kJ5000 – Jitter Noise Generators

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kJ5000 – Jitter Noise Generators

Designed specifically for the test and development of high speed serial data systems, producing Additive White Gaussian Noise with a minimum crest factor of 18dB to simulate real world jitter caused by thermal noise.

Designed specifically for the test and development of high speed serial data systems, the kJ5000 Series of Jitter Noise Generators produce Additive White Gaussian Noise with a minimum crest factor of 18dB in order to simulate real world jitter caused by thermal noise.

Precise levels of noise at the frequency bands of interest can be injected into a system in order to evaluate its performance and locate problem components.

  • Receiver Jitter Tolerance Testing
  • Phase Noise Measurements
  • PAM-4 Stressed Eye Testing
  • PLL Tuning
  • SNR Margin Testing
  • CDR Stress Testing

  • Output White Gaussian Noise
  • Minimum 18dB Crest Factor
  • Power 115/240VAC, 50/60Hz
  • Ethernet
  • Touch Screen Display
  • 3U High Enclosure
  • Operating Temperature: -10°C to +65°C

    • Due to ever increasing data rates and more complex modulation schemes in today's digital communication systems, there is a growing need for design engineers to ensure that signal edges synchronise as accurately as possible with the system's reference clock. The failure to do so results in a phenomenon known as random jitter (Rj), creating timing errors where signal edges arrive too early or too late in the time domain.

    In the frequency domain this effect is termed phase noise, whereby fluctuations in the phase of the carrier frequency spread the signal's power into nearby frequencies.

    IEEE Std 2414-2020 is the general standard which provides precise rules, definitions and parameters for the measurement of jitter and phase noise across all high speed telecommunications systems.

    Below are examples of serial data technologies, including their appropriate standards, and the kJ5000 model used for testing:

    Model Technology Standard / Specification
    kJ5006 10GBASE-KR Ethernet IEEE Standard 802.3ap
    kJ5013 25GBASE-SR Ethernet IEEE Standard 802.3by
    kJ5030 NDR Infiniband 400GB/s Infiniband Architecture Specification V1 Release 1.5
    kJ5060 PCI Express 7.0 PCI Express Base Specification Revision 7.0

  • kJ-C -> Signal Combiner
  • kJ-SFB -> Switched Filter Bank
  • kJ-SE -> Single Ended



    • Specifications

    Model Connector Frequency Power
    (dBm)    		 Flatness
    (dB)    		 Spectral Power
    (dBm/Hz)
    kJ5006 SMA Female 10MHz to 6GHz -3 ± 2.5 -100
    kJ5013 SMA Female 1GHz to 13GHz -3 ± 3 -107
    kJ5030 2.92mm 1GHz to 30GHz -3 ± 4 -100
    kJ5060 1.85mm 1GHz to 60GHz -8 ± 5 -110