 output in 9x9 mm QFN64 (3.3, 2.5, 1.8 V)
  • Si5340: 4-input, 4 output in 7x7 mm QFN44
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Find the Right Ultra-Low Jitter Clock Select Columns
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Part Number Customize Number of Inputs Number of Outputs Output Frequency Ouput Format(s) Phase Jitter (RMS) 56G SerDes Input Frequency Description Control VDD (V) VDDO (V) Package Type Package Size (mm) Clock Generators Jitter Attenuating Clocks Synchronous Ethernet/1588 PCIe Compliant 4G/LTE Wireless Clocks Intel x86 Clocks
Si5340A
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Customize 4 4 0.0001 1028 CML; HCSL; LVCMOS; LVDS; LVPECL 0.09 10 750 Ultra low-jitter, 4-output, any-frequency (< 1028 MHz), any output clock generator I2C/SPI 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Si5340B
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Customize 4 4 0.0001 350 CML; HCSL; LVCMOS; LVDS; LVPECL 0.09 10 750 Ultra low-jitter, 4-output, any-frequency (< 350 MHz), any output clock generator I2C/SPI 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Si5340C
Buy Sample Dev Kit
Customize 4 4 0.0001 1028 CML; HCSL; LVCMOS; LVDS; LVPECL 0.09 10 750 Ultra low-jitter, 4-output, any-frequency (< 350 MHz), any output clock generator I2C/SPI 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Si5340D
Buy Sample Dev Kit
Customize 4 4 0.0001 350 CML; HCSL; LVCMOS; LVDS; LVPECL 0.09 10 750 Ultra low-jitter, 4-output, any-frequency (< 350MHz), any output clock generator I2C/SPI 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN44 7x7
Si5341A
Buy Sample Dev Kit
Customize 4 10 0.0001 1028 CML; HCSL; LVCMOS; LVDS; LVPECL 0.09 10 750 Ultra low-jitter, 10-output, any-frequency (< 1028 MHz), any output clock generator I2C/SPI 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Si5341B
Buy Sample Dev Kit
Customize 4 10 0.0001 350 CML; HCSL; LVCMOS; LVDS; LVPECL 0.09 10 750 Ultra low-jitter, 10-output, any-frequency (< 350 MHz), any output clock generator I2C/SPI 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Si5341C
Buy Sample Dev Kit
Customize 4 10 0.0001 1028 CML; HCSL; LVCMOS; LVDS; LVPECL 0.09 10 750 Ultra low-jitter, 10-output, any-frequency (< 1028 MHz), any output clock generator I2C/SPI 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Si5341D
Buy Sample Dev Kit
Customize 4 10 0.0001 350 CML; HCSL; LVCMOS; LVDS; LVPECL 0.09 10 750 Ultra low-jitter, 10-output, any-frequency (< 350 MHz), any output clock generator I2C/SPI 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Si5391A
Buy Sample Dev Kit
Customize 4 12 0.0002 1028 CML; HCSL; LVCMOS; LVDS; LVPECL 0.075 10 750 Ultra low-jitter, 12-output, any-frequency (< 1028 MHz), any output clock generator I2C/SPI 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Si5391B
Buy Sample Dev Kit
Customize 4 12 0.0003 350 CML; HCSL; LVCMOS; LVDS; LVPECL 0.075 10 750 Ultra low-jitter, 12-output, any-frequency (< 350 MHz), any output clock generator I2C/SPI 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Si5391C
Buy Sample Dev Kit
Customize 4 12 0.0004 1028 CML; HCSL; LVCMOS; LVDS; LVPECL 0.075 10 750 Ultra low-jitter, 12-output, any-frequency (< 1028 MHz), any output clock generator I2C/SPI 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Si5391D
Buy Sample Dev Kit
Customize 4 12 0.0005 350 CML; HCSL; LVCMOS; LVDS; LVPECL 0.075 10 750 Ultra low-jitter, 12-output, any-frequency (< 350 MHz), any output clock generator I2C/SPI 1.8; 2.5; 3.3 1.8; 2.5; 3.3 QFN64 9x9
Si5391P
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Customize -15 12 25 312.5 CML; HCSL; LVCMOS; LVDS; LVPECL 0.069 48 48 Ultra low-jitter, 12-output, precision calibration (69 fs RMS) clock generator I2C/SPI 1.8; 2.5; 3.3 1.8/2.5/3.3 QFN64 9x9
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      Si5391P Clock Generator Evaluation Kit

      The Si5391P-A-EVB makes it easy to move from ClockBuilder Pro device configuration to hands-on performance evaluation.

      Si5391P Clock Generator Evaluation Kit

      The Si5391P-A-EVB makes it easy to move from ClockBuilder Pro device configuration to hands-on performance evaluation.
      MSRP $299.00
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