Product Detail

Four channel 25G / 28G CDR with Integrated EML driver
The M37047 is a Four channel 25G / 28G CDR with Integrated EML driver for use as a transmit device in optical modules. The M37047 CDRs retime at 25.78 Gbps, 27.95 Gbps, and 28.05 Gbps. Each channel includes adaptive input equalization (optional programmable), a high performance CDR, and an EML driver with programmable output swing and crossing point. The CDR is reference-free and can be bypassed to support legacy or non-standard data rates. The M37047 is assembled in a 4 mm x 4.5 mm chip scale package (CSP) and integrates diagnostic features such as PRBS (31/9) generation and PRBS 31 error checking. The device core is powered from a single 1.8V supply and the EML driver is powered with 1.8V and 3.3V supplies, delivering industry’s leading low power consumption. The device is controlled through a 2-wire serial interface.
  • Quad 25.78 Gbps/28.05 Gbps CDR
  • Extracted clock output fb/2, fb/8, fb/32 or fb/40 (Monitor clock)
  • Supports -40 °C to +85 °C case temperature
  • Low output jitter
  • High input jitter tolerance
  • Low power
  • Reference-free CDR
  • Adaptive input equalization with optional programmable
  • Programmable output swing
  • Programmable output crossing point
  • Integrated PRBS Generator and Checker
  • Programmable LOS threshold
  • 100-Gigabit Ethernet (100GbE)
  • 100G OTN (OTU-4)
  • Active Optical Cables
  • Fiber Channel 32GFC, 128GFC
  • InfiniBand EDR
  • Onboard optical engine
  • Optical Modules
  • Optical Modules CF-2, CFP-4, QSFP+
  • Max Data Rate: 28 Gbps
  • Power Consumption: 1.2 Watts
Contact Info
Part Number Package MACOM Richardson RFPD DigiKey Mouser Richardson Electronics
Four channel 25G / 28G CDR with Integrated EML driver

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