Product Detail

Quad 28GBaud PAM-4/NRZ CDR with Integrated Limting Amplifier

The MASC-38040 is a Quad 28GBaud PAM4/NRZ CDR with Integrated Limiting Amplifier for use in optical module applications. Each includes a high-sensitivity limiting amplifier, a high performance CDR, and an output driver with programmable output swing and 2-tap de-emphasis. The MASC-38040 reference-free CDR retime at 25.78 GBaud to 28.9 GBaud and can be bypassed to support legacy or non-standard data rates. MASC-38040 can be powered with a single 1.8V power supply and each channel can be controlled through the two-wire I2C compatible interface. The MASC-38040 is available in a 5.2 mm x 5.2 mm QFN compatible package.

Features
  • Quad 28GBaud PAM-4/NRZ CDR with Integrated Limiting Amp
  • Low Power Consumption
  • High-Sensitivity Limiting Amplifier with Programmable Slice Level Adjust and LOS Threshold
  • Reference-free CDR with optional Bypass Mode
  • Horizontal and Vertical Eye Shaping
  • Individual Channel Programmability/Power Down
  • Extracted clock output Fb/2, Fb/8, Fb/32 or Fb/40 (Monitor clock)
  • Dedicate Alarm Pins to flag LOS or LOL on any channel
  • Programmable Output Swing, Mute and De-Emphasis
  • Supports -5°C to +95°C Temperature Range
  • ye Monitor, PRBS Generator and Checker
Applications
  • Active Optical Cables
  • 200G/400G Optical Modules
  • On-board Optical Engines
  • Line Cards
Specifications
  • Max Data Rate: 28.9 Gbps
Datasheet: Request Datasheet
Part Number Package MACOM Richardson RFPD DigiKey Mouser Rell
MASC-38040B
Quad 28GBaud PAM-4/NRZ CDR with Integrated Limting Amplifier
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