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Details, datasheet, quote on part number:NW812
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Datasheet text preview:
NW 812
PCAM for VGA CMOS Sensors with Audio A/D
The NW812 from Divio enables a complete high-quality low-cost VGA PCAM solution with integrated Audio A/D. The NW812 integrates a VGA resolution video engine based on Divio's patented JPEG-LiteTM technology, high-fidelity audio A/D, Gold certified USB, and direct interface to low-cost CMOS sensors, for a complete A/V PCAM solution. PCAMs based on the NW812 capture both video and audio, and deliver a synchronized data stream over a single USB cable. The NW812 JPEG-LiteTM video compression engine provides real-time VGA 12.5 fps performance and includes all necessary
Features and Benefits
High Quality Video and Still Image Capture · Real-time, full-motion digital video capture · 12.5 frames/sec at VGA resolution (640 x 480) · 30 frames/sec at CIF resolution (352 x 288) · Patented JPEG-LiteTM compression technology · Based upon DCT compression algorithm · Provides high-quality image · Dynamic bit-rate control for maximum throughput · Snap shot mode: 640 x 480 Superior Image Processing · Auto exposure and white balancing · Edge detection and enhancement · Back light compensation · Gain/Offset control for RGB and YUV · User-selectable gamma correction · User-selectable hue, saturation and contrast control · Missing pixel interpolation · Down sampling support High-Quality Audio Capture Over USB · Integrated audio A/D · 48 KHz sample rate · 16 bit mono · A/V sync right from the source CMOS Sensor Support · 640 x 480 pixel resolution, progressive scan (non-interlaced) color · Supports both Master and Slave modes · BG/GR color filter support Standard Output Format Support · 640 x 480 / 320 x 240 / 160 x 120 VGA · 352 x 288 CIF · 176 x 144 QCIF Low Power, Small Footprint · 3.3 V operating voltage · 100 pin low-profile LQFP package · USB-IF Gold certified
CMOS VGA Sensor
camera functions including image processing, auto exposure, auto white balancing, color space conversion, missing pixel interpolation, and dynamic bit-rate control. Dynamic bit-rate control automatically adjusts the camera's video compression rate to guarantee the best quality video under any given condition. To simplify implementation and reduce time to market, a NW812 PCAM Reference Design is available directly from Divio. The NW812 Reference Design includes a complete hardware schematic, Windows driver software, and documentation. The NW812 Reference Design is Microsoft WHQL certified, and USB-IF Gold certified. With the NW812, Divio is leading the way to next-generation A/V PCAM solutions on the PC at an affordable price.
NW812 Block Diagram
NW812
SYNC & TG
Image Processor
JPEG-Lite Encoder
A/V Sync
USB
Microphone
Audio A/D
A
P
P
L
I
C
A
T
I
O
N
S
NW 812
Capture - Edit - Videoconference - Internet Chat
Internet
Voice / video
Voice / video
812
812
CD
Still Image
C H AT R O O M
Still Image
CD
Internet Chat
V-Mail
Image Sensor Filter Table
The NW812 supports the standard BG/GR color filter pattern as shown in the table below.
BG/GR Color Filter Pattern 0 0 1 2 3 4 B G B G B 1 G R G R G 2 B G B G B 3 G R G R G 4 B G B G B
PC Camera Manufacturing Kit
Board Components · divio NW812 PCAM engine · 640 x 480 Color CMOS Sensor · USB 1.1 Interface · Fast f/1.6 aperture, 5.7mm lens Kit Contents · divio NW812 PCAM reference board · Windows software drivers · Schematics / Gerber files · Technical Manuals Software Driver Support · TWAIN Driver · Direct Show Applications · Video Capture and Editing · Video E-mail and Video Postcards · Videoconferencing · Still Digital Photography · Surveillance
Sales Information
divio, inc.
441 De Guigne Drive Sunnyvale, CA 94085 USA Phone: (408) 328-3333 Fax: (408) 328-3399 E-mail: sales @ divio.com www.divio.com
Copyright ©2002 divio, inc. All rights reserved. The divio logo and JPEG-Lite are trademarks of divio, inc. Other product names are registered trademarks of their respective companies. Product s p e c i f i c a t i o n s are subject to change without notice.
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