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DS1862A Datasheet Xfp Laser Control And Digital Diagnostic Ic

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: Rev 0; 10/08 .. XFP Laser Control and Digital Diagnostic IC General.

General Description

The DS1862A is a closed-loop laser-driver control IC with built-in digital diagnostics designed for XFP MSA.

The laser control function incorporates automatic power control (APC) and allows extinction ratio control though a temperature-indexed lookup table (LUT).

The DS1862A monitors up to seven analog inputs, including temperature and monitor diode (MD) current, which are used to regulate the laser bias current and extinction ratio.

Key Features

  • es.
  • Implements XFP MSA Requirements for Digital Diagnostics, Serial ID, and User Memory I2C-Compatible Serial Interface Automatic Power Control (APC) Extinction Ratio Control with Lookup Table DS1862A.
  • Seven Monitored Channels for Digital Diagnostics (Five Basic Plus Two Auxiliary).
  • Internal Calibration of Monitored Channels (Temp, VCC2/3, Bias Current, Transmitted, and Received Power).
  • Programmable Quick-Trip Logic for Turning Off Laser for Eye Safety.

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