Smallest laser diode driver IC suits HD-DVD/Blu-ray, DVD and CD format

Smallest laser diode driver IC suits HD-DVD/Blu-ray, DVD and CD format

Paddle-up packaged device improves heat dissipation over traditional QFN packages.

Suited for small slim drives used in notebook computers as well as for half-height drives in desktop PCs and consumer DVD recorders, the ATR0881 laser diode driver IC is offered as the smallest of its kind in a 4 x 4-mm QFN24 package. The part’s QFN housing is a lead-free paddle-up package with the exposed paddle on top to improve heat dissipationunlike traditional QFN packages with a bottom-located exposed paddle that causes difficulties due to its inaccessibility for circuit design, particularly in optical pick-up products.

The chip has 3 outputs for connecting 3 laser diodesa blue (HD-DVD/Blu-ray), a red (DVD), and an infrared (CD). The gain of each of the ATR0881’s 5 channels can be individually programmed using a serial interface.

In addition, the ATR0881 can optionally be set to a special synchronization mode, which synchronizes all write channels to the second channel, thus enabling the generation of very sharp output pulses for increased data security. An integrated frequency counter allows the part to achieve a frequency deviation of less than ±5%. (From $5.00 ea/10,000available now.)

Atmel, USA , San Jose , CA
Sales 408-441-0311
http://www.atmel.com