DATASHEET
ISL58781
Laser Diode Driver with Serial Control and Write Current DAC
The ISL58781 is a highly integrated laser diode driver
designed to support multi-standard writable optical
drives in CD, DVD, and Blu-Ray at various speeds. It is
a �hybrid’ part having an interface compatible with a
conventional LDD, but an internal architecture similar
to a write strategy LDD. This combination adds
versatility to the conventional interface.
The rise and fall times and overshoot of the blue output
are adjustable to compensate for high and low
resistance lasers. FN6909
Rev 3.00
December 3, 2015 Features Compatible with all Conventional Controllers
Having a Serial Port, with Some Programming Programmable Snubber on all Outputs Compatible with Future Controllers Having Gray
Coded WEN Lines for Glitchless High-Speed
Operation WEN Line Skew Detection 1000mA Maximum Total Output There are two banks of write currents with a bank
select line, BSEL. This eliminates the need to
synchronize the serial port to the media. 10-bit x 10-bit Multiplying DAC Output Provides
10-bit Full Scale Adjustment and 10-bit Resolution
at any Full Scale Output The oscillator can be controlled by external LVDS lines,
or internally activated through program assignment to …
