LMH6525 Datasheet (National Semiconductor) - Four-hannel Laser Diode Driver

LMH6525, Four-hannel Laser Diode Driver

The LMH™6525/6526 is a laser diode driver for use in combination DVD/CD recordable and rewritable systems.

The part contains two high-current outputs for reading and writing the DVD (650 nm) and CD (780 nm) lasers.

Functionality includes read, write and erase through four separate switched current c

LMH6525 Features

* a 150 mA read channel plus one 300 mA and two 150 mA write channels, which can be summed to allow a total output current of 600 mA or greater. The channel currents are set through four independent current inputs. An on-board High-Frequency Modulator (HFM) oscillator helps reduce low-frequency noise