ATR1842 Datasheet - ATMEL

ATR1842 Front Monitor Diode

The ATR1842 is a front monitor diode (FMD) which controls the laser power of the optical pickup for Blu-ray/HD-DVD, DVD and CD drives in one IC. With the serial programming interface (SPI) it is possible to fit the laser power for Blu-ray/HD-DVD, DVD and CD. 2 bits are used to set the mode/gain leve.

ATR1842 Features

* 405 nm, 650 nm and 780 nm Wavelengths Supported Blu-ray/HD-DVD x5, CD-R/RW x52, DVD-R/RW x16 Adjustment of Mode and Gain by Setting Internal Register via Serial Interface Paraphase Outputs Internal Reference Vo

ATR1842_ATMEL.pdf