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ATR0844 Datasheet 4-channel Laser Driver

Manufacturer: Atmel (now Microchip Technology)

General Description

The ATR0844 is a laser diode driver designed to operate two different 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.

The write channels (channel 2 to 4) can be controlled either by fast LVDS (Low Voltage Differential Signaling) or by singleended standard CMOS logic.

Key Features

  • Current-controlled Output Current Source with 4 Input Channels LVDS Compatible Inputs Channel 2, 3, and 4 with On-chip 100 Ω Termination Separate Read-Channel Enable 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 Re.

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ATR0844 Distributor