Oki 2007 Annual Report Download - page 15

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4.
Industry-fi rst ITS-
compatible in-vehicle
single-chip transmitter/
receiver LSI
The ML9636 is a new single-chip
IC product that handles data
transmission and reception
and integrates RF*4 and
MODEM*5 circuits, both of
which are essential for wireless
communications in DSRC, a
communications technology
utilized in ITS systems. The use
of the single-chip eliminates the
need to design RF circuits on
baseband LSIs and the mounting
of digital to analog converters,
thereby contributing to shorter
development cycles for DSRC
systems.
*4 RF: Radio Frequency
*5 MODEM: Modulator-Demodulator
2.
World-fi rst UV sensor
IC using thin-fi lm SOI
OKI has commercialized the
ML8511 ultra-violet (UV) sensor
IC using thin-fi lm SOI. While
conventional UV sensors use
compound semiconductors,
OKI is the fi rst company in the
world to have succeeded in us-
ing thin-fi lm SOI in UV sensors.
Enabling an analog voltage out-
put function proportional to UV
light intensity on a single chip,
the new IC does not require an
optical cut fi lter, which allows
manufacturers to develop
compact and highly mobile UV
devices at low cost. In addition
to conventional applications
such as accessory-type devices
to measure the amount of UV in
daylight, OKI plans to expand
sales of the ICs to home appli-
ance applications.
1.
Real-time clock IC with
world’s lowest current
consumption
OKI has succeeded in de-
veloping the ML9073/ML9074
real-time clock IC, achieving
the world’s lowest current
consumption at just 0.15 µA.
The ICs are based on OKI’s
specialty SOI*1-CMOS*2 tech-
nology: conventional silicon
wafers are substituted with SOI
wafers that have embedded
insulators; and CMOS are
formed on the SOI wafers. This
technology possesses excellent
electronic properties, and
signifi cantly contributes to the
improvement of energy-savings
in the power-off functions of
mobile devices and audio-video
equipment. Also, the ICs help
improve the life of batteries
on these devices by 150%
compared with conventional
ICs. Their compact size enables
further miniaturization of bat-
tery equipment and condensers.
*1 SOI: Silicon-on-Insulator
*2 CMOS: Complimentary Metal
Oxide Semiconductor 3.
World’s smallest audio
DAC LSI equipped with
stereo speaker amplifi er
In July 2007, OKI commenced
sample shipments of its ML2611
audio LSI with stereo playback-
capable DAC*3, 3-D surround
functionality and speaker
amplifi er all incorporated in a
single chip. Achieving all these
functions in the world’s smallest
package size of 3.0 mm x 3.2 mm
among 16-bit audio DACs, the
new audio LSI is packed with
sophisticated technologies that
allow for authentic reproduction
of low frequency sound on audio
equipment.
*3 DAC: Digital to Analog Converter
6.
10 Gbps optical
transmission receiver
module
The widespread distribution
of image and video data via
the Internet is leading to
increased adoption of optical
receiver-transmitters compat-
ible with 10 Gbps large-capacity
transmission over long or middle
distances in urban settings.
OKI has developed two 10 Gbps
ROSA*6 receiver modules.
Eyeing the future prevalence of
the 10 Gbps optical transmission
standard, OKI has commenced
the sale of sample modules on a
global scale. For the fi scal year
ending March 2008, OKI expects
the number of the two modules
sold to reach 60,000.
*6 ROSA: Receiver Optical Sub
Assembly; an optical receiver
device optimized for mounting on
compact transceivers.
5.
High performance
driver LSI for full high-
defi nition LCD TVs
As larger full high-defi nition
LCD TVs grow in popularity,
users are seeking better color
reproduction on their LCD TVs.
To respond to this demand, OKI
developed three new large TFT
driver LSIs—being released
successively—best suited for
full high-defi nition LCD TV
applications. Characterized by
two-fold high-speed drives and
reduced heat generation by 35%
compared to other driver LSIs,
the new driver LSIs are highly
advanced and capable of display-
ing one billion colors based on a
10-bit multi gray-scale. Looking
ahead, OKI will enhance the
lineup of its high-value-added
products and expand its market
share for driver LSIs.
10 Gbps ROSA module
ML9074
ML2611
ML9636
10-bi t TFT driv er
ML8511
siness Group
14