ON Semiconductor (Nasdaq: ONNN),
driving innovation in energy efficiency, has released two new highly
signal processor ICs ideal for use in applications such as vehicle reversing
cameras, in-vehicle navigation systems and various consumer video
monitoring security systems where small LCD screens are utilized. The LC749000PT
for automotive applications and the LC749000AT
for consumer products support important end application energy savings
and utilize advanced signal technology to improve the picture quality of
digitally compressed images.
Capable of supporting installations with screen resolutions up to Wide
Video Graphics Array (WVGA), the LC749000PT and LC749000AT integrate an
analog to digital converter (ADC) which receives direct analog picture
signal inputs from a camera. The built-in picture decoding circuit is
able to decode analog picture signals in both NTSC and PAL formats. The
size of the decoded picture signal is then adjusted according to the
resolution of the connected LCD panel by a de-interlacer / scaler to
enhance the picture quality. The 24bit RGB output or 18bit RGB output
with ditheringfunction is then transferred to the application LCD panel
by a built-in programmable timing controller.
ON Semiconductor's new image signal processor ICs incorporate features
designed to optimize the displayed image. These include a scaler, which
scales video output to the correct display resolution automatically, and
a calibration function, which makes rough gradients smooth. Meanwhile, a
built-in dynamic gamma feature helps to improve low light visibility and
display contrast in video and camera applications used in variable light
conditions. Programmable gamma allows fast, easy and convenient
calibration of LCD panels.
Both new devices feature a built-in onscreen display (OSD) function
which allows text characters to be superimposed on the picture data.
These devices also have a built-in OSD switch that achieves more
advanced graphical overlays by employing an additional graphics IC.
Meanwhile, pulse width modulation (PWM) supports adaptive LED backlight
control functionality that can help yield valuable application power
savings of approximately 35 percent. The LC749000PT and LC749000AT are
controlled by an external microcontroller via an I2C or serial
peripheral interface (SPI). Hardware-driven picture processing minimizes
the burden on the software of the microcontroller and in vehicle camera
applications. External fast EEPROM booting ensures that the LCD panel is
operational immediately after the vehicle engine is switched on - an
important feature for rear back-up cameras and many other non-automotive
"Vehicle reversing cameras and many other small screen LCD applications
- for both automotive and non-automotive electronics - are becoming
increasingly popular," said Hideya Ohashi, general manager of ON
Semiconductor's SANYO product division. "With this demand comes
increasingly stringent performance requirements regarding image clarity
in order to maximize the application benefits, including safety. In
addition, there is the challenge of reducing power consumption,
especially in automotive systems to minimize the power burden on the
battery. ON Semiconductor's new image signal processor ICs meet both
sets of demands and are supporting the faster adoption of this important
area of technology."
Packaging and Pricing
The LC749000PT and LC749000AT are offered in a lead-free and
halogen-free TQFP 120-pin package and budgetary priced at $8.00 USD per
unit in quantities of 1,000 units.
About ON Semiconductor
ON Semiconductor (Nasdaq: ONNN) is driving innovation in energy
efficient electronics, empowering design engineers to reduce global
energy use. The company offers a comprehensive portfolio of power and
signal management, logic, discrete and custom solutions to help
customers solve their unique design challenges in automotive,
communications, computing, consumer, industrial, LED lighting, medical,
military/aerospace and power supply applications. ON Semiconductor
operates a responsive, reliable, world-class supply chain and quality
program, and a network of manufacturing facilities, sales offices and
design centers in key markets throughout North America, Europe and the
Asia Pacific regions. For more information, visit http://www.onsemi.com.
ON Semiconductor and the ON Semiconductor logo are registered
trademarks of Semiconductor Components Industries, LLC. All other brand
and product names appearing in this document are registered trademarks
or trademarks of their respective holders. Although the company
references its Web site in this news release, such information on the
Web site is not to be incorporated herein.
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