PAM-4 BERT for QSFP DD 400G test

Key Features

  • 24 to 30 GBaud PAM-4 and NRZ mode
  • 8 channels for 400G Ethernet QSFP-DD
  • 3-Eye BER measurement in real time
  • Transmitter with De-Emphasis
  • Receiver with CTLE & DFE Equalization
  • PRBS13Q & PRBS31Q
  • SSPRQ stress pattern random quarternary
  • PRBS 2n-1 n = 7, 9, 13, 15, 23, 31
  • PAM4-linearity JP03A, JP03B
  • User programmable


  • QSFP-DD 400G testing
  • QSFP56 200G testing
  • Photonic integrated chip (PIC)

The MI-PE5620-8 is a PAM-4  BERT for QSFP-DD transceiver test. The excellent PAM-4 output signals and the full range of test pattern are ideal for transceiver compliance tests like the transmitter TDECQ test. The BER is measured in real time in all 3 PAM-eyes simultanously. The two boxes operate in the same clock domain.

A four channel version MI-PE5620-4 is also available with the same technical data.

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