to Show Industry`s First System-on-a-Chip Solution for Multibeam DVD/CD-ROM
Drives At CeBIT
Infineon Technologies announced the first complete,
single chip, system-on-chip solution for advanced, TrueX® Multibeam®,
DVD drives at the CeBIT Conference in Hannover, Germany, March 22-28. The 0.18
micron CMOS single-chip DVD-ROM controller will be in shown in the Afreey, Inc.
booth in hall 9 stand D12. Afreey, an optical drive manufacturer, is one of
the first customers of Infineon and its development partners, Sanyo and Zen
Research. Infineon will formally introduce the chip later this year.
The single chip includes analog front end, digital read channels,
error correction code, servo, host interface and high performance DSP/microcontroller.
This chip is focused on high-performance in a small form-factor with low power
dissipation and offers dual-layer data read functionality in DVD. Infineon's
future products to provide super high integration solutions for the optical
storage industry will support write-once and fully re-writable functionality
in both CD and DVD formats.
The high performance of the drive solution is based on state-of-the-art,
Multibeam optical storage technology, which is delivered through a collaboration
between three companies: Infineon Technologies, Sanyo and Zen Research. When
compared to currently available single beam drives, this multiple-beam optical
storage system boasts greater than 200% higher than average throughput. DVD-ROM
performance and sustained data rates of 25X DVD (over 34 MBytes/sec) and 100X
CD (over 15 MBytes/sec) are expected.
``With combined shipments of DVD-ROM and Combo drives expected
to approach 250 million units by 2004 with CAGRs in excess of 70 percent and
155 percent respectively, solutions that increase performance of these drives
have the potential to garner serious consideration by most of the major drive
manufacturers,'' said Mary Craig, principal analyst at Gartner Dataquest. ``OEMs
should be especially attracted to technologies that can enable substantial power
savings in portable applications.''
Each company contributed state-of-the-art components and intellectual
property to create this breakthrough optical storage system. Sanyo Electric
delivered the complete Zen Multibeam(TM) optical pick-up assembly. ``We believe
that the DVD Multibeam system is the next step in the development of a new generation
of high performance pick-ups from Sanyo,'' said Ryoichi Kawasaki, Sanyo, general
manager, Pickup Engineering. ``Infineon, Sanyo and Zen are working closely together
to break through the barriers of conventional optical drive design.''
Zen Research, the pioneer in multiple beam technologies and architectures,
delivered the key intellectual property required to control and process the
multiple beams and the resulting data. Zen silicon designs are centered on a
series of parallel processors that implement Zen's unique parallel approach
to optical signal processing. A Zen enabled processor design accepts input from
a Zen Multibeam optical system to simultaneously process and serialize data
read from several tracks of standard CD or DVD media. ``DVD is a major convergence
medium and provides an impressive capacity increase over CD,'' said Emil Jachmann,
president and CEO of Zen Research. ``But DVD brought no advance in performance;
the optical drive remains one of the slowest parts of a PC. Infineon's announcement
changes that forever.''
Infineon executed the integration of all required drive control
and data processing functions into the chip. This super-high-integration solution,
boasting 42 million transistors, performs the Multiple beam data processing,
advanced error detection and correction, servo motor control and host interface
The chip integrates seven individual read channel processors to
perform the Multibeam signal processing. Also featuring the 100 MHz, 32-bit
TriCore(TM) Unified Processor core architecture, this chip performs all bus
and memory management functions and controls the ATAPI interface to the host.
192kB of configurable memory supports storage of the read data and operating
code and provides on-chip cache. Additionally, the chip supports up to 2MB of
external flash and 8MB of external SDRAM for serial data management.
Afreey, Inc., a leading CD and DVD drive manufacturer, is the
first company to combine all these elements into the world's highest performance
optical storage system. The company's state-of-the-art engineering and manufacturing
capabilities are critical in meeting the strict performance requirements for
such a design.
The multiple beam approach to illuminating and detecting multiple
tracks uses a diffracted laser beam in conjunction with a multiple beam detector
array. Light from a conventional laser diode is sent through a diffraction grating
that splits the beam into seven discrete beams, spaced evenly to illuminate
seven tracks. The seven beams pass through a beam splitting mirror to the objective
lens and onto the surface of the disc. Focus and tracking are accomplished with
the central beam. Three beams on either side of the center are readable by a
detector array as long as the center is on track and in focus.
The reflected beams return via the same path and are directed
to the multiple beam detector array by the beam splitter mirror. The detector
contains seven discrete detectors spaced to align with seven reflected tracks.
Conventional detectors are also provided for focus and tracking.
This design uses a conventional approach for tracking and seeks.
Performance is far greater than that of conventional drives while supporting
lower, more disc tolerant rotational speeds. This technology is fully compatible
with CD and DVD disks designed to be read in single beam storage systems, resulting
in higher data read performance.
DVD drives have now reached data transfer rates as high as 16X
data, and many in the industry predict that this will be the maximum for single-beam
systems, citing rotational instability at high speed as the primary reason for
this limit. This first implementation of Multibeam for DVD-ROM is expected to
provide 25X data transfer rates.
Thus, performance-sensitive applications such as video games can
directly benefit from this level of performance. However, the beauty of the
Multibeam solution is that `present industry standard' levels of performance
can be achieved at substantially lower power dissipation, due to power savings
in the highly integrated electronics and the lower rotation speed of the disk.
Portable products can now deliver 16X DVD-ROM performance at substantially lower
power dissipation than any existing solution. The obvious result of increased
battery-life is a key benefit for these portable systems.
A beneficial by-product of the reduced rotational speed is a drive that has
less vibration and inherently quieter operation. These are key benefits to a
variety of consumer and computing product concepts now finding their way to
market. One clear application of this reduced-vibration drive is in LCD and
Plasma Thin Panel computers where all electronics and peripherals are integrated
onto the back of the display. The reduced vibration is paramount to ensuring
a stable display and positive user experience when accessing the drive.