San Jose, Calif. Renesas Technology America's new SH-MobileL3V multimedia processor has been designed to bring terrestrial digital broadcast capabilities to mobile phones. The SH7354 will be available in August at $21 in lots of 10,000 pieces.
At the heart of the multimedia processing chip is a SuperH type SH4AL-DSP CPU core with cache memory, a direct memory access controller (DMAC) and a memory management unit (MMU) that achieves high processing performance: 389 MIPS at its maximum operating frequency of 216MHz. This CPU core provides processing performance of 1.8 MIPS/MHz, sufficient for operating a browser with one-segment broadcasting or a similar digital-TV capability.
Video Processing Engine
Packed into the company's multimedia CPU is the VPU4 image processing engine for video recording and playback, as well as a 5-Megapixel camera-module interface. In a phone for the Japanese market, the video processing unit supports terrestrial digital broadcasting signals using the H.264/MPEG-4 AVC moving-image compression standard at a rate fast enough to encode and decode video at 30 frames per second at VGA definition. That performance makes possible smooth video display and recording, equivalent to that of a standard TV.
Since the VPU4 IP performs almost all video processing by
hardware frees up the CPU to execute software-based computations and
control activities. This division of tasks can allow the design of
mobile phones that use lower clock frequencies for decreased power
consumption and extended battery life.
Supports Digital Video Broadcast
The device also supports systems such as DVB-H (Digital Video Broadcast
for Handhelds) in Europe and DMB (Digital Multimedia Broadcasting) in
South Korea. Moreover, since the VPU4 IP can also handle MPEG-4
processing, the SH-MobileL3V implements a variety of moving-image
applications such as video mail, videophones, and video clips.
Other multimedia-oriented features of the device include a direct
connection interface to a 5-megapixel-class camera module and a 24-bit
LCD interface. The camera interface allows high-speed capture of
high-definition image data and versatile image processing. It can
perform electronic image zoom, screen overlapping, and more; has a
hardware cursor function; and supports YUV data of BT.709 specifications. The latter makes it possible to extract TV broadcast data and convert it to a JPEG image with no loss of image quality.
The LCD interface supports a 16.78-million-color LCD panel. That
capability, together with the SH-MobileL3V's high-image-quality
compensation functions, enables the implementation of a variety of
impressive displays. The chip also includes a sound interface and
communication interfaces, as well as SD memory card and SIM card
Click below for the system block diagram.
See related image
"This device offers more and better TV and still-picture features for advanced mobile phones," said Brian Davis, director, advanced
solutions group, Renesas Technology America, Inc. "The SH-MobileL3V
multimedia processor is targeted at new phone models that can utilize digital broadcasting services. Those services are being introduced in various countries throughout the world, boosting phone sales and wireless usage."
The SH-MobileL3V multimedia processor is packaged in a compact
281-pin CSP (chip-scale package) measuring 9mm x 11mm x 1.4mm, with 0.5mm pin pitch. In a typical mobile phone, the device connects to the baseband device and performs voice, video, or similar multimedia
application processing. Dedicated interfaces allow easy connection to
the baseband LSIs of various types of phones. This feature, combined
with accelerator functions, system interfaces, and a power management
function optimized for mobile phones, allows customers to quickly
produce advanced models offering market advantages.
Renesas Technology (408) 382-7407
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