Techwell Introduces Four Channel Video and Audio Controller Solution for CCTV

SAN JOSE, Calif. and BEIJING, Oct. 30 -- Techwell, Inc., a leading designer of mixed signal video semiconductor solutions for the security surveillance, automotive and consumer electronics industries, today announced the release of the TW2835 Four Channel Video and Audio Controller. Building on the success of the TW2834, the TW2835 integrates six major blocks into one chip including four high quality NTSC/PAL video decoders, four audio A-to-D converters, an audio multiplexer, dual color display controllers, dual video encoders and an advanced OSD (On Screen Display). In addition, TW2835 utilizes a single SDRAM per chip, is available in an optional BGA package, and has a pin-to-pin sister chip called TW2836 that offers the same functionality as TW2835 but does not include audio. Leveraging Techwell's extensive portfolio of security surveillance IC product solutions, the TW2835 is another step forward in helping DVR manufacturers improve quality and functionality, increase time to market, and reduce cost.

Among its many features, the TW2835 supports full real-time D1 recording, adds channel ID information to the video stream for auto decoding and display during playback, and includes a five layer graphic overlay function that displays character/bitmap for OSD, single box, 2D array box, and mouse pointer. The TW2835 also contains a simple interface to support up to 16 channel systems using a cascading connection. In addition, the TW2835 embeds several surveillance specific features including Motion Detection, Zoom, and Horizontal and Vertical Scaling. With built in anti-aliasing filters and high quality comb filters to reduce cross-noise, TW2835 is a high performance and cost effective solution for Digital Video Recorders (DVR) and Quad/Multiplexers.

Amess Kwak, President of Techwell Korea stated, "We are very pleased to expand our product line with the introduction of the TW2835 and TW2836. We believe that the TW2835 is the most feature rich and cost-effective front end solution for 4, 9 and 16 channel Digital Video Recorders and Quad/Multiplexers in the market today. We look forward to continuing to support our customers with this exciting new IC."

TW2835 and TW2836 are in mass production today. Manufactured by TSMC in Taiwan, the TW2835 and TW2836 come in PQFP or BGA package. Techwell is a fabless semiconductor company that designs, markets and sells mixed signal integrated circuits for multiple video applications in the consumer, security surveillance and automotive markets. Techwell designs both general purpose and application specific products that enable the conversion of analog video signals to digital form and perform advanced digital video processing to facilitate the display, storage and transport of video content. Headquartered in San Jose, CA, Techwell currently has over 80 employees in the U.S., Korea, Taiwan, China and Japan. Please visit for more information.