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EL6935 Datasheet Laser Diode Driver w/Waveform Generator

Manufacturer: Intersil (now Renesas)

Overview

® EL6935 Data Sheet August 18, 2004 FN7409.1 Laser Diode Driver w/Waveform Generator The EL6935 is a highly integrated laser diode driver designed to support multi-standard writable optical drives.

It accomplishes this by incorporating a waveform generator wherein the diode currents and timing details can be programmed before operation.

The generator inspects the NRZ serial data waveform and generates programmed waveforms in recognition of 3, 4, 5, or 6 or more clock periods of space changing to 3, 4, 5, or 6 or more clock periods of mark, and vice versa.

Key Features

  • Completely programmable laser diode driver.
  • 500mA maximum total output.
  • 10-bit x 10-bit multiplying DAC output provides 10-bit full scale adjustment and 10-bit resolution at any full scale output.
  • 55psec timer resolution.
  • Two laser outputs allows read/ write DVD and CD combinations.
  • Programmable waveform values support CD-R, CD-RW, DVD-RAM, DVD-R, DVD-RW, DVD+R, DVD+RW, and Blue.
  • Two analog inputs support slope and read APC.