Thursday, June 21, 2018
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Chatting With Google Assistant Gets More Natural
Intel CEO Brian Krzanich Resigns After Found to Have Relationship With Employee
Xbox Won't Support VR
AT&T to Launch Wireless Plans Bundled With Video
NVIDIA CEO Springs Special Titan V GPUs on Elite AI Researchers
Samsung Details its 7nm EUV Technology
HDR10+ Technologies Unveil Licensing and Logo Certification Program
Samsung SDI Unveils New Residential ESS Module
Active Discussions
Which of these DVD media are the best, most durable?
How to back up a PS2 DL game
Copy a protected DVD?
roxio issues with xp pro
Help make DVDInfoPro better with dvdinfomantis!!!
menu making
Optiarc AD-7260S review
cdrw trouble
 Home > News > Optical Storage > Elantec...
Last 7 Days News : SU MO TU WE TH FR SA All News

Monday, June 18, 2001
Elantec Semiconductor introduces "Blue Laser" diode

"...Elantec Semiconductor today introduced a new laser diode driver, the EL6250C, developed specifically for the violet/blue laser diode, a breakthrough in laser technology expected to provide a dramatic increase in data storage capability in compact disk and CD-ROM devices, and such rewritable technologies as HDTV-capable DVD and the emerging DVR formats.

Currently, red laser technology, in the form of the DVD disk, represents the limits of density available to developers. In future-generation optical storage systems using blue laser diodes, the amount of information stored on a given area of a disk's surface will be three or four times greater than that written by the red laser beams. The breakthrough in blue laser technology has far-reaching implications for both the size and storage capacity of applications in the PC, VCR, camcorder, PDA, set-top box and video game markets.

Currently, a DVD can hold about 4.7 gigabytes. Writing with a blue laser will increase that amount to approximately 20 gigabytes. That is sufficient storage to record one full two-hour HDTV movie or four regular DVD movies. The current format CD can store 650 megabytes of information. If the compact disk is double-sided, and dual level, the blue laser can pack into the same space the equivalent of nearly 100 CDs written with an infrared laser. This new high-density technology is expected to expand the consumer and PC applications for the small form factor disks in as well.

The main reason the blue laser has been such a sought after technology is due to the size of its wavelength. Compared with today's lasers, which typically use infrared light (780 to 850 nanometers) or red light (635 to 670 nanometers), blue lasers operate at a shorter wavelength (approximately 400 nanometers). Having a shorter wavelength creates a more concentrated beam of light that can focus to a smaller spot size, and therefore, is able to store and read much more information on the same size compact disk.

A key feature of the EL6250C blue laser driver is that it operates from two discrete supply voltages. The internal logic operates from +5V supply, while the blue laser diode threshold of +5V requires the output stage to run at greater than +6V. Having two supply voltages allows the EL6250C to minimize power consumption while driving the blue laser. In addition the EL6250C integrates the current channels needed for the read, erase, bias and write laser drive power levels, along with a high frequency modulator (HFM) oscillator with high-speed laser driver output. This high level of integration reduces component count, which reduces production costs, shortens signal routing to save design time, and saves board space to enable compact optical pick up unit (OPU) designs.

The EL6250C in a 24-pin QSOP package is priced at $3.60 in 10,000-piece quantities and samples are available now..."

Prassi keeps "CD Rep" after the lawsuit settlement        All News        Prassi keeps "CD Rep" after the lawsuit settlement
Prassi keeps "CD Rep" after the lawsuit settlement     Optical Storage News      Prassi keeps "CD Rep" after the lawsuit settlement

Source Link Get RSS feed Easy Print E-Mail this Message

Related News
Elantec introduces a new Laser driver with high output
Elantec sampling new Laser Driver for notebook CD-R/RW drives
Elantec Semiconductor introduces new laser diode driver for high-speed, low-profile optical disk drive
Elantec introduces two new laser drivers
Elantec releases laser diode driver for 32X CD-R and 20X CD-R/W drives
Elantec Semiconductor announces "EL6145C" laser driver IC
Elantec Semiconductor develops CD/DVD recordable dual Laser driver
Elantec ships "EL6245C" laser driver IC
Elantec ships new IC three channel laser driver
Dual Laser Driver for Combination CD-R/RW and DVD-ROM Optical Drives by Elantec Semiconductor
Elantec Semiconductor introduces dual laser driver for Combo drives
Elantec introduces EL6287C laser diode driver

Most Popular News
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2018 - All rights reserved -
Privacy policy - Contact Us .