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VSC7939 - Laser Diode Driver

Datasheet Summary

Description

The VSC7939 is a single 3.3V or 5V supply laser diode driver specially designed for SONET/SDH applications up to 3.125Gb/s.

External resistors set a wide range of bias and modulation currents for driving the laser.

Data and clock inputs accept differential PECL signals.

Features

  • Power Supply: 3.3V or 5V ±5%.
  • AC-Coupled to Laser Diode SONET/SDH 3.125Gb/s Laser Diode Driver with Automatic Power Control.

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Datasheet preview – VSC7939

Datasheet Details

Part number VSC7939
Manufacturer Vitesse Semiconductor
File Size 272.63 KB
Description Laser Diode Driver
Datasheet download datasheet VSC7939 Datasheet
Additional preview pages of the VSC7939 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com VITESSE SEMICONDUCTOR CORPORATION Preliminary Data Sheet VSC7939 Features • Power Supply: 3.3V or 5V ±5% • AC-Coupled to Laser Diode SONET/SDH 3.125Gb/s Laser Diode Driver with Automatic Power Control Applications • SONET/SDH at 622Mb/s, 1.244Gb/s, 2.488Gb/s, 3.125Gb/s • Full-Speed Fibre Channel (1.062Gb/s) • Programmable Modulation Current: 5mA to 60mA • Programmable Bias Current: 1mA to 100mA • Enable /Disable Control • Typical Rise/Fall Times of 60ps • Automatic Optical Average Power Control • Supply Current of 33mA at 3.3V General Description The VSC7939 is a single 3.3V or 5V supply laser diode driver specially designed for SONET/SDH applications up to 3.125Gb/s. External resistors set a wide range of bias and modulation currents for driving the laser.
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