Atmel Corporation, a global leader in the development and
fabrication of advanced semiconductor solutions, announced today the
availability of two new laser diode drivers for 8x DVD dual-layer write speed.
The new devices extend Atmel's existing family of laser diode drivers with Low
Voltage Differential Signals (LVDS) for enhanced write speed.
The ATR0839 and ATR0849 support DVD±RW/CD-RW combo drives with
up to 16x writing speed for DVD±RW and 52x for CD-RW. Due to their maximum
output current of more than 700 mA, they also support a write speed of 8x for
the new dual-layer DVD±RWs. Since these new devices are provided in very small
packages, they are particularly suited for small SLIM drives in notebooks, as
well for half-height drives used in desktop PCs and consumer DVD recorders.
The two new devices provide four-channels, one read channel
and three write. The write channels are controlled by LVDS signals. Since the
LVDS termination is on-chip, system designers can save three resistors in their
bill of materials, which helps reduce space and cost. The two outputs can be
used either for DVD laser diodes with a wavelength of 650 nm or for CD laser
diodes with a wavelength of 780 nm.
An integrated oscillator reduces laser mode hopping during
read mode. With four resistors, the oscillator's frequency and swing can be set
for each output separately. The ATR0839 enables the oscillator by LVDS signals.
The ATR0849 performs this function by CMOS-compatible single-ended signals.
Samples of the ATR0839 and ATR0849 are available now in very
small QFN24 packages, which are both Pb-free and green. Atmel is the only
supplier offering such a product in a package measuring only 4 mm x 4 mm x 0.9
mm. Both devices will also be available soon in pin-compatible QFN packages with
the exposed pad on top. Pricing for each of the devices starts at 2.60 US$ in
quantities of 10 k.
Footnote
CD-RW = CD with Read/Write function
DVD±RW = Digital Versatile Disk with Read/Write function
LVDS = Low Voltage Differential Signals
About Atmel
Atmel is a worldwide leader in the design and manufacture of
microcontrollers, advanced logic, mixed-signal, nonvolatile memory and radio
frequency (RF) components. Leveraging one of the industry's broadest
intellectual property (IP) technology portfolios, Atmel is able to provide the
electronics industry with complete system solutions. Focused on consumer,
industrial, security, communications, computing and automotive markets, Atmel
ICs can be found Everywhere You AreSM.
© Atmel Corporation 2005. All rights reserved. Atmel®, logo
and combinations thereof, and others are registered trademarks, and Everywhere
You AreSM and others are the trademarks of Atmel Corporation or its
subsidiaries. Other terms and product names may be trademarks of others.
Information
Atmel's laser diode driver ATR0839/ATR0849 product information
may be retrieved at: http://www.atmel.com/dyn/products/product_card.asp?part_id=3642
(ATR0839)
http://www.atmel.com/dyn/products/product_card.asp?part_id=3643
(ATR0849)
Source: Atmel.com
