This part is a kind of semiconductor called AD9660.

Function of this product has 200 MHz Laser Diode Driver with Light Power Control.

Manufacturers : Analog Devices

Image and pinout :

Some of the text within the PDF file :

a FEATURES 1.5 ns Rise/2.0 ns Fall Times Output Current: 180 mA @ 3 V, 200 mA @ 2.5 V Bias Current: 90 mA @ 3 V Modulation Current: 60 mA @ 3 V Offset Current: 30 mA @ 3 V Single +5 V Power Supply Switching Rate: 200 MHz Onboard Light Power Control Loops APPLICATIONS Laser Printers and Copiers Optical Disk Drives FO Datacomm 200 MHz Laser Diode Driver with Light Power Control AD9660 FUNCTIONAL BLOCK DIAGRAM WRITE PULSE WRITE CALIBRATE WRITE LEVEL T/H V:1 OUTPUT DRIVER OUTPUT LASER DIODE TRANSIMPEDANCE AMPLIFIER SENSE INPUT PHOTO DETECTOR DIODE BIAS LEVEL BIAS CAL BIAS T/H V:1 OUTPUT DRIVER AD9660 GENERAL DESCRIPTION The AD9660 is a highly integrated driver for laser diode applications such as optical disk drives, printers, and copiers. The AD9660 gets feedback from an external p [ ... ]

AD9660 PDF Datasheet Download