EL6291C

The EL6291C is a highly integrated laser diode driver designed to sup-port multi-standard writable optical drives. It accomplishes this by incorporating a waveform generator wherein the diode currents and timing details can be programmed before operation. The data input cir-cuitry inspects the NRZ serial data waveform and generates programmed waveforms in recognition of 3, 4, 5, or 6 or more clock periods of space changing to 3, 4, 5, or 6 or more clock periods of mark, and vice versa.

This programmable architecture EL6291C allows reprogramming of the timers to support different media, DVD or CD standards, and different speeds. The programming is accomplished through a serial interface port. Two outputs are provided to support dual-laser multi-standard optical heads.

The EL6291C requires 3.3V and 5V supplies, with all the logical interface operating on the 3.3V supply.

The EL6291C is available in 32-pin LPP and 32-pin QFN packages for improved thermal performance and reduced footprint.