100G QSFP28 DR


The ColorChip CTQ1XDR1CS1-01 is designed for 500m optical communication applications. The module integrates one channel optical signal with center wavelength of 1310nm operating at 50Gbaud data rate. A DSP based gearbox is used to convert 4x25Gbps NRZ signals to 1x50Gbaud PAM4 signal. The DSP also integrate a 4-channel retimer and FEC block. The electrical interface is compliant with IEEE 802.3cd and QSFP28 MSA  and optical interface is compliant to IEEE 802.3cd and 100G Lambda MSA with Duplex LC connector.

Key Features

  • Compliant with the QSFP28 MSA Technical Specifications
  • Optical data rate 53.125 GBd
  • Electrical  side support 4x25Gbps NRZ or  2x 53Gbps PAM4
  • Maximum link length of 500m on Single Mode Fiber (SMF)
  • Optical specifications are compliant with IEEE802.3cd 100GBASE-DR
  • Low speed electrical signal is compliant with SFF-8679
  • High speed electrical signal is compliant with 802.3bm CAUI-4
  • Digital diagnostic functions are available via the I2C interface, as specified by SFF-8636
  • Cooled EML laser with central wavelengths of 1310nm
  • Supports operation for a case temperature of 0°C to +70 °C
  • Duplex LC receptacles
  • Power Dissipation < 4W
  • Single 3.3V Power Supply
  • ROHS Compliant


  • 100GBASE-DR Ethernet links
  • Datacenter interconnects

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