ATR0844
Overview
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.
- 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 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)
