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ATR0840 - 4-channel Laser Driver

Description

The ATR0840 is a laser diode driver designed to operate two differently grounded laser diodes for DVD-RW/+RW (650 nm) and CD-RW (780 nm).

The device includes four channels for four different optical power levels.

Features

  • Current-controlled Output Current Source with 4 Input Channels LVDS/CMOS Compatible Inputs Channel 2, 3, and 4 Two Selectable Outputs for Grounded Laser Diodes Output Current per Channel up to 350 mA Total Output Current up to 500 mA On-chip RF Oscillator Control of 2 Different Swings and Frequencies by Use of 4 External Resistors Oscillator Frequency Range from 200 MHz to 500 MHz Maximu.

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Full PDF Text Transcription

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Features • • • • • • • • • • • Current-controlled Output Current Source with 4 Input Channels LVDS/CMOS Compatible Inputs Channel 2, 3, and 4 Two Selectable Outputs for Grounded Laser Diodes Output Current per Channel up to 350 mA Total Output Current up to 500 mA On-chip RF Oscillator Control of 2 Different Swings and Frequencies by Use of 4 External Resistors Oscillator Frequency Range from 200 MHz to 500 MHz Maximum Oscillator Current Amplitude 100 mApp Single 5 V Power Supply Small Pb-free QFN24 Package (4 mm × 4 mm) www.DataSheet4U.
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