AT4039E 400G BERT

4-Channel 56 GBd PAM & NRZ | 400G BERT
  • DataRates:23–29&46–58GBaud(116 Gbps)
  • Ability to tune the bit rate in steps of 100 kbps and find the RX PLL locking margin.
  • Independent control of inner eye levels
  • Up to 0.8 Vppd output swing
  • Supports Gray coding and polarity inversion
  • Adaptive DFE and FFE with reflection canceller
  • Programmable front-end attenuator
  • SNR monitoring over time
  • PAM histogram monitor
  • PAM slicer threshold adjustable
  • Error-detection on following patterns: - PRBS 7/9/11/15/16/23/31 - PRBS13Q and PRBS31Q
  • Automatic pattern detect
  • LOS indicators

The AT4039E is a fully featured 400G BERT that can be configured as a 4-channel PAM4 56 GBaud or 4-channel NRZ 56 Gbps lanes. Also, half rates of 28GBd are supported in PAM and NRZ modes. The transmitters support all standard test patterns mandated by IEEE and OIF such asPRBS13Q, SSPRQ, PRBS31Q, etc…

The user may also program the TX to output a user-defined pattern up to 131 kb long.

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